The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room A (Crystal Ballroom A) Session Title: [MOA1] 01. Growth and Characterization : Al-containing Structures Date: May 18, 2015 (Monday) Time: 13:30 ~ 14:55 [MOA1-1] 13:30 ~ 13:55 [Invited] Epitaxial Growth, Characterization, and Devicesof InAlN Jae-Hyun Ryou [MOA1-2] 13:55 ~ 14:10 Electrical properties of extremely low-resistivity and high-carrierconcentration Si-doped AlGaN with low AlN molar fraction Kunihiro Takeda, Kazuki Mori, Toshiki Kusafuka, Motoaki Iwaya, Tetsuya Takeuchi, Satoshi Kamiyama, and Isamu Akasaki [MOA1-3] 14:10 ~ 14:25 High p-typeconductivity implement in high Al content AlGaN via introducingthree-dimensional Mg-doped superlattices Tongchang Zheng, Wei Lin, Shuping Li, and Junyong Kang [MOA1-4] 14:25 ~ 14:40 Optimization of growth condition of conductiveAlGaN layer with high Al content Toshiki Yasuda, Syouta Katsuno, Tetsuya Takeuchi, Motoaki Iwaya, Satoshi Kamiyama, Isamu Akasaki, and Hiroshi Amano [MOA1-5] 14:40 ~ 14:55 Growth of AlN layer on sputtered AlN template substrate by hydride vapor phase epitaxy Shinya Tamaki, Daiki Yasui, Hideto Miyake, Kazumasa Hiramatsu, Motoaki Iwaya, Isamu Akasakai, and Hiroshi Amano The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room B (Crystal Ballroom B) Session Title: [MOB1] 04. Fabrication of Hybrid Structures Date: May 18, 2015 (Monday) Time: 13:30 ~ 14:50 [MOB1-1] 13:30 ~ 13:55 [Invited] Ultra low threshold lasing from III-nitride nano/micro structures Tao Wang [MOB1-2] 13:55 ~ 14:20 [Invited] Feasibility of Inorganic Flexible Devices Prepared by Pulsed Sputtering Hiroshi Fujioka, Kohei Ueno, Atsushi Kobayashi, and Jitsuo Ohta [MOB1-3] 14:20 ~ 14:35 Fabrication and Performance of GaN-based UV-LEDs on AlSi Substrate Ray-Hua Horng, Guan-Cheng Chen, Sin-Liang Ou, and Dong-Sing Wuu [MOB1-4] 14:35 ~ 14:50 High Color Rendering Index HybridIII-Nitride/Nanocrystals White Light-Emitting Diodes Bin Liu, Zhe Zhuang, Xu Guo, Fengrui Hu, Yi Li, Tao Tao, Jiangping Dai, Ting Zhi, Zili Xie, Dunjun Chen, Peng Chen, Haixiong Ge, Xiaoyong Wang, Min Xiao, Rong Zhang, and Youdou Zheng The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room A (Crystal Ballroom A) Session Title: [MOA2] 07. Luminescence Properties Date: May 18, 2015 (Monday) Time: 15:10 ~ 16:30 [MOA2-1] 15:10 ~ 15:35 [Invited] Plasmonics Towards High-Efficiency Light- EmittingDevices Koichi Okamoto [MOA2-2] 15:35 ~ 16:00 [Invited] Complex Nitrogen Doping for P-type ZnO Dezhen Shen, Zhenzhong Zhang, and Lei Liu [MOA2-3] 16:00 ~ 16:15 TemperatureDependent Al0.25Ga0.75N/AlN/GaNand Spontaneous Polarization in Al0.83In0.17N/AlN/GaN Heterostructures Yong Xiang, Tongjun Yu, Xingbin Li, Fujun Xu, Xuelin Yang, Zhijian Yang, Bo Shen, and Guoyi Zhang [MOA2-4] 16:15 ~ 16:30 Study of luminescence properties in graphenequantum dots prepared by graphite intercalate compound and their optical deviceapplication Min-Ho Jang, Sung Ho Song, Jin Chung, Sung Hawn Jin, Bo Hyun Kim, Seung-Hyun Hur, Seunghyup Yoo, Seokwoo Jeon, and Yong-Hoon Cho The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room B (Crystal Ballroom B) Session Title: [MOB2] 05. Devices for Energy Harvesting Date: May 18, 2015 (Monday) Time: 15:10 ~ 16:30 [MOB2-1] 15:10 ~ 15:35 [Invited] Nano-helical photoelectrodes for efficient energy harvesting applications Jong Kyu Kim [MOB2-2] 15:35 ~ 16:00 [Invited] Solar Energy Harvesting Utilizing Low Dimensional Nanostructures Yu-Lun Chueh [MOB2-3] 16:00 ~ 16:15 Characteristic of nitrogen doping reduced graphene oxide (NrGO) for using photovoltaic device min Han, Beo Deul Ryu, Jung Hwan Hyung, Kang Bok Ko, Ko Ku Kang, Young Jae Park, and Chang Hee Hong [MOB2-4] 16:15 ~ 16:30 Efficient doping of graphene by MoO3 and its application to graphene-based solar cells Chandramohan Samygounder, Tae Hoon Seo, Janardhanam Vallivedu, JungHwan Hyung, Chel-Jong Choi, Chang-Hee Hong, and Eun-Kyung Suh The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room A (Crystal Ballroom A) Session Title: [TUA1] 01. Growth and Characterization : Defect Analysis and Control Date: