M. Sometani, Y. Katsu, D. Nagai, H. Tsuji, T. Hosoi, T. Shimura, Y. Yonezawa, and H. Watanabe,
"Improved channel mobility of 4H-SiC n-MOSFETs by ultrahigh-temperature gate oxidation with low-oxygen partial-pressure cooling",
Japanese Journal of Applied Physics, 57, (12) pp 120304-1~4(2018).
K. Moges, M. Sometani, T. Hosoi, T. Shimura, S. Harada, and H. Watanabe,
"Sub-nanometer-scale depth profiling of nitrogen atoms in SiO2/4H-SiC structures treated with NO annealing",
Applied Physics Express, 11, (10) pp 101303-1~4(2018).
E. Fujita, M. Sometani, T. Hatakeyama, S. Harada, H. Yano, T. Hosoi, T. Shimura, and H. Watanabe,
"Insight into enhanced field-effect mobility of 4H-SiC MOSFET with Ba incorporation studied by Hall effect measurements",
AIP Advances, 8, (8) pp 085305-1~6(2018).
T. Hosoi, Y. Katsu, K. Moges, D. Nagai, M. Sometani, H. Tsuji, T. Shimura, and H. Watanabe,
"Passive–active oxidation boundary for thermal oxidation of 4H-SiC(0001) surface in O2/Ar gas mixture and its impact on SiO2/SiC interface quality",
Applied Physics Express, 11, (9) pp 091301-1~4(2018).
R. Hosono, T. Kawabata, K. Hayashida, T. Kudo, K. Ozaki, N. Teranishi, T. Hatsui, T. Hosoi, H. Watanabe, and T. Shimura,
"Advancement of X-ray radiography using microfocus X-ray source in conjunction with amplitude grating and SOI pixel detector, SOPHIAS",
Optics Express, 26, (16) pp 21044-21053(2018).
H. Tsuji, T. Hosoi, Y. Terao, T. Shimura, and H. Watanabe,
"Improvement of SiO2/4H-SiC(0001) interface properties by H2 and Ar mixture gas treatment prior to SiO2 deposition",
Materials Science Forum, 924, pp 461-464(2018).
T. Yamada, K. Watanabe, M. Nozaki, Hong-An Shih, S. Nakazawa, Y. Anda, T. Ueda, A. Yoshigoe, T. Hosoi, T. Shimura, and H. Watanabe,
"Physical and electrical characterizations of AlGaN/GaN MOS gate stacks with AlGaN surface oxidation treatment",
Japanese Journal of Applied Physics, 57, (6S3) pp 06KA07-1~6(2018).
M. Nozaki, K. Watanabe, T. Yamada, Hong-An Shih, S. Nakazawa, Y. Anda, T. Ueda, A. Yoshigoe, T. Hosoi, T. Shimura, and H. Watanabe,
"Implementation of atomic layer deposition-based AlON gate dielectrics in AlGaN/GaN MOS structure and its physical and electrical properties",
Japanese Journal of Applied Physics, 57, (6S3) pp 06KA02-1~7(2018).
K. Watanabe, D. Terashima, M. Nozaki, T. Yamada, S. Nakazawa, M. Ishida, Y. Anda, T. Ueda, A. Yoshigoe, T. Hosoi, T. Shimura, and H. Watanabe,
"SiO2/AlON stacked gate dielectrics for AlGaN/GaN MOS heterojunction field-effect transistors",
Japanese Journal of Applied Physics, 57, (6S3) pp 06KA03-1~6(2018).
E. Kojima, K. Chokawa, H. Shirakawa, M. Araidai, T. Hosoi, H. Watanabe, and K. Shiraishi,
"Effect of incorporation of nitrogen atoms in Al2O3 gate dielectric of wide-bandgap-semiconductor MOSFET on gate leakage current and negative fixed charge",
Applied Physics Express, 11, (6) pp 061501-1~4(2018).
A. Uedono, T. Yamada, T. Hosoi, W. Egger, T. Koschine, C. Hugenschmidt, M. Dickmann, and H. Watanabe,
"Annealing behavior of open spaces in AlON films studied by monoenergetic positron beams",
Appl. Phys. Lett., 112, (18) pp 182103-1~4(2018).
T. Yamada, K. Watanabe, M. Nozaki, H. Yamada, T. Takahashi, M. Shimizu, A. Yoshigoe, T. Hosoi, T. Shimura, H. Watanabe,
"Control of Ga-oxide interlayer growth and Ga diffusion in SiO2/GaN stacks for high-quality GaN-based metal–oxide–semiconductor devices with improved gate dielectric reliability,"
Applied Physics Express, 11, (1) pp 015701-1~4(2018).
