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Publications

  1. Si-Han Tsai, Yuan-Chu Shen, Chiung-Yi Huang, Ray-Hua Horng, “Deep-ultraviolet Schottky photodetectors with high deepultraviolet/visible rejection based on a ZnGa2O4 thin film”,Applied Surface Science, 496, 143670, (Dec. 2019).

  2. Ming-Chun Tseng, Dong-Sing Wuu, Chi-Lu Chen, Hsin-Ying Lee, Cheng-Yu Chien, Po-Liang Liu, and Ray-Hua Horng, “Characteristics of atomic layer deposition–grown zinc oxide thin film with and without aluminum”, Applied Surface Science, 2019, June (accept).

  3. Yuan-Chu Shen, Chun-Yi Tung, Chiung-Yi Huang, and Ray-Hua Horng, “Study on optoelectronic characteristic of ZnGa2O4 thin-film phototransistors”, ACS Appl. Electronic Materials, in press (May, 2019).

  4. Min-Ru Wu, Wei-Zhong Li, Chun-Yi Tung, Chiung-Yi Huang, Yi-Hung Chiang, Po-Liang Liu and Ray-Hua Horng, “NO gas sensor based on ZnGa2O4 epilayer grown by metalorganic chemical vapor deposition”, Scientific Reports, 9, 7459 (May, 2019).

  5. R. H. Horng, Shreekant Sinha, C. P. Lee, H. A. Feng, C. Y. Chung, and C. W. Tu, “Composite metal substrate for thin film AlGaInP LED applications”, Optics Express, Vol. 27, A397-A403 (Apr. 2019).

  6. Li-Chung Cheng, Min-Ru Wu, Chiung-Yi Huang, Tzu-Kuang Juang, Po-Liang Liu and Ray-Hua Horng, “Effect of Defects on the Properties of ZnGa2O4 Thin-Film Transistor”, ACS Appl. Electronic Materials,1, pp. 253-259 (Jan, 2019).

  7. Yu-Cheng Kao, Hao-Ming Chou, Albert Lin, Shun-Chieh Hsu, Chien Chung Lin, Zun-Hao Shih, Chun-Ling Chang, Hwen-Fen Hong, Ray-Hua Horng, “Performance comparison of III–V//Si and III–V//InGaAs multi-junction solar cells fabricated by the combination of mechanical stacking and wire bonding” , Scientific Reports, 9, 4308(page 1-11) (March, 2019).

  8. Ray-Hua Horng, Ming-Chun Tseng  and Dong-Sing Wuu, “”Surface Treatments on the Characteristics of Metal–Oxide Semiconductor Capacitors”, Crystal, 9(1), 1-9, 2019

  9. Chun-Han Ku, Wei-Kai Wang, Ray-Hua Horng, “Improvement of light extraction for AlGaN-based near UV LEDs with flip-chip bonding fabricated on grooved sapphire substrate using laser ablation”, Materials Science in Semiconductor Processing, 95, pp. 48-53(June, 2019).

  10. Ya-Wei Huan,  Xing-Lu Wang, Wen-Jun , Hong Dong, Shi-Bing Long, Sun-Ming  Sun,  Jian-Guo Su-Dong Wu,  Wen-Jie Yu, Ray-Hua Horng, Chang-Tai Xia, Hong-Yu Yu, Hong-Liang  Lu, Qing-Qing Sun, Shi-Jin Ding, David Wei  Zhang,  “Band alignment of indium-gallium-zinc oxide/beta-Ga2O3 heterojunction determined by angle-resolved X-ray photoelectron spectroscopy, JAPANESE JOURNAL OF APPLIED PHYSICS, 10, 11302 (Oct. 2018).

  11. Si-Han Tsai, Sarbani Basu, Chiung-Yi Huang, Liang-Ching Hsu, Yan-Gu Lin, Ray-Hua Horng, “Deep-Ultraviolet Photodetectors Based on Epitaxial ZnGa2O4 Thin Films”, Scientific Reports, (Sep. 2018).

  12. Ray-Hua Horng,, Huan-Yu Chien, Fu-Gow Tarntair, and Dong-Sing Wuu, “Fabrication and Study on Red Light Micro-LED Displays”, IEEE Journal of the Electron Devices Society, Vol. 6, pp. 1064-1069 (Aug. 2018).

  13. Tzu-Yu Wang,  Chi-Tsung Tasi,  Ku-Yen Lin, Sin-Liang Ou, Ray-Hua Horng, Dong-Sing Wuu “Surface evolution and effect of V/III ratio modulation on etch-pit-density improvement of thin AlN templates on nano-patterned sapphire substrates by metalorganic chemical vapor deposition”, APPLIED SURFACE SCIENCE, 455, pp. 1123-1130, 2018 (OCT 15 2018).

  14. Shun-Ming Sun, Wen-Jun Liu, Yong-Ping Wang, Ya-Wei Huan, Gan Ma, Bao Zhu, Su-Dong Wu,  Wen-Jie Yu, Ray-Hua Horng, Chang-Tai Xia, Qing-Qing Sun, Shi-Jin Ding, David Wei Zhang,, “Band alignment of In2O3/beta-Ga2O3 interface determined by X-ray photoelectron spectroscopy”, Appl. Phys. Lett, 113(3), 031603 (2018)( JUL 16 2018).

  15. Wu-Chang Peng, Yao-Ching Chen, Ju-Liang He, Sin-Liang Ou, Ray-Hua Horng,Dong-Sing Wuu, “Tunability of p- and n-channel TiOx thin film transistors”, Scientific Reports, Vol. 8, 9255 (Jun. 2018). JUN 18 2018.

  16. Shun-Chieh Hsu, Yu-Ming Huang, Yu-Cheng Kao, Hao-Chung Kuo, Ray-Hua Horng, and Chien-Chung Lin,” The Analysis of Dual-Junction Tandem Solar Cells Enhanced by Surface Dispensed Quantum Dots”, IEEE Photonic Journal, (Aug. 2018).

  17. Ching-Ho Chen, Jia-Jhen Jhen, Dong-Sing Wuu, and Ray-Hua Horng, “A New Material and Structures for Light-Emitting Thyristor Applications”, IEEE Transactions on Electron Devices, vol. 65, no. 7, pp. 2904-2908 (JULY 2018).

  18. Ray-Hua Horng, Huan-Yu Chien, Ken-Yen Chen, Wei-Yu Tseng, Yu-Ting Tsai, and Fu-Gow Tarntair, “Development and Fabrication of AlGaInP-Based Flip-Chip Micro-LEDs”, IEEE Journal of the Electron Devices Society, Vol. 6, pp. 475-479 (April 2018).

  19. Li-Chung Cheng, Chiung-Yi Huang, and Ray-Hua Horng, “Thickness Effect on Operation Modes of ZnGa2O4 MOSFETs with High-Breakdown Voltage”, IEEE Journal of the Electron Devices Society, Vol. 6, pp. 432-437 (April 2018).

  20. Wen-Ching Cheng, Shih-Yung Huang, Yi-Jiun Chen, Chia-Sheng Wang, Hoang Yan Lin, Tzong- Ming Wu, Ray-Hua Horng, “AlGaInP Red LEDs with Hollow Hemispherical Polystyrene Arrays”, Scientific Reports, Vol. 8, 911 (1-7) (Jan. 2018).