May 19, 2015 (Tuesday) Time: 09:00 ~ 10:25 [TUA1-1] 09:00 ~ 09:25 [Invited] Multi-scale characterization of defects in nitride semiconductor materials Akira Sakai [TUA1-2] 09:25 ~ 09:40 Wafer bowing reduction of GaN heteroepitaxial grown on Si (111) substrate with graphene oxide pattern Chang Hee Hong, Tran Viet Cuong, and Jin Joo [TUA1-3] 09:40 ~ 09:55 Effect of annealing on the defect related emission in GaN grown on Si substrate Hiroyuki Kobayashi, Takanori Yagi, Ryosuke Tanabe, Takumi Kanematsu, Hiroyuki Iwata, Nobuhiko Sawaki, Masashi Irie, Yoshio Honda, and Hiroshi Amano [TUA1-4] 09:55 ~ 10:10 Growth of AlGaN/GaN heterostructures on Si using multiple step-graded AlGaN layers and one AlGaN superlattice as buffer layer Jinyu Ni [TUA1-5] 10:10 ~ 10:25 Epitaxialgrowth of m-plane (10-10) GaN films on (100) γ-LiAlO2 substrates by chemicalvapor deposition Meng Chieh Wen, Chenlong Chen, Chun Yu Lee, and Mitch M.C. Chou The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room B (Crystal Ballroom B) Session Title: [TUB1] 02. Optoelectronic Devices : Application of Plasmonic Structure Date: May 19, 2015 (Tuesday) Time: 09:00 ~ 10:25 [TUB1-1] 09:00 ~ 09:25 [Invited] Progress of GaN-based Terahertz Quantum Cascade Laser Hideki Hirayama, Wataru Terashima, Shiro Toyoda, and Norihiko Kamata [TUB1-2] 09:25 ~ 09:40 Optical properties of modified light-emittingdiodes structures using localized surface plasmons Jin Hyeon Yun, Han Su Cho, Kang Bin Bae, and In Hwan Lee [TUB1-3] 09:40 ~ 09:55 A novel plasmonic nanostructure for nitride LED application Dong-Sing Wuu, Shih-Hao Chuang, Ching-Ho Chen, and Ray-Hua Horng [TUB1-4] 09:55 ~ 10:10 Enhanced characteristics of InGaN/GaN green light-emitting diodes with porous structures by photo-electrochemical etching Han-Su Cho, Kyeong-Seob Kwon, Myeong-Ji Dong, Jin-Woo Ju, JongHyeob Baek, and In-hwan Lee [TUB1-5] 10:10 ~ 10:25 Cathodoluminescenceenhancement coupling of multiple quantum of wells green LED withlocalized through surface plasmon in Ag hexagonal arrays Shuang Jiang, Zhizhong Chen, Yulong Feng, Qianqian Jiao, Junze Li, Shengxiang Jiang, Jian Ma, Yifan Chen, Tongjun Yu, and Guoyi Zhang The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room A (Crystal Ballroom A) Session Title: [TUA2] 01. Growth and Characterization : Optical and Structural Properties Date: May 19, 2015 (Tuesday) Time: 11:00 ~ 12:25 [TUA2-1] 11:00 ~ 11:25 [Invited] In situ X-ray diffraction analysis of GaInN/GaN heterostructure (Tentative) Motoaki Iwaya [TUA2-2] 11:25 ~ 11:40 Optical polarization properties of nonpolar InGaN films measured by polarization-resolved photoluminescence excitation spectroscopy Ryohei Maeda, Shigeta Sakai, Atsushi A. Yamaguchi, Kaori Kurihara, and Satoru Nagao [TUA2-3] 11:40 ~ 11:55 Polarity inversion of GaN by group-III source preflow in metalorganic chemical vapor deposition Chengguo Li, Hongfei Liu, and Soo Jin Chua [TUA2-4] 11:55 ~ 12:10 Energy Migration between Eu Luminescent Sites in Eu-Doped GaN Yasufumi FUJIWARA, Ryuta WAKAMATSU, Dolf TIMMERMAN, and Atsushi KOIZUMI [TUA2-5] 12:10 ~ 12:25 Growth and characterization of InN on α-In2O3/sapphire by RFMBE Nao Masuda, Akira Buma, Tsutomu Araki, Yasushi Nanishi, Masaya Oda, and Toshimi Hitora The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room B (Crystal Ballroom B) Session Title: [TUB2] 02. Optoelectronic Devices : Carrier Dynamics Date: May 19, 2015 (Tuesday) Time: 11:00 ~ 12:25 [TUB2-1] 11:00 ~ 11:25 [Invited] Advances on Visible-blind and Solar-blind Photodetectors based on Wide Bandgap Semiconductors Hai Lu, dunjun Chen, Rong Zhang, and Youdou Zheng [TUB2-2] 11:25 ~ 11:40 Carrier Dynamics in InGaN-Based Light-Emitting Diodes Studied by Differential Carrier Lifetimes Dong-Soo Shin, Dong-Pyo Han, Young-Jin Kim, and Jong-in Shim [TUB2-3] 11:40 ~ 11:55 Change in Forward-Voltage Characteristics Due to Carrier Overflow in InGaN-Based Light-Emitting Diodes Dong-Pyo Han, Hyunsung Kim, Dong-Soo Shin, and Jong-in Shim [TUB2-4] 11:55 ~ 12:10 Alleviated efficiency droop in InGaN/GaN multiple quantum wells light-emitting diodes