H. Oka, T. Tomita, T. Hosoi, T. Shimura, H. Watanabe,
"Lightly doped n-type tensile-strained single-crystalline GeSn-on-insulator structures formed by lateral liquid-phase crystallization,"
Applied Physics Express, 11, (1) pp 011304-1~4(2018).
国際学会 / International Conferences
T. Hosoi, H. Oka, K. Inoue, Y. Wada, T. Shimura, and H. Watanabe,
"High-mobility P- and N-channel GeSn Thin-film Transistors on Transparent Substrate Fabricated by Nucleation-controlled Liquid-phase Crystallization",
49th IEEE Semiconductor Interface Specialists Conference (SISC 2018), 3.3, Dec.6,
(San Diego, USA, December 5-8, 2018).
T. Nagura, K. Chokawa, M. Araidai,T. Hosoi, H. Watanabe, A. Oshiyama, and K. Shiraishi,
"Effect of incorporating Hf atoms in AlON gate dielectrics on hole leakage current",
49th IEEE Semiconductor Interface Specialists Conference (SISC 2018), 3.4, Dec.6,
(San Diego, USA, December 5-8, 2018).
T. Hosoi, K. Watanabe, M. Nozaki, T. Yamada, T. Shimura, and H. Watanabe,
"Mobility enhancement in AlGaN/GaN MOS-HFET with gate recess etching by using AION gate insulator",
International Workshop on Nitride Semiconductors (IWN2018), ED3-2, Nov.13,
(Kanazawa, Japan, November 11-16, 2018).
T. Yamada, D. Terashima, M. Nozaki, H. Yamada, T. Takahashi, M. Shimizu, A. Yoshigoe, T. Hosoi, T. Shimura, and H. Watanabe,
"Improved reliability of SiO2/GaN MOS devices by controlling the oxide interlayer",
International Workshop on Nitride Semiconductors (IWN2018), TuP-ED-4, Nov.13,
(Kanazawa, Japan, November 11-16, 2018).
M. Nozaki, D. Terashima, T. Yamada, A. Yoshigoe, T. Hosoi, T. Shimura, and H. Watanabe,
"Comparative study of thermal decomposition of thin Ga oxide layer on GaN and AlGaN surfaces",
International Workshop on Nitride Semiconductors (IWN2018), TuP-ED-3, Nov.13,
(Kanazawa, Japan, November 11-16, 2018).
H. Watanabe, T. Yamada, M. Nozaki, K. Moges, T. Hosoi, and T. Shimura,
"Gate Stack Technology for Advanced GaN and SiC based MOS Devices" (Invited),
14th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14), 22E17, Oct.22,
(Sendai, Japan, October 21-25, 2018).
T. Hosoi, H. Oka, T. Shimura, and H. Watanabe,
"Optoelectronic Integration Based on High-quality GeSn Grown by Liquid Phase Crystallization" (Invited),
14th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14), 25D10, Oct.25,
(Sendai, Japan, October 21-25, 2018).
H. Watanabe, T. Yamada, M. Nozaki, T. Hosoi, and T. Shimura,
"Gate Stack Technology for Advanced GaN-Based Mos Devices" (Invited),
Americas International Meeting on Electrochemistry and Solid State Science (AiMES 2018), D01-0712, Oct.2,
(Cancun, Mexico, September 30-October 4, 2018).
H. Watanabe, T. Tomita, H. Oka, K. Inoue, T. Hosoi, and T. Shimura,
"Highly n-Type Doped Ge and Gesn Wires Fabricated By Lateral Liquid-Phase Epitaxy",
Americas International Meeting on Electrochemistry and Solid State Science (AiMES 2018), G03-1057, Oct.2,
(Cancun, Mexico, September 30-October 4, 2018).
Y. Wada, K. Inoue, T. Hosoi, T. Shimura, and H. Watanabe,
"Demonstration of mm-long Nearly Intrinsic GeSn Single-crystalline Wires on Quartz Substrate by Nucleation-controlled Liquid-phase Crystallization",
International Conference on Solid State Devices and Materials (SSDM2018), E-6-04/pp355-356, Sep.12,
(Tokyo, Japan, September 9-13, 2018).
T. Nishimura, H. Nakanishi, I. Kawayama, M. Tonouchi, T. Hosoi, T. Shimura, and H. Watanabe,
"Characterization of SiO2/SiC interface using a Laser Terahertz Emission Microscope",
International Conference on Solid State Devices and Materials (SSDM2018), D-2-06/pp255-256, Sep.11,
(Tokyo, Japan, September 9-13, 2018).
T. Nagura, K. Chokawa, M. Araidai, T. Hosoi, H. Watanabe, A. Oshiyama, and K. Shiraishi,
"First-principles calculations of the effect of incorporating Hf atoms in AlON gate dielectrics of wide-bandgap-semiconductor power devices on the hole leakage current",
International Conference on Solid State Devices and Materials (SSDM2018), PS-4-20/pp985-986, Sep.13,
(Tokyo, Japan, September 9-13, 2018).