  21. Ray-Hua Horng, Chiung-Yi Huang, Sin-Liang Ou, Tzu-Kuang Juang, and Po-Liang Liu, “ Epitaxial Growth of ZnGa2O4: A New Deep Ultraviolet Semiconductor Candidate”, Crystal Growth & Design , Vol. 17, pp. 6071-6078 (Nov. 2017).

  22. Ching-Ho Chen, Ming-Chun Tseng, Yu-Jie Chen, Dong-Sing Wuu, and Ray-Hua Horng, “Performance comparisons of light-emitting thyristors with and without indium tin oxide transparent conductive layers”, PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 1700442 (Oct. 2017).

  23. Ming-Chun Tseng, Dong-Sing Wuu, Chi-Lu Chen, Hsin-Ying Lee, and Ray-Hua Horng, ” Zinc Oxide-Based Current Spreading Layer Behavior on the Performance of P-side-up Thin-Film Red Light Emitting Diodes”, Applied Surface Science, 432, pp. 196–201, Jan. 2018.

  24. Ray-Hua Horng,Yu-Yuan Zeng, Wei-Kai Wang, Chia-Lung Tsai, Yi-Keng Fu,  and Wei-Hung Kuo, “Transparent electrode design for AlGaN deep-ultraviolet light-emitting diodes”, Optics Express, 25, 32206, (Dec. 2017).

  25. Ching-Ho Tien, Chen-Hao Kuo, Dong-Sing Wuu, and Ray-Hua Horng,” Improved Optoelectronic Performance of High-Voltage Ultraviolet Light-Emitting Diodes Through Electrode Designs”, IEEE Transaction on Electron Device, 64(11), pp. 4526-4521, Sep., 2017.

  26. Ming-Hsien Wu, Ray-Hua Horng, Wen-Yih Liao, Sheng-Po Chang, and Shoou-Jinn Chang,” Efficiency Enhancement in InGaN Photovoltaic Cells With Inverted Textured Surface”, IEEE Photonics Technology Letters, VOL. 29, NO. 16, pp. 1304-1307, AUGUST 15, 2017.

  27. Chi-Tsung, Tasi, Wei-Kai Wang, Tsung-Yen Tsai, Shih-Yung Huang,  Ray-Hua Horng, Dong-Sing Wuu, Reduction of Defects in AlGaN Grown on Nanoscale-Patterned Sapphire Substrates by Hydride Vapor Phase Epitaxy”, Materials, 10, 6, 605, Jun. 2017.

  28. Shuo-Huang Yuan, Feng-Yeh Chang, Dong-Sing Wuu, and Ray-Hua Horng,“AlGaN/GaN MOS-HEMTs with Corona-Discharge Plasma Treatment”, Crystals, 7, 146, 7050146(1-8), 2017(18 May 2017).

  29. Ping-Chen Wu, Sin-Liang Ou, Ray-Hua Horng and Dong-Sing Wuu, “Improvement Performance and Heat Dissipation of Flip-Chip White High-Voltage Light Emitting Diodes”, IEEE Transaction on Electron Device, 17, pp. 197-302, March, 2017.

  30. Ming-Chun Tseng, Dong-Sing Wuu, Chi-Lu Chen, Hsin-Ying Lee, Ray-Hua Horng, “Ohmic contact behavior of aluminum-doped zinc oxide with carbon-doped p-GaP epilayer for AlGaInP LEDs applications”, Current Applied Physics,17(7), pp. 966-971 JUL 2017.

  31. Ping-Chen Wu, Sin-Liang Ou, Ray-Hua Horng, “Dong-Sing Wu, Improved Performance of high-voltage vertical GaN LEDs via modification of micro-cell geometry”, Applied Science-Basel,  Vol. 7, 6, P. 506, (Jun, 2017).

  32. Yi-Siang Shen, Wei-Kai Wang and Ray-Hua Horng,” Characterizations of Metal-Oxide- Semiconductor Field-Effect Transistors of ZnGaO grown on Sapphire Substrate”, IEEE Journal of the Electron Devices Society, Vol. 5, pp. 112-116 (MARCH 2017).

  33. Ray-Hua Horng, Hsu-Hung Hsueh, Sin-Liang Ou, Chi-Tsung Tsai, Tsung-Yen Tsai and Dong-Sing Wuu, “Chemical lift-off process for nitride LEDs from an Eco-GaN template using an AlN/strip-patterned-SiO2 sacrificial layer”, PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 214, 3, P. 1600657, March, 2017.

  34. Ming-Chun Tseng, Dong-Sing Wuu, Chi-Lu Chen, Hsin-Ying Lee, Yu-Chang Lin, and Ray-Hua Horng, “Performance of p-Side-Up Thin-Film AlGaInP Light-Emitting Diodes With Textured Composite Aluminum-Doped Zinc Oxide Transparent Conductive Layers”, Surface and Coatings Technology, 320, pp.421-425, 2016.

  35. Ming-Chun Tseng, Dong-Sing Wuu, Chi-Lu Chen, Hsin-Ying Lee, Yu-Chang Lin, and Ray-Hua Horng, " Enhanced light extraction in wafer-bonded p-side-up thin-film AlGaInP light emitting diodes via zinc oxide nanorods ", Optical Materials Express, Vol. 6, No.10 , Oct. 3293-3302, 2016.

  36. Ching-Ho Tien, Kuo-Wei Ho, Huan-Yu Chien, Dong-Sing Wuu, and Ray-Hua Horng, “Effect of the Phosphor Permanent Layer on the Angular CCT for White Thin-Film Flip-Chip Light-Emitting Diodes”, IEEE Transaction on Electron Device, 63, 3977-3982, Oct., 2016.

  37. Tzu-Hao Wang, Hsuan Lee, Chih-Ming Chen, Ming-Guan Chen, Chi-Chang Hu, Yu-Jie Chen, Ray-Hua Horng, “Microstructural and thermal characterizations of light-emitting diode employing a low-temperature die-bonding material”, Microelectronics Reliability, 63,68-75,2016.

  38. Hsu-Hung Hsueh, Sin-Liang Ou, Yu-Che Peng, Chiao-Yang Cheng, Dong-Sing Wuu, and Ray-Hua Horng, " Effect of Top-Region Area of Flat-Top Pyramid Patterned Sapphire Substrate on the Optoelectronic Performance of GaN-Based Light Emitting Diodes", J. Nanomaterials, vol. 2016, 2701028, May, 2016.

  39. Yu-Cheng Kao, Sin-Liang Ou, Fan-Lei Wu, Ray-Hua Horng, " Performance enhancement of III-V multi-junction solar cells using indium-tin-oxide electrodes ", Thin Solid Films, 612, 36-40, May, 2016.

  40. Ming-Chun Tseng, Dong-Sing Wuu, Chi-Lu Chen, Hsin-Ying Lee, Yu-Chang Lin, and Ray-Hua Horng, " Performance Comparison of p-Side-up Thin-Film AlGaInP Light Emitting Diodes with Aluminum-Doped Zinc Oxide and Indium Tin Oxide Transparent Conductive Layers", Optical Material Express, Vol. 6, No. 4, 1351-1359, 2016.

  41. Chih-Tung Yeh, Wei-Kai Wang, Yi-Siang Shen, and Ray-Hua Horng, "1.48 -kV Enhancement- mode AlGaN/GaN high-electron-mobility transistors fabricated on 6-in silicon by fluoride-based plasma treatment", Jpn. J. Appl. Phys. 55, 05FK06-1~05FK06-4 , 2016.