by trapezoidal quantum barriers Sang-Jo Kim, Seong-Ju Park, Kwang Jae Lee, and Jae-Joon Kim [TUB2-5] 12:10 ~ 12:25 U-shape phenomenon in theefficiency-versus-current curves in AlGaN-based deep-ultraviolet light-emittingdiodes Jun-Hyuk Park, Guan-Bo Lin, Dong Yeong Kim, Jong Won Lee, Jaehee Cho, Jungsub Kim, Jong Kyu Kim, and E. Fred Schubert The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room A (Crystal Ballroom A) Session Title: [TUA3] 01. Growth and Characterization : Various Substrates Date: May 19, 2015 (Tuesday) Time: 13:30 ~ 14:55 [TUA3-1] 13:30 ~ 13:55 [Invited] Growth and characterization of low-dislocation density 2~4inch GaN substrate by HVPE (Tentative) Ke Xu [TUA3-2] 13:55 ~ 14:10 A new approach to compliant substrate for epitaxial growth of GaN Daeyoung Moon, Jeonghwan Jang, Daehan Choi, In-Su Shin, Donghyun Lee, Dukkyu Bae, Yongjo Park, and Euijoon Yoon [TUA3-3] 14:10 ~ 14:25 Extremely smooth surface and strain relaxation in GaNepilayers grown on hemispherical nanoscale patterned sapphire substrate by MOCVD Junze Li and Zhizhong Chen [TUA3-4] 14:25 ~ 14:40 Growth of high quality and less strained GaN on cavity engineered sapphire substrate Jeonghwan Jang, Daeyoung Moon, HyoJeong Lee, Donghyun Lee, Daehan Choi, Dukkyu Bae, Hwankuk Yuh, youngboo moon, Yongjo Park, and Euijoon Yoon [TUA3-5] 14:40 ~ 14:55 InGaN-basedlight-emitting diodes with pit expansionlayers composed of only SL ormiddle-temperature-grown GaN layer. Kohei Sugimoto, Narihito Okada, and kazuyuki Tadatomo The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room B (Crystal Ballroom B) Session Title: [TUB3] 02. Optoelectronic Devices : Improvement of Light Extraction Date: May 19, 2015 (Tuesday) Time: 13:30 ~ 14:55 [TUB3-1] 13:30 ~ 13:55 [Invited] Widegap semiconductor lasers with micro/nano- scalearchitectures Tien-chang Lu [TUB3-2] 13:55 ~ 14:10 Study on the irradiative recombination and light extraction from the GaN-based nanorod array LEDs Qianqian Jiao, Zhizhong Chen, Yulong Feng, Shuang Jiang, Junze Li, Shengxiang Jiang, Shunfeng Li, and Guoyi Zhang [TUB3-3] 14:10 ~ 14:25 Enhanced light extraction efficiency for GaN-based LEDs by nano-void structured reflector Semi Oh, Kab Ha, Kwang Jae Lee, Sang-Jo Kim, Jae-Joon Kim, Kyoung-Kook Kim, and Seong-ju Park [TUB3-4] 14:25 ~ 14:40 High-performance photoconductivity and electrical transport of ZnO/ZnS core/shell nanowires for multifunctional nanodevices Sehee Jeong, Minhyeok Choe, Jang-Won Kang, Min Woo Kim, Wan Gil Jung, Young-Chul Leem, Jaeyi Chun, Bong-Joon Kim, and Seong-Ju Park [TUB3-5] 14:40 ~ 14:55 Fabrication of GaN light-emitting diodes withreduced graphene oxide current-spreading layer Beo Deul Ryu, Min Han, Kang Bok Ko, Young Jae Park, Jung-Hwan Hyung, Ko Ku Kang, Jaehee Cho, and Chang-hee Hong The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room A (Crystal Ballroom A) Session Title: [TUA4] 01. Growth and Characterization : Special Materials and Structures Date: May 19, 2015 (Tuesday) Time: 15:10 ~ 16:25 [TUA4-1] 15:10 ~ 15:25 Growth and optical properties of Zn1-xCdxO for theapplication in the fabrication of photonic devices covering full visiblespectrum Wu-Ching Chou, Kun-Feng Chien, Ling Lee, and Chin-Hau Chia [TUA4-2] 15:25 ~ 15:40 Growth of semi-insulating GaN layer for HEMT structure by eliminating degenerate layer at GaN/sapphire interface In-Su Shin, Donghyun Kim, Donghyun Lee, Yumin Koh, Chan Soo Shin, Yongjo Park, and Euijoon Yoon [TUA4-3] 15:40 ~ 15:55 Polarization and Interface Engineering in ZnMgO/ZnO polar oxide heterostructures Jiandong Ye, Shulin Gu, Kie Leong TEO, Rong Zhang, and Youdou Zheng [TUA4-4] 15:55 ~ 16:10 Sidewall overgrowth of GaN on GaN nanopillars ming xiao, Jincheng Zhang, and Yue Hao [TUA4-5] 16:10 ~ 16:25 Molecular beam epitaxy of In(Ga)Nmonolayer in GaN matrix Xinqiang Wang, Xiantong Zheng, Dingyu Ma, Ping Wang, Bo Shen, Tobias Schulz, and Martin Albrecht The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room B (Crystal Ballroom B) Session Title: [TUB4] 02. Optoelectronic Devices : UV LEDs and Stress Control Date: May 19, 2015 (Tuesday) Time: 15:10 ~ 16:25 [TUB4-1] 15:10 ~ 15:25 High efficiency deep ultraviolet multiplequantum wells using polarization screening effect Jinwan Kim, Minhwan Jeon, Jaedo Pyeon, Daemin Choe, Eunyoung Shin, and Okhyun Nam [TUB4-2] 15:25 ~ 15:40 Enhanced Light Extraction and ElectricalProperties of DeepUltraviolet Light-Emitting Diodes by UtilizingTransverse- Magnetic-Dominant Emission Jong Won Lee, Jun Hyuk Park, Dong Yeong Kim, and Jong Kyu Kim [TUB4-3] 15:40 ~ 15:55 Vertical integration of heterogeneous light-emitting diodes by wafer bonding and transfer printing Jaeyi Chun, Kwang Jae Lee, Young-Chul Leem, Won-Mo Kang, Tak Jeong, Jong Hyeob Baek, Hyung Joo Lee, Bong-Joong Kim, and Seong-Ju Park [TUB4-4] 15:55 ~ 16:10 Reduction of stress on GaN epitaxial layer byusing SiO2 thin film on the backside of sapphire substrate Seungmin Lee, Jonghak Kim, Seunghyun Moon, Kisu Joo, Jaehoon Ham, Yoon-Kyu Song, Jong-In Shim, Yongjo Park, and Euijoon Yoon [TUB4-5] 16:10 ~ 16:25 Implementation of functional silicate-sphere lithography for fabrication of GaN-based light emitting diodes on 8 inch Si Wafer Hooyoung SONG, Minwoo Lee, Seonock Kim, Ki-Seong Jeon, Jin Hyoun Joe, Eun Ah Lee, Hwanjoon Choi, Junho Sung, Min-Gu Kang, Yoon-Ho Choi, and Jeong Soo Lee The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room A (Crystal Ballroom A) Session Title: [WEA1] 03. Electronic Devices : HEMTs & FETs Date: May 20, 2015 (Wednesday) Time: 09:00 ~ 10:35 [WEA1-1] 09:00 ~ 09:25 [Invited] The Stability of High Voltage AlGaN/GaN HEMTs Chih-Fang Huang [WEA1-2] 09:25 ~ 09:50 [Invited] GaN-based Metal-oxide-semiconductor High-electron Mobility Transistors Ching-Ting Lee [WEA1-3] 09:50 ~ 10:05 Monolithic Integration of AlGaN/GaN Switching FETs andDiodes Sunghoon Park, Jaegil Lee, Sangwoo Han, and Hoyoung Cha [WEA1-4] 10:05 ~ 10:20 High Performance AlGaN/GaN MIS-HEMTs with PEALD-Grown AlN insulator and High-Power Remote Plasma Treatment Jiejie Zhu, Xiaohua Ma, Weiwei Chen, Bin Hou, Jincheng Zhang, and Yue Hao [WEA1-5] 10:20 ~ 10:35 Low-temperature Au-free Ohmic Contact for AlGaN/GaN Heterostructure Jae-Gil Lee, Hyun-Seop Kim, Donghwan Kim, Sang-Woo Han, Kwang-Seok Seo, and Jae-Gil Lee The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room B (Crystal Ballroom B) Session Title: [WEB1] 06. Nanostructures I Date: May 20, 2015 (Wednesday) Time: 09:00 ~ 10:40 [WEB1-1] 09:00 ~ 09:25 [Invited] Nanoscale Characterization of Structural andOptical Properties of Nitride Nanostructures Using Scanning Transmission ElectronMicroscopy Cathodoluminescence Juergen Christen, Frank Bertram, Marcus Mueller, and Peter Veit [WEB1-2] 09:25 ~ 09:40 Column diameter dependence of emission mechanisms in InGaN/GaN single quantum wells nanocolumns Rin Miyagawa, Takao Oto, Yutaro Mizuno, Tatsuya Kano, Jun Yoshida, and Katsumi Kishino [WEB1-3] 09:40 ~ 09:55 Nanoheteroepitaxy of GaN on AlN/Si(111) nanorods fabricated by nanosphere lithography Donghyun Lee, In-Su Shin, Jin Lu, Donghyun Kim, Yongjo Park, and Euijoon Yoon [WEB1-4] 09:55 ~ 10:10 Fabrication of Ultraviolet Emission Device Using GaNNano-needle Field Emitters Jong-Hoi Cho, Je-Hyung Kim, Ju-Hyung Ha, Jun-Mok Ha, Sung-Oh Cho, Won-Jae Lee, and Yong-Hoon Cho [WEB1-5] 10:10 ~ 10:25 The Light Efficiency Enhancement withNanotube and Nanorod GaN-based MQWs by Nanoimprint Lithography Tongxing Yan, Shengxiang Jiang, Qianqian Jiao, Qingbin Ji, and Xiaodong Hu [WEB1-6] 10:25 ~ 10:40 Intrinsic electronic properies of non-polar GaN and InN surfaces Holger Eisele, Michael Schnedler, Andrea Lenz, Verena Portz, Liverios Lymperakis, Jörg Neugebauer, and Philipp Ebert The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room A (Crystal Ballroom A) Session Title: [WEA2] 03. Electronic Devices : Novel Heterostructures Date: May 20, 2015 (Wednesday) Time: 11:00 ~ 12:20 [WEA2-1] 11:00 ~ 11:25 [Invited] GaN-based novel heterostructures and electronic devices Jincheng Zhang, Jiaduo Zhu, Junshuai Xue, Jinfeng Zhang, Xiaohua Ma, and Yue Hao [WEA2-2] 11:25 ~ 11:50 [Invited] Not Submitted Yet Kwang-Seok Seo [WEA2-3] 11:50 ~ 12:05 Fabrication