K. Moges, M. Sometani, T. Hosoi, T. Shimura, S. Harada, and H. Watanabe,
"Sub-nm-scale depth profiling of nitrogen in NO- and N2-annealed SiO2/4H-SiC(0001) structures",
European Conference on Silicon Carbide and Related Materials (ECSCRM 2018), TU.01a.03, Sep.4,
(Birmingham, UK, September 2-6, 2018).
H. Takeda, T. Hosoi, T. Shimura, and H. Watanabe,
"Evaluation of the impact of Al atoms on SiO2/SiC interface property by using 4H-SiC n+-channel junctionless MOSFET",
European Conference on Silicon Carbide and Related Materials (ECSCRM 2018), WE.P.MI5, Sep.5,
(Birmingham, UK, September 2-6, 2018).
M. Sometani, T. Hosoi, T. Hatakeyama, S. Harada, H. Yano, T. Shimura, H. Watanabe, Y. Yonezawa, and H. Okumura,
"Superiority of pure O2-based gate oxidation on Hall effect mobility of 4H-SiC (0001) MOSFET revealed by low-doped epitaxial wafers",
European Conference on Silicon Carbide and Related Materials (ECSCRM 2018), WE.02b.05, Sep.5,
(Birmingham, UK, September 2-6, 2018).
T. Umeda, T. Hosoi, T. Okuda, T. Kimoto, M. Sometani, S. Harada, and H. Watanabe,
"Electron-spin-resonance characterization on interface carbon defects at 4H-SiC/SiO2 interfaces formed by ultrahigh-temperature oxidation",
European Conference on Silicon Carbide and Related Materials (ECSCRM 2018), TU.03b.01, Sep.4,
(Birmingham, UK, September 2-6, 2018).
S. Nakazawa, Hong-An Shih, N. Tsurumi, Y. Anda, T. Hatsuda, T. Ueda, M. Nozaki, T. Yamada, T. Hosoi, T. Shimura, H. Watanabe, and T. Hashizume,
"GaN-based Metal-Insulator-Semiconductor Transistors on Si for Power Switching Applications"(Invited),
19th International Conference on Metalorganic Vapor Phase Epitaxy (ICMOVPE-XIX), 5B-1.1, Jun.5,
(Nara, Japan, June 3-8, 2018).
H. Watanabe, T. Yamada, M. Nozaki, T. Hosoi, and T. Shimura,
"Gate Stack Technology for Advanced GaN-based MOS Devices"(Invited),
10th Anniversary International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2018), 07pA13I, Mar.7,
(Nagoya, Japan, March 7, 2018).
Takuji Hosoi, Kidist Moges, Takayoshi Shimura, and Heiji Watanabe,
"Challenges in SiO2/SiC interface passivation for SiC power MOSFET"(招待講演),
2018年 第79回応用物理学会秋季学術講演会 講演予稿集, 19a-CE-2, Sep.19,
(名古屋国際会議場, September 18-21, 2018)
Kidist Moges Ayele, Mitsuru Sometani, Takuji Hosoi, Takayoshi Shimura, Shinsuke Harada, and Heiji Watanabe,
"XPS study of nitrogen profiles at SiO2/4H-SiC(0001) interfaces with NO annealing",
2018年 第65回応用物理学会春季学術講演会 講演予稿集, 20a-D103-11, Mar.20,
(早稲田大学, March 17-20, 2018)
H. Oka, M. Koyama, T. Tomita, T. Amamoto, K. Tominaga, S. Tanaka, T. Hosoi, T. Shimura, and H. Watanabe,
"High-mobility TFT and enhanced luminescence utilizing ucleation-controlled GeSn growth on transparent substrate for monolithic optoelectronic"(依頼講演),
第17回「関西コロキアム電子デバイスワークショップ」,
(龍谷大学大阪梅田キャンパス
, 大阪, January 29, 2018).
細井 卓治, 岡 博史, 井上 慶太郎, 志村 考功, 渡部 平司,
"石英基板上単結晶GeSn層形成と光電子デバイス応用",
電子デバイス界面テクノロジー研究会-材料・プロセス・デバイス特性の物理-(第23回研究会), pp. 151-154, Jan.19,
(東レ総合研修センター, 静岡県三島市, January 18-20, 2018).
第16回IEEE EDS Japan Chapter Student Award 岡 博史(D3)
"Enhancement-mode n-channel TFT and Room-temperature Near-infrared Emission Based on n+/p junction in Single-crystalline GeSn on Transparent Substrate,"
February 2, 2018