  42. Ray-Hua Horng, Sin-Liang Ou, Chiung-Yi Huang, Parvaneh Ravadgar, Chih-I Wu, “Effects of Ga concentration and rapid thermal annealing on the structural, optoelectronic and photoluminescence properties of Ga-doped ZnO thin films”, Thin Solid Films, Vol. 605, 30-36, 2016.

  43. Ching-Ting Lee, Chang-Lin Yang, Chun-Yen Tseng, Jhe-Hao Chang, and Ray-Hua Horng," GaN-Based Enhancement-Mode Metal–Oxide– Semiconductor High-Electron Mobility Transistors Using LiNbO3 Ferroelectric Insulator on Gate-Recessed Structure", IEEE TRANSACTIONS ON ELECTRON DEVICES, VOL. 62, NO. 8, AUGUST, pp. 2481-2487, 2015.

  44. Chien-Fu Tseng, Tsung-Yen Tsai, Yen-Hsiu Huang, Ming-Tsang Lee, Ray-Hua Horng, “Transport phenomena and the effects of reactor geometry for epitaxial GaN growth in a vertical MOCVD reactor”, Journal of Crystal Growth, Vol. 432, 54–63, 2015.

  45. Ray-Hua Horng, Ken-Yen Chen, Ching-Ho Tien, and Jung-Chuan Liao, " Effects of Mesa Size on Current Spreading and Light Extraction of GaN-Based LEDs", JOURNAL OF DISPLAY TECHNOLOGY, VOL. 11, NO12. 1010, 2015,

  46. Ming-Chun Tseng, Ray-Hua Horng , Dong-Sing Wuu, Shui-Yang Lien, " Silicon films deposited on flexible substrate by hot-wire chemical-vapor deposition", Vacuum 118, 109-112, 2015.

  47. Tsung-Shine Ko, Der-Yuh Lin, You-Chi He,1 Chen-Chia Kao,1 Bo-Yuan Hu,1 Ray-Hua Horng,2 Fan-Lei Wu, Chih-Hung Wu, and Yu-Li Tsai, " Optoelectric Properties of GaInP p-i-n Solar Cells with Different i-Layer Thicknesses",  International Journal of Photoenergy Volume 2015, Article ID 703045, 7 pages.

  48.  Li-Chin Cheng, Chih-Ming Chen, Ming-Guan Chen, Chi-Chang Hu, Hsin-Yi Jiang, Ray-Hua Horng, and Dong-Sing Wuu, " A High-Temperature Die-Bonding Structure Fabricated at Low Temperature for Light-Emitting Diodes", IEEE ELECTRON DEVICE LETTERS, VOL. 36, NO. 8, AUGUST 2015, pp. 835-837.

  49. Fan-Lei Wu, Sin-Liang Ou, Yu-Cheng Kao, Chun-Li Chen, Ming-Chun Tseng, Fang-Ching Lu, Ming-Tzer Lin, and Ray-Hua Horng, " Thin-film vertical-type AlGaInP LEDs fabricated by epitaxial lift-off process via the patterned design of Cu substrate", Opt. Express, 23(14), pp.15856 (2015/July 15).

  50. Kung-Cheng Chen, Shih-Yung Huang, Wei-Kai Wang, and Ray-Hua Horng, "Performance improvement of vertical ultraviolet-LEDs with AlSi alloy substrates", Opt. Express, 23(12), pp.15452 (2015/Jun. 15).

  51. Shih-Hao Chuang, Cheng-Sheng Tsung, Ching-Ho Chen, Sin-Liang Ou,†Ray-Hua Horng, Cheng-Yi Lin, and Dong-Sing Wuu, "Transparent Conductive Oxide Films Embedded with Plasmonic Nanostructure for Light-Emitting Diode Applications ", ACS Appl. Mater. Interfaces 7(4), 2546–2553 (2015).

  52. Hsu-Hung Hsueh, Sin-Liang Ou, Dong-Sing Wuu, Ray-Hua Horng, "InGaN LED fabricated on Eco-GaN template with a Ga2O3 sacrificial layer for chemical lift-off application", Vacuum, Vacuum 118 (2015) 8-12

  53. Huan-Ting Lin, Ching-Ho Tien, Chen-Peng Hsu and Ray-Hua Horng, “White thin-film flip-chip LEDs with uniform color temperature using laser lift-off and conformal phosphor coating technologies” Opt. Express, 22(26), pp.31646-31653 (2014/Dec.15).

  54. Ming-Chun Tseng,  Chi-Lu Chen, Nan-Kai Lai, Shih-I Chen, Tzu-Chieh Hsu, Yu-Ren Peng, and Ray-Hua Horng, “ P-side-up thin-film AlGaInP-based light emitting diodes with direct ohmic contact of an ITO layer with a GaP window layer,” Opt. Express, 22(S7), A1962-A1867 (2014/Dec.15)

  55. Ken-Yen Chen, Ching-Ho Tien, Chen-Peng Hsu, Chao-Yu Pai, and Ray-Hua Horng, "Fabrication and Improved Performance of  GaN LEDs With Finger-Type Structure", IEEE Transactions on Electron Devices, 61, Pages 4128-4131 (2014/Dec. IF:2.267).

  56. Tiziana Tambosso, Ray-Hua Horng, Silvano Donati, " Curvature of Substrates is Measured by Means of a Self-Mixing Scheme", IEEE PHOTONICS TECHNOLOGY LETTERS, Vol. 26, pp. 2170-2172 (2014/ Nov).

  57. Hung-I Lin, Ray-Hua Horng, Kun-Ching Shen, and Dong-Sing Wuu, “ZnO Nanowires Embedded in Epoxy Resin Separating from the Substrate for Wearable Electronics Applications”, IEEE Transactions on Nanotechnology, vol. 13, pp. 458-463 (2014/ May)

  58. Tzu-Yu Wang, Sin-Liang Ou,  Ray-Hua Horng,  Dong-Sing Wuu, " Improved GaN-on-Si epitaxial quality by incorporating various SixNy interlayer structures ", JOURNAL OF CRYSTAL GROWTH, Vol. 399, pp. 27-32 (2014/Aug).

  59. C. H. Tien, K. Y. Chen, C. P. Hsu, and R. H. Horng, “Enhanced light output power of thin film GaN-based high voltage light-emitting diodes,” Opt. Express, 22(S6), A1462-A1468 (2014).

  60. Hsu-Hung Hsueh, Sin-Liang Ou, Chiao-Yang Cheng, Dong-SingWuu, and Ray-Hua Horng, " Performance of InGaN Light-Emitting Diodes Fabricated on Patterned Sapphire Substrates with Modified Top-Tip Cone Shapes", International Journal of Photoenergy, Volume 2014, Article ID 796253, 7 pages 1-7.

  61.  Shih-Yi Wen, Hung-Lieh Hu, Yao-Jun Tsai, Chen-Peng Hsu, Re-Ching Lin, and Ray Hua Horng, " A novel integrated structure of thin film GaN LED with ultra-low thermal resistance", Optics Express, Vol. 22, S3, pp. A601-606, 2014 (12 Mar).

  62. Ray-Hua Horng, Bing-Rui Wu, Ching-Ho Tien, Sin-Liang Ou, Min-Hao Yang, Hao-Chung Kuo, and Dong-Sing Wuu, "Performance of GaN-based light-emitting diodes fabricated using GaN epilayers grown on silicon substrates", Optics Express, Vol. 22, pp. A179-187, 2014 (13 January).