and characterization of p-Si/n-CuInO nano- heterojunction by solution basedmethods Mageshwari Kandhasamy and Jinsub Park [WEA2-4] 12:05 ~ 12:20 GaAs pHEMT HeterogeneousIntegration on Silicon Substrate by Epitaxial Layer Transfer Technology LiShu Wu, Yan Zhao, Wei Cheng, and TangSheng Chen The 7th Asia-Pacific Workshop on Widegap Semiconductors APWS 2015 May 17 ~ 20, 2015 / The K Seoul Hotel, Seoul, Korea Room B (Crystal Ballroom B) Session Title: [WEB2] 06. Nanostructures II Date: May 20, 2015 (Wednesday) Time: 11:00 ~ 12:25 [WEB2-1] 11:00 ~ 11:25 [Invited] Classical and Quantum Light Generation from Nitride Semiconductor Nanostructures Yong-Hoon Cho [WEB2-2] 11:25 ~ 11:40 Large-size monolayer hexagonal BN synthesis and transfer as self-release interlayer for GaN wafer Chenping Wu, Abdul Majid Soomro, Hongmei Xu, Huachun Wang, Jiejun Wu, Xu Yang, Junyong Kang, and Duanjun Cai [WEB2-3] 11:40 ~ 11:55 Bloch surface plasmon enhanced blue emission fromInGaN/GaN light-emitting diode structures with Al-coated GaN nanorods Guogang Zhang, Zhe Zhuang, Xu Guo, Fang-Fang Ren, Bin Liu, Haixiong Ge, Zili Xie, Ling Sun, Ting Zhi, Tao Tao, Yi Li, Youdou Zheng, and Rong Zhang [WEB2-4] 11:55 ~ 12:10 Growth and characterization of nanocolumns arranged in honeycomb and kagome lattice Kai Motoyama, Shunsuke Ishizawa, Ai Yanagihara, Daijiro Shiba, and Katsumi Kishino [WEB2-5] 12:10 ~ 12:25 Study on morphology and shape control ofvolcano-shaped nanopatterned sapphire substrate fabricated by nano-imprintingand wet etching Shengxiang Jiang, Tongxing Yan, Qianqian Jiao, Zhizhong Chen, Tongjun Yu, and Guoyi Zhang The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion I Date e: May 18, 20 015 (Monda ay) Time: 16:30 ~ 18 8:00 MOP1-1] [M High-brig ghtness, hig gh-uniform mity GaN-b based LEDss on large-a area Si sub bstrates Seung-Jae Lee, Jae-Chu hul Song, Seo ong-Ran Jeo on, Jin-Woo Ju, J Tak Jeong g, and Jong Hyeob Baekk [M MOP1-2] Luminescence prope erties of de efects inun nintentiona ally doped high-resistance GaN N Weike Luo,, Liang Li, Zh honghui Li, Xun X Dong, Daqing D Peng, g, Dongguo Z Zhang, and Xiaojun X Xu [M MOP1-3] Raman an nd photolu uminescencce characte erization off p-type In nGaN films Li Liang [M MOP1-4] Freestand ding non-polar m-pla ane GaN grrowth by hydride h vap por phase epitaxy e Seohwi Woo, Wo Daehong ng Min, Sang gil Lee, Uiho ho Choi, Hyu unjae Lee, D Daewoo Cho oi, Jaiyong Han, H Kwangbo Shim, S and Okhyun O Nam [M MOP1-5] Structurall and Opticcal Charactterization of GaN Films Grown n on Differe entSubstra ates Using Pullsed Laser Deposition n Wei-Kai Wang Wa and Shiih-Yung Hun nag [M MOP1-6] VacuumRabi Splittin ng of Excito on–Polarito on Emissio on in an AlN N Film Kongyi Li, Weiying Wang, Wa Zhangh hai Chen, Na Gao, Weih huang Yang, g, Wei Li, Hu uangyang Chen, Ch Shuping Li,i, Heng Li, Pe eng Jin, and d Junyong Kaang The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion I Date e: May 18, 20 015 (Monda ay) Time: 16:30 ~ 18 8:00 MOP1-7] [M Direct Ob bservation of Biaxial Stress Effe ecton Efficciency Droo op in GaN Based Lig ghtEmitting Diode under Electrica alInjection Zheng Jinjiian [M MOP1-8] Regrowth h and optim mization fo or a 3-term minal dual color c LED Mundo Parrk, Jun Youb b Lee, and Dong-Seon Do Le ee [M MOP1-9] Analyzing g the piezzoelectric field ofInG GaN-based d multiple quantum m wells lig ghtemitting diodes d by usingsuper-lattice/lo ow tempera ature n-typ pe GaN structure Tae-Hoon Chung, Jong g Hyeob Baaek, Sang-He Hern Lee, Sun ng-Ran Jeon n, Sung-Hoo on Jung, Kw wang Jae Lee, Paan-Ki Min, an nd June Keyy Lee [M MOP1-10] Correlatio on of the efficiency y droop in n InGaN LEDs L betw ween the time-resolv t ved photolum minescence and electrroluminesccence Gyeong Won Wo Lee, Don ng-Soo Shin, Hyunsung Kim, K Won-Jin in Choi, and Jong-In Shim im [M MOP1-11] Specific nano-pits n a and N dopiing on O-p polar ZnO Hao Wang, g, Huahan Zh han, Yinghuii Zhou, Xiaoh hang Chen, Huiqiong H Wa Wang, and Jun nyong Kang [M MOP1-12] Mg-ion-im mplantatio on Damage e Influence onthe LattticeDeform