Kojima Takanori 児島貴徳

… Alternative Names

児島貴徳コジマタカノリ

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Researcher Number	70725100
Affiliation (Current)	2025: 大阪大学, 大学院工学研究科, 助教
Affiliation (based on the past Project Information) *help	2016 – 2017: 大阪大学, 工学研究科, 助教 2014 – 2016: 大阪大学, 工学(系)研究科(研究院), 助教
Review Section/Research Field	Principal Investigator Optical engineering, Photon science Except Principal Investigator Electronic materials/Electric materials
Keywords	Principal Investigator 発光制御 / GaAs / エルビウム / 希土類 / 光共振器 / フォトニック結晶 Except Principal Investigator 希土類元素 / 発光機能 / フォトン場制御 / エネルギー輸送機構 … More / オプトロニクス / 局所構造 / エネルギー伝達機構 / 発光ダイオード / 発光機能制御 / 薄膜 / 電気・電子材料 Less

Photon-field control of luminescent function of rare-earth ions in semiconductors
- Principal Investigator
  
  藤原康文
- Project Period (FY)
  2017 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Electronic materials/Electric materials
- Research Institution
  Osaka University
Controlling emission properties of rare-earth ions via photonic crystal structuresPrincipal Investigator
- Principal Investigator
  
  Kojima Takanori
- Project Period (FY)
  2014 – 2016
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Optical engineering, Photon science
- Research Institution
  Osaka University
Development of bright red light-emitting devices by elucidation and control of light-emitting mechanism in rare-earth-doped nitride semiconductors
- Principal Investigator
  
  FUJIWARA Yasufumi
- Project Period (FY)
  2012 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Research Field
  
  Electronic materials/Electric materials
- Research Institution
  Osaka University

All 2018 2017 2016 2015 Other

All Journal Article Presentation

[Journal Article] Quantitative study of energy-transfer mechanism in Eu,O-codoped GaN by time-resolved photoluminescence spectroscopy2018
- Author(s)
  Inaba Tomohiro、Kojima Takanori、Yamashita Genki、Matsubara Eiichi、Mitchell Brandon、Miyagawa Reina、Eryu Osamu、Tatebayashi Jun、Ashida Masaaki、Fujiwara Yasufumi
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 123 Issue: 16 Pages: 161419-161419
- DOI
  10.1063/1.5011283
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K05084, KAKENHI-PROJECT-17H01264, KAKENHI-PROJECT-16H03884, KAKENHI-PROJECT-16K13821
[Journal Article] Detection of In segregation in InGaN by using Eu as a probe2017
- Author(s)
  J. Takatsu, B. Mitchell, A. Koizumi, S. Yamanaka, M. Matsuda, T. Gregorkiewicz, T. Kojima, and Y. Fujiwara
- Journal Title
  
  Journal of Crystal Growth
  
  Volume: 470 Pages: 831-834
- DOI
  10.1016/j.jcrysgro.2016.12.101
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24226009, KAKENHI-PROJECT-17H01264
[Journal Article] Control of GaN facet structures through Eu doping toward achieving semipolar {1-101} and {2-201} InGaN/GaN quantum wells2016
- Author(s)
  T. Kojima, S. Takano, R. Hasegawa, D. Timmerman, A. Koizumi, M. Funato, Y. Kawakami, and Y. Fujiwara
- Journal Title
  
  Applied Physics Letters
  
  Volume: 109 Issue: 18
- DOI
  10.1063/1.4965844
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24226009
[Journal Article] Substantial enhancement of red emission intensity by embedding Eu-doped GaN into a microcavity2016
- Author(s)
  T. Inaba, D. Lee, R. Wakamatsu, T. Kojima, B. Mitchell, A. Capretti, T. Gregorkiewicz, A.Koizumi, and Y. Fujiwara
- Journal Title
  