  63. Rau-Hua Horng, Kun-Ching Shen, Ching-Ho Tien,  Sin-Cyuan Lin, Dong-Sing Wuu,  Performance of Cu-Plating Vertical LEDs in Heat Dissipation Using Diamond-Like Carbon, IEEE ELECTRON DEVICE LETTERS, Vol. 35, pp. 169-171, 2014(Feb).

  64. Ray-Hua Horng, Kei May Lau, Hao-Chung Kuo, Nelson Tansu, " Solid-State Lighting with High Brightness, High Efficiency, and Low Cost", INTERNATIONAL JOURNAL OF PHOTOENERGY, 278263, 2014.

  65. Hsu-Hung Hsueh, Sin-Liang Ou, Chiao-Yang Cheng, Dong-Sing Wuu, Ray-Hua Horng, " Performance of InGaN Light-Emitting Diodes Fabricated on Patterned Sapphire Substrates with Modified Top-Tip Cone Shapes" , INTERNATIONAL JOURNAL OF PHOTOENERGY, 796253, 2014.

  66. Tzu Yu Wang, Sin Liang Ou,  Ray Hua Horng, Dong Sing Wuu, "Growth evolution of SixNy on the GaN underlayer and its effects on GaN-on-Si (111) heteroepitaxial quality", CRYSTENGCOMM,  Vol. 16, 5724-5731 (2014).

  67. Fan-Lei Wu , Sin-Liang Ou, Ray-Hua Horng and Yu-Cheng Kao, Improvement in Separation Rate of Epitaxial Lift-off by Hydrophilic Solvent for GaAs Solar Cell Applications", Solar Energy Materials & Solar Cells, 122, pp. 233–240, 2014.

  68. Kun-Ching Shen, Ming-Chien Jiang, Hong-Ru Liu, Hsu-Hung Hsueh, Yu-Cheng, Kao, Ray-Hua Horng, and Dong-Sing Wuu,” Pulsed laser deposition of hexagonal GaN-on-Si(100) template for MOCVD applications”, Optics Express , Vol. 21, No. 22 , 26468-26474 (2013,Nov. 4 )

  69. Ray-Hua Horng, Ming-Chun Tseng,1 and Shui-Yang Lien, " Reliability Analysis of III-V Solar Cells Grown on Recycled GaAs Substrates and an Electroplated Nickel Substrate", International Journal of Photoenergy, 2013, 108696-1~9, (2013).

  70. Parvaneh Ravadgar, Ray-Hua Horng, Shu-De Yao, Hsin-Ying Lee, Bing-Rui Wu Sin-Liang Ou, and Li-Wei Tu, “Effects of crystallinity and point defects on optoelectronic applications of β-Ga2O3 epilayers”, Optics Express, Vol. 21, No 21, 24599-24610 (2013, 21 Oct. ).

  71. Kun-Ching Shen, Wen-Yu Lin, Dong-Sing Wuu, Shih-Yung Huang, Kuo-Sheng Wen, Shih-Feng Pai, Liang-Wen Wu, and Ray-Hua Horng, " An 83% Enhancement in the External Quantum Efficiency of Ultraviolet Flip-Chip Light-Emitting Diodes With the Incorporation of a Self-Textured Oxide Mask ", IEEE ELECTRON DEVICE LETTERS, VOL. 34, NO. 2, pp. 274-276, FEBRUARY 2013.

  72. Wei-Chih Lai, Ya-Yu Yang, and Ray-Hua Horng, " Efficiency Improvement of Short-Period InGaN/GaN Multiple-Quantum Well Solar Cells With H2 in the GaN Cap Layer", JOURNAL OF DISPLAY TECHNOLOGY, VOL. 9, NO. 12, pp. 953-956, DECEMBER 2013.

  73. Silvano Donati and Ray-Hua Horng, " The Diagram of Feedback Regimes Revisited", IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, VOL. 19, NO. 4, pp. 1500309, JULY/AUGUST 2013.

  74. Shih-Hao Chuang, Chun-Ting Pan, Kun-Ching Shen, Sin-Liang Ou, Dong-Sing Wuu,  Ray-Hua Horng, " Thin Film GaN LEDs Using a Patterned Oxide Sacrificial Layer by Chemical Lift-Off Process ", IEEE Photonics Technology Letters, 24(25), 2435-2438, 2013 (Dec.)

  75. Ray-Hua Horng, Bing-Rui Wu, Chi-Feng Weng, Parvaneh Ravadgar, Tzong-Ming Wu, Sing-Ping Wang, Jr-Hau He, Tsung-Hsien Yang, Yi-Ming Chen, Tzu-Chieh Hsu, Ai-Sen Liu, and Dong-Sing Wuu,” P-side up AlGaInP-based light emitting diodes with dot-patterned GaAs contact layers”, Optics Express, Vol. 21, No 17, 19668-19674 (2013, 26 Aug).

  76. Ray-Hua Horng, Kun-Ching Shen, Chen-Yang Yin, Chiung-Yi Huang, and Dong-Sing Wuu, “High performance of Ga-doped ZnO transparent conductive layers using MOCVD for GaN LED applications”, Optics Express, Vol. 21, No 12, 14452-14457 (2013, 17 June )

  77. Hung-I Lin, Dong-Sing Wuu, Kun-Ching Shen, and Ray-Hua Horng, " Fabrication of an Ultra-Flexible ZnO Nanogeneratorfor Harvesting Energy from Respiration",  ECS Journal of Solid State Science and Technology, 2 (9) P400-P404 (2013).

  78. Chiung-Yi Huang, Ray-Hua Horng,Dong-Sing Wuu, Li-Wei Tu, and Hsiang-Shun Kao, “Thermal annealing effect on material characterizations of b-Ga2O3 epilayer grown by metal organic chemical vapor deposition”, Appl. Phys. Lett., 102, 011119 (2013).

  79. Ray-Hua Horng , Kun-Ching Shen, Yu-Wei Kuo, and Dong-Sing Wuu“ GaN light emitting diodes with wings-type imbedded contacts”, Optics Express, Vol. 21, No. S1, A1-A6 (2013).

  80. Chih-Cheng Huang, Chen-Chia Kao, Der-Yuh Lin, Chih-Ming Lin, Fan-Lei Wu, Ray-Hua Horng, and Ying-Sheng Huang, " A Comprehensive Study on the Optical Propertiesof Thin Gold-Doped Rhenium Disulphide Layered Single Crystals", Japanese Journal of Applied Physics 52 (2013) 04CH11.

  81. Hui-Ping Pan, Feng-Feng Cheng, Lin Li, Ray-Hua Horng, Shu-De Yao, “Structral analyses of Ga2+xO3-x thin films grown on sapphire substrates”, ACTA PHYSICA SINICA, 62 (2013).

  82. Je-Yi Wu, Chih-Ming Chen, Ray-Hua Horng, Dong-Sing Wuu, “An Efficient Metal-Core Printed Circuit Board With a Copper-Filled Through (Blind) Hole for Light-Emitting Diodes”, IEEE ELECTRON DEVICE LETTERS, 34, pp. 105-107 (JAN 2013).

  83. Ray-Hua Horng, Wei-Cheng Kao,  Sin-Liang Ou,  and Dong-Sing Wuu, “Effect of diamond like carbon layer on heat dissipation and optoelectronic performance of vertical-type InGaN light emitting diodes”, Appl. Phys. Lett. 101, 171102-1~4 (2012).