mation of GaN G Zheng Sun n, Marc Olsso son, Zheng Ye, Y Tsutomu Nagayama, Tetsuya Waatanaba, Yosshio Honda, and Hiroshi Am mano The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion I Date e: May 18, 20 015 (Monda ay) Time: 16:30 ~ 18 8:00 MOP1-13] [M Growth of o super-thiin AlN/GaN N superlatttice structu ureson diffferent GaN crystal pla ane ming xiao, Jincheng Zh hang, and Yue Yu hao [M MOP1-14] Effect of surface morpholog gy and th hickness of o AlNbufffer layer on structu ural properties of GaN/S Si(111) sub bstrate usin ng MOCVD D Kee Young g Lim and Jon ong Ock Kim [M MOP1-15] High perfformance integrated enhancem ment/deple etion-mode e GaN MIS S-HEMTs with w high-κ die electric Yuechan Kong, Ko Jianjun Zhou, Cen Kong, K Kai Zh hang, and Taangsheng Ch hen [M MOP1-16] The impro oved perfo ormance off AlGaN/Ga aN HEMTs by N2O plasma MINHAN MI, M Shenglei Zhao, Yunlo ong He, Xiao ohua Ma, and d Yue Hao [M MOP1-17] Effect off fluorine plasma treatmentt on breakdownvoltage perrformance of AlGaN/Ga aN HEMTs yunlong he e, chong wan ng, minhan mi, shengleii zhao, jinche heng zhang, xxiaohua ma, and yue haao [M MOP1-18] Investigattion of Undiminish hed Surfa ace Dono or Density y of GaN N/AlGaN/G GaN Heterostrructure on Si-substratte by Electtroreflectan nce Spectro oscopy Woong Sun n Kim, Jong Hoon Shin, Young Je Jo o, Kwang Ch hoong Kim, aand Kyu-Sang ng Kim The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion I Date e: May 18, 20 015 (Monda ay) Time: 16:30 ~ 18 8:00 MOP1-19] [M Theinfluence of improveme ent and performa ance AlGa aN/GaN HEMT H ussing Al2O3surface prote ection laye er Ryun-Hwi Kim, K Jun-Hye yeok Lee, Chu hul-Ho Won, Young-Woo o Jo, Do-Kyw wn Kim, and Jung-hee J Le ee [M MOP1-20] Fabricatio on and characterizatio on of ZnSn nO3 p-njun nction for o optoelectro onics Taek Gon Kim, K magesh hwari kandhaasamy, and Jinsub J Park [M MOP1-21] Impacts of surface e charging g on the degradatiion modes of AlGa aN/GaN high h electron mobility m tra ansistors under u reverrse-bias strress Wei-Wei Chen, C Bin Hou ou, Jie-Jie Zhu hu, Jin-Cheng g Zhang, Xiao ao-Hua Ma, aand Yue Hao o [M MOP1-22] Fabricatio on and characteristicss of Omega a-shaped-g gateAlGaN/GaN FinFETs Sindhuri Vodapally, Vo Do ong-Gi Lee, Young-Woo Y Jo, Dong-Hyyeok Son, Ki Ki-Sik Im, and d Jung-Hee Lee L [M MOP1-23] Simulation of InN/G GaN-based Double-GateTunneling Field-Efffect Transsistor Jae Hwa Seo, Se Ra Hee Kwon, Youn ng Jun Yoon, n, Young-Woo oo Jo, Ryun-H Hwi Kim, Do ong-Hyeok Son, S Jung-Hee Lee, L and In Man M Kang [M MOP1-24] The influe ence of hyd drogen adsorption on spontane eous polarrization of AlN and GaN G Jiaduo Zhu u and Jinchen eng Zhang The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion I Date e: May 18, 20 015 (Monda ay) Time: 16:30 ~ 18 8:00 MOP1-25] [M Temperature depen ndent electtrical chara acteristicsffor AlInN:M Mg/GaN heterojunct h tion field-effecct transisto ors Seongjun Kim K and Hyu unsoo Kim [M MOP1-26] Silicon/PE EDOT:PSS Hybrid So olar Cell with w a the ermally reduced gra aphene ox xide bufferlaye er Jung-Hwan n Hyung, Be eo Deul Ryu u, Min Han, Ko Ku Kan ng, Tran Vie et Cuong, Jaaehee Cho, and Chang-Hee e Hong [M MOP1-27] Optimum m thermal design d of searchlight module ussingtherma al simulatio on LEE ARAM [M MOP1-28] Discomfo ort glare type for indo oor lumino ousenvironment in sh hip youngmoo on yu [M MOP1-29] Photoelecctronspectrra of AlN/G GaN hetero ostructure observed by AR-XPS S Daiki Isono o, Shota Taka kahashi, Yohe ei Sugiura, To omohiro Yam maguchi, and d Thoru Hon nda The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion II Date e: May 19, 20 015 (Tuesda ay) Time: 16:30 ~ 18 8:00 TUP2-1] [T Nano-size ed InGaN/G GaN polariized light emitting e diiodes ZiLi Xie, Taao Tao, Ting g Zhi, Zhe Zhuang, Zh jiang gping Dai, yi y Li, Fulong Jiang, Bin Liu, L Hong zh hao, Rong Zhan ng, and Youd dou Zheng [T TUP2-2] Investigattion of su urface-plasmon coup pled red light emittting InGaN N/GaN mu ultiquantum well with Ag A nanopa articles coa ated on Ga aN surface Yi Li, Bin Liu, Rong