Curriculum Vitaes
Profile Information
- Affiliation
- Professor, Faculty of Science and Technology, Department of Engineering and Applied Sciences, Sophia University(Concurrent)Director of the Institute of Semiconductor Research
- Degree
- 工学士(上智大学)工学修士(上智大学)博士（工学）(上智大学)
- Researcher number
- 90266073
- J-GLOBAL ID
- 200901002456943226
- researchmap Member ID
- 1000167938
Reserach Field: Semiconductor Engineering, Optical and Quantum Electronics,
Nano-crystal Engineering, Organic Semiconductor Devices
Classes: Analog Electronics Circuit, Optoelectronics, Engineering of Optoelectronic Devices, Engineering and Applied Sciences Lab.1, Engineering and Applied Sciences Lab. 2, Information fluency (Build a WEB page using HTML and css)
(Subject of research)
Development of III-nitride nano-columnar crystals for device application
Research on multi-color emission mechanism of InGaN nanocolumns and their application for light emitting device
Short Wavelength semiconductor laser
Research Interests
14Research Areas
3Research History
1-
Apr, 1992 - Mar, 1994
Education
1-
Apr, 1983 - Mar, 1987
Awards
2Papers
232-
Extended Abstract of the 2023 International Conference on Solid State Devices and Materials, Sep, 2023 Peer-reviewedLast authorCorresponding author
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Extended Abstract of the 2022 International Conference on Solid State Devices and Materials, Sep, 2022 Peer-reviewedLast authorCorresponding author
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Japanese Journal of Applied Physics, 61(SC) SC1078-SC1078, Mar 25, 2022 Peer-reviewedLast authorCorresponding authorAbstract The fabrication technology for photonic crystals (PhCs) pertaining to the near-infrared region is mature, and the development of highly functional PhCs using low-symmetry nanoholes is rapidly progressing. In the visible region, InGaN/GaN systems that have good luminescent and electrical properties are the most promising candidate materials for such types of highly functional PhCs, but the development is not progressing. In this study, we report on the basic design parameters and a new fabrication method for InGaN/GaN-based PhC membranes by combining hydrogen environment anisotropic thermal etching based on hydrogen-assisted thermal decomposition and nitric acid wet etching of the AlInN sacrificial layer. Using this method, we fabricated high-quality InGaN/GaN multiple-quantum-well PhC membrane structures having six-membered rings of well-formed fine equilateral triangular nanoholes with a side length of 100 nm. Enhanced green room-temperature photoluminescence with an intensity nine times higher than that of as-grown wafers was observed for the PhC membrane.
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Journal of Crystal Growth, 575 126338-126338, Dec, 2021 Peer-reviewedLast author
Misc.
87-
applied physics, 84(1) 66-70, Jan 10, 2015
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Meeting abstracts of the Physical Society of Japan, 68(1) 790-790, Mar 26, 2013
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Meeting abstracts of the Physical Society of Japan, 68(1) 848-848, Mar 26, 2013
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Meeting abstracts of the Physical Society of Japan, 68(1) 194-194, Mar 26, 2013
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Technical report of IEICE. OME, 112(57) 25-29, May 17, 2012Thin film deposition characteristics of a Nano-Mist Deposition (NMD) technique: a kind of electrospray deposition technique, using green emission polymer of F8BT. The deposition area was enlarged to 47mm in diameter by increasing a distance between nozzle and substrate. By controlling some deposition conditions, the surface roughness (Ra) of the F8BT layer was reduced to 4.9nm. The NMD was applied to form the F8BT layer of AZO/F8BT/MoO_3 inorganic-organic hybrid LED. The obtained device characteristics were comparable to that of reference device whose active layer was formed by spin-coating method. Furthermore, we demonstrated a fabrication of multiple-stacked organic layer (TPD/F8BT/BCP: low-molecular/ high-molecular/low-molecular) OLED by NMD and obtained a clear rectification characteristics and current injection emission.