  84. P. Ravadgar, R. H. Horng, S. L. Ou, “A visualization of threading dislocations formation and dynamics in mosaic growth of GaN-based light emitting diode epitaxial layers on (0001) sapphire”, Appl. Phys. Lett., 101, 2319119 (2012/12).

  85. Ray Hua Horng, Hung Lieh Hu, Re Ching Lin, Li Shen Tang, Chen Peng Hsu, and Sin Liang Ou, “Cup-shaped copper heat spreader in multi-chip high-power LEDs application”, Optics Express Vol. 20, Iss. S5, pp. A597–A605 (2012).

  86. Ray-Hua Horng, Kun-Ching Shen, Yu-Wei Kuo, and Dong-Sing Wuu, “Effects of cell distance on the performance of GaN high-voltage light emitting diode,”, Electrochem. Solid State Lett. (ECS Solid State Letters, 1 (5) R21-R23 (2012).

  87. Kun-Ching Shen, Tzu-Yu Wang  Dong-Sing Wuu, and Ray-Hua Horng, “High thermal stability of high indium content InGaN films grown by pulsed laser deposition”, OPTICS EXPRESS, Vol. 20, 21173, September (2012).

  88. Ming-Hsien Wu, Sheng-Po Chang, Shoou-Jinn Chang, Ray-Hua Horng, Wen-Yih Liao, Ray-Ming Lin, “Characteristics of GaN/InGaN double-heterostructure photovoltaic cells”, International Journal of Photoenergy, Volume 2012, Article ID 206174-1-5 ( 2012, IF:1.769).

  89. P. Ravadgar, R. H. Horng and T. Y. Wang, “Healing of Surface States and Point Defects of Single-Crystal b-Ga2O3 Epilayers”, ECS J. Solid State Sci. Technol., Volume 1, Issue 4, Pages N58-N60 (2012)

  90. Sin-Liang Ou, Dong-Sing Wuu,  Yu-Chuan Fu, Shu-Ping Liu, Ray-Hua Horng, Lei Liu, Zhe- Chuan Feng, “Growth and etching characteristics of gallium oxide thin films by pulsed laser deposition”, MATERIALS CHEMISTRY AND PHYSICS, 133, Pages: 700-705,  APR 16 2012.

  91. Kun-Ching Shen, Tzu-Yu Wang, Dong-Sing Wuu, and Ray-Hua Horng, “High indium content InGaN films grown by pulsed laser deposition using a dual-compositing target”, Optical Express, Vol. 20, No. 14, pp.15149-15156 (2012).

  92. Ray-Hua Horng, Hung-Lieh Hu, Sin-Liang Ou, Re-Ching Lin and Chen-Peng Hsu, “Enhancement of Light Extraction for InGaN LEDs by Means of Beveled Sapphire and Cup-shapedCopper Sheeting”, IEEE Photonics Technology Letters, VOL. 24, NO. 16,1421, AUGUST 15, (2012).

  93. Hung-Lieh Hu, Ray-Hua Horng and Chen-Peng Hsu, “Improved Design of Cup-Shaped Copper Heat Spreaders for High-Power InGaN/Sapphire LEDs”, ECS Journal of Solid State Science and Technology, 1(2), R76-79 (2012).

  94. Ray-Hua Horng, Ming-Chun Tseng, Fan-Lei Wu, Chia-Hao Li, Chih-Hung Wu, and Min-De Yang, “Thin Film Solar Cells Fabricated Using Cross-Shaped Pattern Epilayer Lift-Off Technology for Substrate Recycling Applications”,  IEEE Transactions on Electron Devices, 59, pp. 666-672, MARCH 2012. (IF: 2.267) (Ranking: 34/247= 13.77%).

  95. Bing-Rui Wu, Shih-Yung Lo, Dong-Sing Wuu, Sin-Liang Ou, Hsin-Yuan Mao, Jui-Hao Wang , Ray-Hua Horng, “Direct growth of large grain polycrystalline silicon films on aluminum-induced crystallization seed layer using hot-wire chemical vapor deposition”, Thin Solid Films 520 (2012) 5860–5866.

  96. B.-H. Liou, C.-M. Chen, R.-H. Horng, Y.-C. Chiang, and D.-S. Wuu, ”Improvement of thermal management of high-power GaN-based light-emitting diodes”, Microelectronics Reliability, Vol. 52, pp. 861-865 (2012).

  97. M. H. Wu, S. P. Chang, S. J. Chang, R. H. Horng, W. J. Liao, R. M. Lin, “Characteristics of GaN/InGaN Double-Heterostructure Photovoltaic Cells”. INTERNATIONAL JOURNAL OF PHOTOENERGY , 2012  (SCI) IF=1.769 CHEMISTRY, PHYSICAL=57.463ENERGY & FUELS=45.679OPTICS=32.911PHYSICS, ATOMIC, MOLECULAR & CHEMICAL=54.545

  98. Ray-Hua Horng, Re-Ching Lin c, Yi-Chen Chiang, Bing-Han Chuang, Hung-Lieh Hu, Chen-Peng Hsu, “Failure modes and effects analysis for high-power GaN-based light-emitting diodes package technology”, Microelectronics Reliability, Vol. 52, pp. 818-821(2012).

  99.   Ming-Chun Tseng, Ray-Hua Horng, Fan-Lei Wu, Snin-Nan Lin, Hsin Her Yu, and Dong-Sing Wuu, “Crystalline Quality and Photovoltaic Performance of InGaAs Solar Cells Grown on GaAs Substrate with Large Misoriented Angle,” Vacuum, Vol. 86, no. 7, pp. 843-847, (2012) (IF: 1.051) (Ranking: 118/225= 52.44%).

  100. Mao, HY, Wuu, DS, Wu, BR, Lo, SY, Hsieh, HY, Horng, RH “Hot-wire chemical vapor deposition and characterization of p-type nanocrystalline SiC films and their use in Si heterojunction solar cells”, THIN SOLID FILMS , 520, Pages: 2110-2114(2012/ JAN., IF:1.905).

Books

  1. ECS Tansactions, vol 45, issue 7, (2012) “Wide-Bandgap Semiconductor Material and Device 13” , Editors: E. B. Stokes, R. H. Horng, G. W. Hunter, Z. Karim, Z. Mi, C. O’Dwyer., Published by : The Electrochemical Society.

  2. R. H. Horng: "Effects of Annealing on Structural and Optical Properties of Single Crystalline Ga2O3 Epilayers", pp. 29-38, Chapter 3 of the book: "Physics and Mechanics of New Materials and their Applications" , published by: Nova Science Publishers, 2013. 

  3. R. H. Horng: "Fabrication of nitride LEDs", pp. 181-212, Chapter 6 of the book: "Nitride semiconductor light- emitting diodes (LEDs)" edited by JianJang Huang, Hao-Chung Kuo and Shyh-Chiang Shen, published by: Woodhead Publishing Limited, 2014.

  4. Ray-Hua Horng, Sin-Liang Ou and Dong-Sing Wuu, "Gallium Nitride: Structure,Thermal Properties and Applications " published by: Nova Science Publishers, 2014, " Improvement in Heat Dissipation Capability of GaN-Based Light-Emitting Diodes ", ISBN: 978-1-63321-387-6.

  5. Ray Hua Horng, "Handbook of Advanced Lighting Technology", published by Springer, "Thin-GaN LED material", 2015.

Conferences

  1. Ray-Hua Horng, “Development of Thin film LEDs by Wafer Bonding and Epilayer Transferring Technologie”, APSMR 2019 Annual Meeting, July 26-29, Hokkaido, Japan.