Zhang, Z Zili Xie, X Zhe Zhu huang, Jiangp ping Dai, Ta Tao Tao, Ting g Zhi, Guog gang Zhang, Hon ong Zhao, Pe eng Chen, Du unjun Chen, and Youdou u Zheng [T TUP2-3] Enhanced d crystal qualities q off nitride-ba asedlight-e emitting d diodes with h MgN intterlayers Hee-Sung Ku, Jong Hyeob Hy Baek, Kwang Cheo eol Lee, Jin Hong H Lee, S Sang-Mook Kim, Sung-C Chul Choi, Hyokkun Son, and d June Key Lee L [T TUP2-4] Dark Currrent Mecha anisms in AlGaN A Avalanche Pho otodiodes Yin Tang, Zhenguang Z S Shao, Dun Ju un Chen, Haai Lu, Rong Zhang, Z and Y Youdou Zhen ng [T TUP2-5] Investigatting Charg ge Trap Density D off InGaN Blue Ligh ht Emitting g Diodes by Capacitan nce Disperssion Measu urement Kyu-Sang Kim, K Dong-P Pyo Han, Hyu un-Sung Kim m, and Jong--In Shim [T TUP2-6] Graphene e interlayerr for curre ent spread ding enhan ncementby engineering of barrier height in GaN-based d light-emitting diod des Jung-Hong g Min, Woo--Lim Jeong, Jun-Yeob J Lee ee, and Dong g-Seon Lee The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion II Date e: May 19, 20 015 (Tuesda ay) Time: 16:30 ~ 18 8:00 TUP2-7] [T A Cu-messh-combined graphe ene sheet for a tran nsparent co onductive layer and its thickness dependen nce on the conductiviity Woo-Lim Jeong, J So-Ye eong Jang, Ju ung-Hong Min, M and Don ng_Seon Lee e [T TUP2-8] Analysis of o luminou us efficienccy in phossphor-conv versionwhitte light-em mitting diod des for evalua ating the conversion c efficiency of phosph hor Guen-Hwan an Ryu, Won--Bo Yang, Yo oung-Hwan Choi, C Byungj gjin Ma, and Han-Youl Ryu Ry [T TUP2-9] Enhanced d light exttraction off InGaN/G GaN light emitting d diode by using NiC CoO nanopartiicles Jinsub Parkk, Dong Su Shin, S and Do o Hyun Kim [T TUP2-10] Design off vertical AlGaN-bas A sed ultraviolet LEDs with distrributed bra ag reflecto orspixel metal combine ed electrod des Xu Yang, Jiinchai Li, Zhaaorong Yuan n, Shuping Li, L Yinghui Zh hou, and Jun nyong Kang [T TUP2-11] Removal of Hydrog gen in Mg g-Doped GaN G Epitax xial Layer by an Ele ectrochemical Method GilYong Hyyeon, Wael Z. Z Tawfik, Sun ngOh Cho, YuanPei Y Zhan ng, SangWaan Ryu, and JuneKey J Lee e [T TUP2-12] SinglePho oton Detecction Perfformance of 4H-SiC C Avalanch he Photodiodes atHigh Temperature Dong Zhou u, Hai Lu, Du unjun Chen, Fangfang Ren, Re Rong Zh hang, and Yo oudou Zheng g The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion II Date e: May 19, 20 015 (Tuesda ay) Time: 16:30 ~ 18 8:00 TUP2-13] [T Stress-Ind duced Piezo oelectric Field in GaN N-Based Blue Light-Emitting Dio odes Wael Z. Taw wfik, GilYong g Hyeon, Sun ngOh Cho, YuanPei Y Zhan ng, and June ekey Lee [T TUP2-14] High-tem mperature and reliab bility perfformance of 4H-SiC C Schottk ky barrier photodiod des for UV V detection n Yisong Xu [T TUP2-15] Effect of Si and Mg gdopants on o chemica al wet-etch hed phenom mena of se emipolar (11( 22) GaN film f Ji-Yeon Parrk and Sung-Nam Lee [T TUP2-16] Improved d light extraction effficiency off GaN-base edlight-em mitting diodes by ussing the aqueo ous ZnO pa attern Hee-jun Le ee, Nak-Jung g Choi, and Sung-Nam S Lee L [T TUP2-17] Interfacial Reaction of Ti/Al Ohmic O conta act to N-fa acen-GaN Buem Joon n Kim, Jun Ho H Son, Hak Ki Yu, and Jong-lam Jo Lee e [T TUP2-18] MgO Laye er with Na ano-Facet for f Enhanccement of LightExtracction Efficiiency in Ga aNBased Lig ght-Emitting Diodes Buem Joon n Kim, Chul Jong J Yoo, Su ungjoo Kim, Jae Yong Paark, and Jong ng-lam Lee The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion II Date e: May 19, 20 015 (Tuesda ay) Time: 16:30 ~ 18 8:00 TUP2-19] [T p-GaN oh hmic of Ni alloy/Ag reflective electrode fo orhigh efficciency LED Ds Kab Ha, So oon-Cheol Shin, S Ji-Youn ng Baek, Joo on-Sung Kwo won, Soo-Hyu un Kang, an nd Kyoung-K Kook Kim [T TUP2-20] Enhancem ment of Electrical and a Optica al Properties of LED D Using Ag A Reflecttive Electrode on p-GaN N Embedded Cu alloy Nano-dotts Ji-Young Baek, Ba Jongyeu eul Jeong, So ohyeon Kim, Soon-Cheo ol Shin, Dong g-Jun Kim, Nam-Woo N Ka Kang, and Kyoung ng-Kook Kim m [T