Books and Other Publications
17Presentations
802-
30th International Conference on the Physics of Semiconductors (ICPS 2010), Jul 27, 2010
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The 3rd International Symposium on Growth of III-Nitrides (ISGN-3), Jul 6, 2010
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The 3rd International Symposium on Growth of III-Nitrides (ISGN-3), Jul 6, 2010
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52nd Electronic Materials Conference and Exhibition (EMC 2010), Jun 25, 2010, TMS Electronic, Magnetic & Photonic Materials Division
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8th International Workshop on Epitaxial Semiconductors on Patterned Substrates and Novel Index Surfaces (ESPS-NIS), Como, Italy, Jun 14, 2010
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The 8th International Symposium on Semiconductor Light Emitting Devices, Beijing, China, May 16, 2010
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第2回窒化物半導体結晶成長講演会「窒化物半導体結晶成長の新しい流れ」、FR-22、三重, May 14, 2010, 日本結晶成長学会ナノ構造エピタキシャル成長分科会・三重大学極限ナノエレクトロニクスセンター
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The Second International Conference on White LEDs and Solid State Lighting (WHITE LEDs 2009), Taipei, Taiwan, Dec 13, 2009
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The 6th International Conference on Advanced Materials and Devices (ICAMD 2009), Jeju, Korea, Dec 9, 2009
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2009 International Microprocesses and Nanotechnology Conference, Nov 18, 2009
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4th Nanowire Growth Workshop 2009 (NWG 2009), Oct 26, 2009
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The 8th International Conference on Nitride Semiconductors (ICNS-8), Oct 23, 2009
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The 8th International Conference on Nitride Semiconductors (ICNS-8), Oct 22, 2009
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The 8th International Conference on Nitride Semiconductors (ICNS-8), Oct 20, 2009
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The 8th International Conference on Nitride Semiconductors (ICNS-8), Oct 20, 2009
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Second Workshop on Wide Bandgap Nitrides, St.Louis, USA,, Oct 17, 2009
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11th International Conference on Advanced Materials (ICAM2009), PM1, Rio de Janeiro, Brazil, Sep 20, 2009
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8th International Conference on Intersubband Transitions in Quantum Wells, #91, Cape Cod, MA, USA, Sep 11, 2009
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The 36th International Symposium on Compound Semiconductors, Santa Barbara, USA, Aug 30, 2009
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The 36th International Symposium on Compound Semiconductors, Santa Barbara, USA, Aug 30, 2009
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The 36th International Symposium on Compound Semiconductors, Santa Barbara, USA, Aug 30, 2009
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17th American Conference on Crystal Growth and Epitaxy (ACCGE-17), Aug 10, 2009, American Association for Crystal growth
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The 14th International Conference on Modulated Semiconductor Structures (MSS-14), Kobe, Japan, Jul 19, 2009
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The 14th International Conference on Modulated Semiconductor Structures (MSS-14), Kobe, Japan,, Jul 19, 2009
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The Fourth International Conference on Nitride Semiconductors (ICNS-4), A8.2, Denver U.S.A,, Jul 16, 2009
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Integrated Photonics and Nanophotonics Research and Applications (IPNRA), Honolulu, Hawaii, USA,, Jul 12, 2009
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51st TMS Electronic Materials Conference, Jun 25, 2009
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E-MRS 2009, Jun 8, 2009
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The Asia-Pacific Workshop on Widegap Semiconductors 2009, May 25, 2009
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Selective-Area Growth of InN Nanocolumns by RF-MBE using Pt-Mask Patterned Sapphire (0001) SubstrateThe Asia-Pacific Workshop on Widegap Semiconductors 2009, May 25, 2009
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第1回窒化物半導体結晶成長講演会「窒化物半導体結晶成長の未来を展望する」SAT-14, May 16, 2009, 日本結晶成長学会ナノ構造・エピタキシャル成長分科会
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第1回窒化物半導体結晶成長講演会「窒化物半導体結晶成長の未来を展望する」Inv-07-01, May 16, 2009, 日本結晶成長学会ナノ構造・エピタキシャル成長分科会
Professional Memberships
6Major Research Projects
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Jun, 2019 - Mar, 2023
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戦略的な研究開発の推進 戦略的創造研究推進事業 CREST, 科学技術振興機構, 2018 - 2023
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2017 - Mar, 2022
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2016 - Mar, 2019
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2012 - Mar, 2016
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2012 - Mar, 2015
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, 2009 - 2011
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, 2006 - 2008
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2006 - 2008
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NEDO産業技術研究助成, 2002 - 2006
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科学研究費助成事業, 日本学術振興会, 2001 - 2002
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科学研究費助成事業, 日本学術振興会, 1999 - 2000
Industrial Property Rights
39Other
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Oct, 2006当日の授業内容に関する小テストを行って授業内容の理解度を確認している。講義時間が若干減るが、むしろ授業に対する学生の集中度が増して講義の効率が高まっている。\n小テストは採点して次回の授業で返却している。回答率の悪い問題に対しては復習を兼ねた解説を行っている。
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Apr, 2006授業（講義により頻度は異なる）において、進行速度、理解度、取り上げてほしいテーマなどを記述できるリアクションペーパを配布してその場で回収し、次回の授業計画にフィードバックしている。\n特に、学生の理解度を把握をする上で効果が高い。理解度の低いと思われる内容については次回の授業の初めに復習を行っている。
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Apr, 2006授業で使用したpdfファイルを若干の修正を行った後、学内ネットワーク上のレポート提出システムを利用して配布し、授業の復習が行いやすいように配慮している。
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Apr, 2006授業終了時に課題を与え、提出期限を次回の授業前日と設定し、次回の授業で課題の解説を行っている。\n授業時間後の復習効果が高まり、復習として効果的である。
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Apr, 2006コンピュータを用いた授業では、重要なテーマ毎に簡単な演習課題を与え、着実に理解できるような授業構成を心がけている。\n演習時にはTAが個別に対応することで、理解度の異なる学生に対しても綿密な指導ができるよう配慮している。