  2. Ray-Hua Horng, Ci-Ming. Jhang, and Dong-Sing Wuu, “ Technology Development of advanced microLED Displays”, OSK-OSA-OSJ Joint Symposia,  July 14-17, 2019, BEXCO, Busan, South Korea.

  3. Ray-Hua Horng, ShreeKant Sinha, Hsiang-An Feng, Cheng-Yu Chung, and Chia-Wei Tu, “Novel Composite Substrates for Thin Film AlGaInP-based High Power LEDs”, CSW May 19-23, Nara, Japan.

  4.  

  5. L. H. Lai, F. G. Tarntair, Y. C. Shen, W. Z. Li, M. R. Wu, J. Y. Dong, J. J. Yu and R. H. Horng, “Epitaxial ZnGa2O4 thin film growth by MOCVD for DUV photo-detectors“台灣磊晶技術研討會, 龍潭, 中科院, May 27-28, 2019.

  6. Chen-Po Li, Ray-Hua Horng, "Performance improvement of n-side up AlGaInP thin-film LEDs by transferring to copper invar copper substrate", OPTIC 2018, National Chiao Tung University, Tainan, Taiwan, Dec 5-7, 2018.

  7. R. H. Horng, S. S. Yan, D. S. Wuu, “Fabicration and Characterization of Monolithic GaN-based Micro LED Display, OPTIC 2018, National Chiao Tung University, Tainan, Taiwan, Dec 5-7, 2018.

  8. Ching-Ho Chen, Jia-Jhen Jhen, Dong-Sing Wuu and Ray-Hua Horng, "Performance comparisons of n-up AlGaAs- and p-up GaInP-based light-emitting thyristors with and without indium iin oxide transparent tonductive layers", OPTIC 2018, National Chiao Tung University, Tainan, Taiwan, Dec 5-7, 2018.

  9. Shreekant1, Ray-Hua Horng, "Development, Fabrication and Feasibility assessment of AlGaInP-Based Red LEDs using Composite Metal Substrate for Ultra High Power, 台灣真空年會, 中正大學, 嘉義, Nov. 2, 2018.

  10. R. H. Horng, Y. C. Lai and D. S. Wuu, "Improving light extraction of deep UV-LED with nano patterned sapphire substrate by nanoimprinting technology", IWN, Kanazawa, Japan, November 11–16, 2018.

  11. M. R. Wu, W. C. Li, Y. C. Shen and R. H. Horng, “Electrodes effect on performance of ZnGa2O4 gas sensor” 10th International Workshop on Znic Oxide and Other Oxide Semiconductors; IWZnO -2018, Warsaw, Polan, Sep. 14-17, 2018 (Oral)

  12. Yuan-Chu Shen, Min-Ru Wu , Wei-Zhong Li, Chiung-Yi Huang , Ray-Hua Horng, “Electrode material effect on performance of gas sensor based on ZnGa2O4 epilayer grown by MOCVD”, 10th International Workshop on Znic Oxide and Other Oxide Semiconductors; IWZnO -2018, Warsaw, Polan, Sep. 14-17, 2018 (Poster)

  13. R. H. Horng1, M. C. Tseng and  D. S. Wuu, “Thin Film Characteristics of ZnO and AZO Grown via Atomic Layer Deposition”, 10th International Workshop on Znic Oxide and Other Oxide Semiconductors; IWZnO -2018, Warsaw, Polan, Sep. 14-17, 2018 (Poster)

  14. Ray-Hua Horng , Yu-Tin Tsaiand and Dong-Sing Wuu, “Study on Flip-Chip AlGaInP Red LEDs for micro LED Applications”, 2018 IMID, Busan,  Korea, Aug. 28-31, 2018. (Oral)

  15. You-Cheng Lin, Fu-Gow Tarntair, Kuei-Yuan Cheng,and Ray-Hua Horng, “Enhanced Light Extraction Red LEDs by Surface Texture Process,” 2018 IMID, Busan,  Korea, Aug. 28-31, 2018. (Poster)

  16. Cheng-Po Li, Dong-Sing Wuu  and Ray-Hua Horng, “Performance Improvement by Copper Invar Copper Substrate for N-side up AlGaInP-based LED”, 2018 IMID, Busan,  Korea, Aug. 28-31, 2018. (Poster)

  17. Ray-Hua Horng , Si-Han Tsai and Chiung-Yi Huang , “Thermal annealing effect on material and photoelectric characteristics of ZnGa2O4 epilayer grown by MOCVD”, 海峽兩岸光電子研討會, 香港中文大學, May 2-6, 2018.

  18. Ray-Hua Horng , Ken-Yen Chen , Huan-Yu Chien, Shih-Siang Yan, “Processing and characterization of high resolution AlGaInP base micro LED Display”, 2018 Photonic West, San Francisco, USA, Jan. 28-Feb. 1, 2018.

  19. Ray-Hua Horng , Chun-Han Ku, Ching-Ho Tien, and Dong-Sing Wuu, “P Enhanced Light Extraction of Near-Ultraviolet Light-Emitting Diodes Using Laser Scribing Technology”, 2018 Photonic West, San Francisco, USA, Jan. 28-Feb. 1, 2018.

  20. Ray-Hua Horng , Epitaxial Growth of a New Wide Band-gap Semiconductor ZnGa2O4, 2018 Photonic West, San Francisco, USA, Jan. 28-Feb. 1, 2018. (Invited speaker)

  21. S. S. Yan, H. Y. Chien, K.Y. Chen , D. S. Wuu, and R. H. Horng, “Study on Fabrication of Fine-Pitch Red Micro-LED Displays”, OPTIC 2017, Dec. 7-9, Kaoshung, National SunYat-Sen Univ., Taiwan, 2017.(最佳學生論文獎)

  22. Y. C. Kao, Y. H. Fu, D. S. Wuu, and R. H. Horng, “Processing development and properties study of parallel-type thin film GaAs solar cells”, OPTIC 2017, Dec. 7-9, Kaoshung, National SunYat-Sen Univ., Taiwan, 2017.

  23. Y. C. Lai, Y. Y. Zeng, C. H. Tien, D. S. Wuu, and R. H. Horng, “Investigations of Zn-Incorporated β-Ga2O３films grown by MOCVD on the optoelectronic properties of deep- ultraviolet light emitting diode”OPTIC 2017, Dec. 7-9, Kaoshung, National SunYat-Sen Univ., Taiwan, 2017.

  24. Li-Chung Cheng, Chiung-Yi Huang and Ray-Hua Horng, “"Thickness Effect on the Characteristics of ZnGa2O4 Transistor”, Workshop on Ga2O3 and Related Materials, Parma (Italy), September 12-15, 2017

  25. Ray-Hua Horng, “Characteristics of Ultraviolet Photodetectors Based on N Incorporation Ga2O3 with and without Thermal Annealing”, Workshop on Ga2O3 and Related Materials, Parma (Italy), September 12-15, 2017.

  26. Si-Han Tsai, Chiung-Yi Huang and Ray-Hua Horng, “Solar-blind photodetectors based on epitaxial ZnGa2O4 thin film”, Workshop on Ga2O3 and Related Materials, Parma (Italy), September 12-15, 2017.

  27. Ching-Ho Tien , Chen-Hao Kuo , Dong Sing Wuu and Ray-Hua Horng, “Study of High-Voltage Ultraviolet AlGaN Light Emitting Diode”, IMID, Busan, Korea, Aug. 29-31, 2017.