TUP2-21] Oxide-bassed Quantu um Well In nfrared Pho otodetecto ors Zhi Shiuh Lim, L Zhihua Yong, Y Jie Tan ng, and Soo o Jin Chua [T TUP2-22] Improvem ment of external e qu uantum effficiency for f flip-chiipLEDs with optimizzed SiO2/TiO2 2 DBR Gil Jun Lee e, Seung Kyu u Oh, Yu-Jung ng Cha, Yu Liim Lee, and Joon Seop K Kwak [T TUP2-23] Defect distribution d n in InGaN/GaNligh ht-emitting g diodes investigate ed by ussing frequency y-dependencecapacittance-volta age measurrement Tae-Soo Kim, Ki Nna-Cho ho Oh, Hye-J -Jung Yu, Taae-Kyun Eom m, Seung Yo Young Lim, Yungboo Y Mo oon, Soon-Ku Hong, H Jong-H Hyeob Baek, Taehoon Ch hung, and Ju ung-Hoon So Song [T TUP2-24] Highly tra ansparent metallic tra ansparent conductive eelectrodess deposited by obliqueangle dep position me ethod for high-efficie h ency GaN-based light-emittingd diodes Munsik Oh h and Hyunso soo Kim The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion II Date e: May 19, 20 015 (Tuesda ay) Time: 16:30 ~ 18 8:00 TUP2-25] [T Experimental deterrmination of carrierr injection n efficiency y in InGa aN/GaN light emitting diodes d Nancho Oh h, Taesoo Kim im, Hyejung Yu, Youngbo oo Moon, an nd Junghoon n Song [T TUP2-26] InGaN/Ga aNLEDs: A Temperatu ure Gradien nt Method H. Fukunag ga, S. Nohdaa, M. Kimura, a, M. Muguru uma, SHIRO SAKAI, and Y. Muramoto to [T TUP2-27] Effect of polarity on n the electtrical chara acterization n of Ag oh hmic conta acts to p-ty ype GaN Jae-Seong Park, Jaeche eon Han, and nd Tae-yeon Seong S [T TUP2-28] Measurem ment of pie ezoelectric field in single- and double-qu uantum-we ell green LE EDs using elecctroreflecta ance spectroscopy Usman Mu uhammad, Hyunsung Hy Kim m, and Dong g-soo Shin [T TUP2-29] Theoretical and exp perimental analysis of o blue MQW and g green SQW W InGaN/G GaN light-emittting diode es Usman Mu uhammad, Hyunsung Hy Kim m, and Jong-In Shim [T TUP2-30] Affect of n-doping and n-GaN N thicknesss on the light extracction efficiiency (LEE)) of blue InGa aN/GaN lig ght-emitting g Diodes Usman Mu uhammad, Hyunsung Hy Kim m, and Jong-in Shim The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion II Date e: May 19, 20 015 (Tuesda ay) Time: 16:30 ~ 18 8:00 TUP2-31] [T Photo-pumped Lasing from In nGaN Nano orings HOI WAI CHOI, C KWAI HEI H LI, and YUK Y FAI CHEEUNG [T TUP2-32] Orientatio on-controllled growtth of inclined GaN N nanorod ds on m-sapphire by metalorga anic chemiical vapor deposition d without catalyst Kyuseung Lee, L Sooryon ng Chae, Jon ongjin Jang, Daehong D Mi Jaehwan Kim, Yang-S Min, Seok Yoo, Yo ongHoon Cho, and Okhyu un Nam [T TUP2-33] Study of GaN G Decom mposition in Atmosp pheric Presssures SHIH-YUNG G HUANG, WEI-KAI W WAN ANG, and PO-RUNG LIN [T TUP2-34] Numerica al investiga ation of lig ght extractiion efficien ncyin AlGaN-based nanorod n lig ghtemitting diode d strucctures emitting at ulttravioletwa avelengthss Won-bo Yaang, Guen-H Hwan Ryu, Yo oung-Hwan Choi, C and Han-Youl Ha Ryu u [T TUP2-35] High Qua ality, Orde ered InGaN N Nanopy yramid ArrraysGrown n on Si Substrates for Potential Photovolta aic Applica ations Jian Wei Ho, H Michael Heuken, H And drew A. O. Taay, and Soo-J -Jin Chua [T TUP2-36] Patterning g of ZnO Nanorod Arrays A by Modulatin ng theRoug ghness of GaN Surfface using KrF F Excimer Laser L Buem Joon n Kim, Sungjjoo Kim, Hyu ung Won Ch ho, Jae Yong Park, and Jo ong-lam Lee e The 7th Asia-Pacif A fic Worksh hop on Wid degap Sem miconductors AP PWS 2015 2 5 Ma ay 17 ~ 20 0, 2015 / The K Seo oul Hotel, Seoul, Korrea Ro oom P (Geu umkang A Hall) H Sesssion Title: Poster Sesssion II Date e: May 19, 20 015 (Tuesda ay) Time: 16:30 ~ 18 8:00 TUP2-37] [T Comparison of s simultaneo ous and pulsed-m mode MO OVPE grow wthsof G GaN nanocolum mns Naoyuki Mizuno, M Satosshi Kamiyam ma, Tetsuya Takeuchi, Ta Mo otoaki Iwaya, and Isamu Akasaki [T TUP2-38] Fabricatio onof GaN based na anostructurres by hy ydrogen en nvironmen nt anisotro opic thermal etching(HEA e ATE) Akihiko Kikkuchi, Ryo Kita, Ki Ryo Hach chiya, and To omoya Mizuttani
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