  28. Li-Chung Cheng, Chiung-Yi Huang and Ray-Hua Horng, “"Thickness Effect on the Characteristics of ZnGa2O4 Transistor”, Workshop on Ga2O3 and Related Materials, Parma (Italy), September 12-15, 2017Ching-Ho Tien , Chen-Hao Kuo , Dong Sing Wuu and Ray-Hua Horng, “Study of High-Voltage Ultraviolet AlGaN Light Emitting Diode”, IMID, Busan, Korea, Aug. 29-31, 2017.

  29. Ray-Hua Horng, Yu-Yuan Zeng, Ching-Ho Tien, Chia-Lung Tsai, Yi-Keng Fu, Wei-Hung Kuo and Dong-Sing Wuu, “Study on ITO/ZGO Ultraviolet-Transparent Films for Deep-Ultraviolet Light-Emitting Diodes Applications”, 24th Congress of the International Commissionfor Optics (ICO-24), in Tokyo, Japan, Aug. 21-24, 2017.

  30. Ray-Hua Horng, Yu-Yuan Zeng, Ching-Ho Tien, Chia-Lung Tsai, Yi-Keng Fu, Wei-Hung Kuo and Dong-Sing Wuu, “Highly Ultraviolet-Transparent ITO/ZGO Contact Layers for AlGaN Deep-Ultraviolet Light-Emitting Diodes”, International Conference on Nitride Semiconductors-12( ICNS-12), Strasbourg, France, June 23-28, 2017.

  31. Ray-Hua Horng, Chiung-Yi Huang, Sin-Liang Ou, Tzu-Kuang Juang and Po-Liang Liu, “ZnGa2O4: A new deep ultraviolet semiconductor candidate”, IFFM, Jeju, Korea, June 17-27, 2017.

  32. Ray-Hua Horng,  Ming-Chun Tseng, Yu-Jie Chen, Ching-Ho Chen, and Dong-Sing Wuu, “Performance Comparisons of Light-Emitting Thyristor with Indium Tin Oxide Transparent Conductive Layers”, Compound Semiconductor Week 2017 (CSW 2017), May 13-19, Berlin, German.

  33. Ray-Hua Horng, Wei-Yu Tseng , Ken-Yen Chen , Yu-Ting Tsai, and Huan-Yu Chien “Characteristic improvement of red-light AlGaInP-based flip-chip micro LEDs”, Compound Semiconductor Week 2017 (CSW 2017), May 13-19, Berlin, German.

  34. Ray-Hua Horng , Chen-Hao Kuo, Ching-Ho Tien,  Dong-Sing Wuu, “Study on AlGaN- Based High-Voltage Ultraviolet Light-Emitting Diodes for White Light Applications”, The 6th Laser Display and Lighting Conference 2017 (LDC'17), Yokohama, Japan, Apr. 18 - Apr. 21, 2017.”

  35. Ray-Hua Horng, Ming-Chun Tseng, Dong-Sing Wuu, and  Hsin-Ying Lee, “Nanorods Effect on the Performance of  p-Side-up Thin-Film AlGaInP LEDs”, ISPlasma 2017, March 1-5, Japan, Aichi.

  36. Ray-Hua Horng, Chen-Hao Kuo, Ching-Ho Tien and Dong-Sing Wuu, “Study on AlGaN- Based High-Voltage Ultraviolet Light-Emitting Diodes for White Light Applications”, April 19-21, 2017, LDC 2017 Optics & Photonics International Congress 2017, Pacifico- Yokohama, Yokohama, Japan. (Oral).

  37. Ray-Hua Horng, Fan-Lei Wu and Sin-Liang Ou, “ZnGa2O4: A new deep ultraviolet semiconductor candidate”, IFFM,June 27-29, 2017, Jeju, Korea.(Invited speaker)

  38. Yu-Jie Chen, Ching-Ho Chen, Ming-Chun Tseng, and Ray-Hua Horng, “Effect of Indium Tin Oxide Film on the Performance of Thyristor Light Emitting Diode”, OPTIC 2016, Dec. 3-5, Taipei, Taiwan.

  39. Ray-Hua Horng, “Performance enhancement of optoelectronic devices using transparent conductive electrodes”, 8thVacuum and Surface Sciences Conference of Asia and Australia(VASSCAA-8) and IVC-20, Aug. 22-26, 2016, Busan, Korea. (Invited speaker)

  40. Ray-Hua Horng and Chih-Tung Yeh, "Fabrication of E-Mode AlGaN/GaN HEMT", Annual meeting of PSROC2016, Jan. 25-27, 2016, Kaoshung, National SunYat-Sen Univ., Taiwan. (Invited speaker)

  41. Ray-Hua Horng, Fan-Lei Wu and Sin-Liang Ou, “Development of Epitaxial Lift-off Technology for Thin-Film GaAs Solar Cell Applications”, IFFM,June 24-26, 2015, Jeju, Korea.(Invited speaker)

  42. Ming-Chun Tseng, Ming-Hsien Hung, Dong-Sing Wuu and Ray-Hua Horng, " Effects of Interface State Traps on Performance of MOS-HEMTs", ISNE 2015, May 4-6, 2015, NTUST campus, Taipei, Taiwan.(Invited speaker)

  43. Ray-Hua Horng, “Effects of CF4 Plasma Treatment on  Characteristics of Enhancement Mode AlGaN/GaN High Electron Mobility Transistors”, 2015 International Symposium on Surface Engineering based Convergence Science & Technology (SECST2015), Aug. 25-26, Changwon, Korea. (Invited speaker)

  44. Ming-Chun Tseng,  Chi-Lu Chen, Nan-Kai Lai, Dong-Sing Wuu, Hsin-Ying Lee, Yu-Chang Lin, and Ray-Hua Horng, “Effect of AZO Current Spreading Layer on P-side-up Thin-Film AlGaInP-Based LEDs”ISSLED 2014, Dec. 14-19, 2014, Kaoshung, National SunYat-Sen Univ., Taiwan.

  45. Yu-Cheng Kao, Sin-Liang Ou, Fan-Lei Wu, Ray-Hua Horng and Ming-Chun Tseng, "Effect of thermal annealing on the epilayer quality, surface roughness, and device performance of InGaAs solar cells ", VASSCAA-7, HsingChu, Taiwan, Oct. 5-9, 2014.

  46. Ray-Hua Horng, Chin-Yi Huang, and Dong Sing Wuu, " Effects of structural properties and morphologies of Ga‐doped ZnO thin films on their optoelectronic characteristics", "Science & Applications of Thin Films, Conference & Exhibition (SATF 2014)", Cesme, Izmir, Turkey, September 15‐19, 2014 (Invited speaker).

  47. Ray-Hua Horng, Hsu-Hung Hsueh, Sin-Liang Ou, Chiao-Yang Cheng and Dong-Sing Wuu, “Growth Mechanism of GaN Epilayer on Cone-Shaped Patterned Sapphire Substrates with Modified Top-Tip,” International Workshop on Nitride Semiconductors (IWN 2014), Wrocław, Poland, Aug. 24-29, 2014.

  48. Ming-Chun Tseng, Ming-Hsien Hung, Po-Rung Lin, and Ray-Hua Horng, "Effects of carbon-doped GaN on performance of AlGaN/GaN/SiC HEMTs" International Workshop on Nitride Semiconductors (IWN 2014), Wrocław, Poland, Aug. 24-29, 2014.

  49. Sin-Liang Ou, Hsu-Hung Hsueh, Ray-Hua Horng, and Dong-Sing Wuu, “InGaN LEDs Using Chemical Lift-Off from a GaN/Sapphire Template with an AlN/Patterned-SiO2 Sacrificial Layer,” 2014 Laser Display Conference, National Chung Hsing University, Taichung, Taiwan, 19-20 June, 2014

  50. Hsu-Hung Hsueh, Sin-Liang Ou, Dong-Sing Wuu, and Ray-Hua Horng, “InGaN LED Fabricated on Eco-GaN Template with a Ga2O3 Sacrificial Layer for Chemical Lift-Off  Application,” The 3rd International Symposium on Next Generation Electronics (ISNE 2014 Chang Gung University in Taoyuan, Taiwan ), Taoyuan, Taiwan, 7-10 May,2014

  51. Ray-Hua Horng,1* Kun-Ching Shen,2 Chao-Yu Pai,1 and Dong-Sing Wuu, " The performance of GaN LEDs using an embedded finger-type contact ", SPIE photonic west, Feb. 1-7, San Francisco, UAS. 2014.

  52. Ray-Hua Horng, Shih-Hao Chuang, Cheng-Sheng Tsung, Ching-Ho Chen, Cheng-Yi Lin, Feng-Yeh Chang, Dong-Sing Wuu, " Study of surface plasmons at the metal/ semiconductor interface "SPIE photonic Europe, April 14-17, Brussels, Belgium, 2014.

  53. R.H.Horng, C.L.Chen, B.R.Wu1, Ching-Ho Tien, and D.S. Wuu, “ncreasing the extraction efficiency of p-side up AlGaInP LEDs via roughened transparent conductive layer”, International Union of Materials Research Societies-International Conference on Electronic Materials 2014(IUMRS-ICEM 2014), TWTC Nangang Exhibition Hall, Taipei, TAIWAN; 10-14 June, 2014.

  54.  Ray-HuaHorng, Chi-Feng Weng, Bing-Rui Wu, Sin-Liang Ou, and Dong-Sing Wuu, "Improvement in Light Extraction of P-side up AlGaInP-based LEDs by Surface Roughening," Optic2013, 2013-SAT-P0802-P023, Zhongli, Taiwan, (5-7, Dec. 2013).

  55. Ray-HuaHorng,Chi-Feng Weng, “P-side up Thin Film AlGaInP-Based Light Emitting Diodes with Mesh Patterned Ohmic Contact”, 223th ECS meeting, Toronto, Canada, 2013.

  56. R.H. Horng and P. Ravadgar, "Study of Photoresponsivity in Optoelectronic Devices Based on Single Crystal β-Ga2O3 Epitaxial Layers", SPIE photonic west, Feb. 2-7, San Francisco, UAS. 2013.

  57. Fan-Lei Wu*a, Ray-Hua Hornga, Jian-Heng Lua, Chun-Li Chenb, Yu-Chenga Kao, " Improvement in Etching Rate for Epilayer Lift-Off with Surfactant", SPIE photonic west, Feb. 2-7, San Francisco, UAS. 2013.

  58. R. H. Horng, F. L. Wu, M. C. Tseng, „Improvement in Etching Rate for Epilayer Lift-Off Application with Low Surface Tension Fluid”, 222 ECS meeting, Honolulu, Hawaii, USA, Oct. 7-12, 2012.

  59. Ray-Hua Horng, “Multi-chip high-power LEDs with cup-shaped copper heat spreader for general lighting applications”, International Conference on Electronic Materials and Nanotechnology for Green Enviroment , 16 - 19 Sept. 2012, Jeju Korea.(轉投並刊登Optics Express Vol. 20, Iss. S5, pp. A597–A605 (2012))

  60. Ray-Hua Horng and Yu-Wei Kuo, “Process Development of GaN Light-Emitting Diodes with Imbedded Contacts”, 2012 SPIE Optical Engineering + Applications, 12-16 August 2012 in San Diego, CA United States. (轉投並刊登Optics Express , accept, in press (2012))

  61. Ray-Hua Horng "High-yield thin GaN LED using metal bonding and laser lift-off technology," 2012 SPIE Optical Engineering + Applications which will be held 12-16 August 2012 in San Diego, CA United States. ((轉投並刊登Appl. Phys. Lett. 101, 171102-1~4 (2012)).

  62. Ray-Hua Horng, “ Process Development of High Bright InGaN LEDs with Imbedded Contacts”, Int'l LED and Green Lighting Seminar 2012, June 27, 28, Korea. (Invited speaker)

  63. Ray-Hua Horng, Ming-Chun Tseng, Wen-Yih Liao, Tsung-Yen Tsai, “Fabrication and Characterization of Thin InGaN Solar Cells by Epilayer Transferring Technologies”, NSAP-2012, May 10-12, 2012.(Invited speaker)

  64. Ray-Hua Horng, Kun-Ching Shen, Jia-Hua Lin, Yu-Wei Kuo, and Dong-Sing Wuu, “Effects of cell distance on the performance of GaN high-voltage light emitting diodes”, 221 ECS meeting, Seattle, WA, USA, May 6-12, 2012. (Invited speaker)

  65. C. Pan, D. S. Wuu, H. S Hsueh, and R. H. Horng, “Chemical lift-off of blue light-emitting diodes grown on sapphire substrate with an oxide-patterned sacrificial layer”, 221 ECS meeting, Seattle, WA, USA, May 6-12, 2012.

  66. P. Ravadgar, R. H. Horng, and T. Y. Wang, “Healing of Surface States and Point Defects in Single-Crystalline β-Ga2O3 Epilayer”, 221 ECS meeting, Seattle, WA, USA, May 6-12, 2012.

  67. Ray-Hua Horng, Tzu-Yu Wang, Sin-Liang Ou, Dong-Sing Wuu,” Characteristic and Formation Mechanism of InGaN (0.33<In<0.62) Grown on Different Substrate by Pulse Laser Deposition”, The 59th spring meeting 2012, Japan Society of Applied Physics English Session 6.4 thin film/new materials, Waseda, Tokyo, Japan, March 15-18, 2012.

  68. Yu-Wei Kuo and Ray-Hua Horng, “Study on Electrodeless LEDs for LCD Backlight applications”, 2012 Taiwan Display Conference, Taiwan, April 17,18, 2012.

  69. Parvaneh Ravadgar and Ray-Hua Horng, 'Metal-Semiconductor-Metal Deep Ultraviolet Detector Based on Single Crystal β-Ga2O3 epilayer”, the 3rd Power Electronics, Drive Systems & Technologies Conference , Tehran, IRAN from February 15-16, 2012.

  70. Ray-Hua Horng, Jia-Hua Lin, Dong-Sing Wuu, Re-Ching Lin,  and Kun-Ching Shen, “High-Voltage Thin GaN LEDs Array”, 2012 SPIE, Jan. 21-26, San Francisco, UAS. (Invited speaker)

  71. R. H. Horng, D. S. Wuu, S. L. Ou, H. H. Hsueh, “Study on GaN Epilayer Transferring to Cu Substrate from Sapphire Substrate Using Ga2O3 Sacrificial Layer”, 2012 SPIE, Jan. 21-26, San Francisco, UAS.

  72.  S.L.Ou, D.S. Wuu, Y.C. Fu, T.Y. Wang, R. H. Horng, “Growth and characterization of Ga2O3 on sapphire substrates for UV sensor applications (Invited Paper), 2012 SPIE Photonics West, Jan. 22-25, San Francisco, USA.

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