  AIP Advances
  
  Volume: 6 Issue: 4 Pages: 045105-045105
- DOI
  10.1063/1.4946849
- Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15J00887, KAKENHI-PROJECT-24226009
[Presentation] High-Q photonic crystal double-hetero structure nanocavity with Er,O-codoped GaAs2017
- Author(s)
  M. Ogawa, N. Fujioka, K. Sakuragi, T. Kishina, T. Kojima, and Y. Fujiwara
- Organizer
  International Conference on Nano-photonics and Nano-optoelectronics 2017
- Place of Presentation
  Pacifico Yokohama conference center
- Year and Date
  2017-04-18
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26870351
[Presentation] Challenge to highly efficient wavelength-stable red light-emitting diodes using Eu-doped GaN2017
- Author(s)
  Y. Fujiwara, T. Inaba, W. Zhu, B. Mitchell1, T. Kojima, and T. Gregorkiewicz
- Organizer
  Workshop on Frontier Photonic and Electronic Materials and Devices 2017, German-Japanese-Spanish Joint Workshop
- Place of Presentation
  Hotel Punta Rotja, Mallorca, Spain
- Year and Date
  2017-03-05
- Invited
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] Eu添加GaN狭帯域赤色LEDの新展開2017
- Author(s)
  藤原康文、稲葉智宏、朱婉新、児島貴徳、舘林潤
- Organizer
  第368回蛍光体同学会、化学会館ホール、東京都千代田区、6月2日
- Invited
- Data Source
  KAKENHI-PROJECT-17H01264
[Presentation] Challenge to highly efficient wavelength-stable red light-emitting diodes using Eu-doped GaN2017
- Author(s)
  Y. Fujiwara, T. Inaba, W. Zhu, B. Mitchell, T. Kojima, and T. Gregorkiewicz
- Organizer
  12th International Conference on Nitride Semiconductors, Strausbourg, France, July 24-28
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01264
[Presentation] Emission properties of Er ions in GaAs modulated by photonic crystal nanocavities2016
- Author(s)
  T. Kojima, K. Sakuragi, M. Ogawa, N. Fujioka, A. Koizumi, S. Noda, and Y. Fujiwara
- Organizer
  17th International Conference on Physics of Light-Matter Coupling in Nanostructures (PLMCN17)
- Place of Presentation
  Todaiji Temple Cultural Center, Nara, Japan
- Year and Date
  2016-03-28
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26870351
[Presentation] Towards highly efficient wavelength-stable red light-emitting diodes using Eu-doped GaN2016
- Author(s)
  Y. Fujiwara, T. Inaba, B. Mitchell, T. Kojima, and A. Koizumi
- Organizer
  International Conference on Processing & Manufacturing of Advanced Materials; Processing, Fabrication, Properties, Applications (THERMEC’2016)
- Place of Presentation
  Graz, Austria
- Year and Date
  2016-05-29
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] フォトニック結晶光ナノ共振器の導入によるGaAs中のEr発光中心の発光制御2016
- Author(s)
  児島貴德, 櫻木寛至, 小川雅之, 藤岡夏輝, 小泉淳, 野田進, 藤原康文
- Organizer
  第63回応用物理学会春季学術講演会
- Place of Presentation
  東京工業大学大岡山キャンパス
- Year and Date
  2016-03-19
- Data Source
  KAKENHI-PROJECT-26870351
[Presentation] Valence state control of Eu ions in Eu-doped GaN grown by organometallic vapor phase epitaxy2016
- Author(s)
  Y. Fujiwara, T. Nunokawa, M. Matsuda, W. Zhu, T. Kojima, and A. Koizumi
- Organizer
  Workshop on Computational Nano-Materials Design and Realization for Energy-Saving and Energy-Creation Materials
- Place of Presentation
  Osaka University, Japan
- Year and Date
  2016-03-25
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] Enhanced red emission from Eu ions embedded in a GaN resonant optical microcavity2016
- Author(s)
  Y. Fujiwara, T. Inaba, T. Kojima, B. Mitchell, A. Capretti, T. Gregorkiewicz, and A. Koizumi
- Organizer
  Collaborative Conference on 3D and Materials Research 2016 (CC3DMR2016)
- Place of Presentation
  Incheon, Seoul, Korea
- Year and Date
  2016-06-20
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] GaAs中におけるEr発光中心の発光制御－フォトニック結晶光ナノ共振器の導入－2015
- Author(s)
  櫻木寛至, 児島貴德, 小川雅之, 藤岡夏輝, 冨士田誠之, 小泉淳, 野田進, 藤原康文
- Organizer
  第2回半導体エレクトロニクス部門委員会第1回研究会
- Place of Presentation
  大阪工業大学うめきたナレッジセンター
- Year and Date
  2015-07-11
- Data Source
  KAKENHI-PROJECT-26870351
[Presentation] Towards highly efficient wavelength-stable red light-emitting diodes using Eu-doped GaN as an active layer2015
- Author(s)
  Y. Fujiwara, T. Kojima, and A. Koizumi
- Organizer
  Workshop on Frontier Photonic and Electronic Materials and Devices -2015 German-Japanese-Spanish Joint Workshop-
- Place of Presentation
  Shiran-Kaikan, Kyoto University, Kyoto, Japan
- Year and Date
  2015-07-11
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] High-Q photonic crystal double-heterostrcture nanocavity with Er,O-codoped GaAs for low-threshold lasers2015
- Author(s)
  M. Ogawa, N. Fujioka, K. Sakuragi, T. Kojima, A. Koizumi, and Y. Fujiwara
- Organizer
  19th SANKEN International, The 14th SANKEN Nanotechnology Symposium, 3rd KANSAI Nanoscience and Nanotechnology, 11th Handai Nanoscience and Nanotechnology International Symposium
- Place of Presentation
  Icho Kaikan, Osaka University, Suita, Japan
- Year and Date
  2015-12-07
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26870351
[Presentation] Drastic enhancement of Eu emission from red light-emitting Eu-doped GaN in a microcavity2015
- Author(s)
  Y. Fujiwara, T. Inaba, T. Kojima, and A. Koizumi
- Organizer
  11th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR 2015)
- Place of Presentation
  BEXCO, Busan, Korea
- Year and Date
  2015-08-24
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] Towards highly efficient wavelength-stable red light-emitting diodes with Eu-doped GaN: effects of in-plane strain on Eu emission-2015
- Author(s)
  Y. Fujiwara, T. Inaba, T. Kojima, and A. Koizumi
- Organizer
  5th International Workshop on Epitaxial Growth and Fundamental Properties of Semiconductor Nanostructures (SemiconNano2015)
- Place of Presentation
  Lakeshore Hotel, Hsinchu, Taiwan
- Year and Date
  2015-09-06
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] Valence control of Eu ions in Eu-doped GaN grown by organometallic vapor phase epitaxy2015
- Author(s)
  Y. Fujiwara, M. Matsuda, W. Zhu, T. Kojima, and A. Koizumi
- Organizer
  SPIE Nanoscience + Engineering
- Place of Presentation
  San Diego, USA
- Year and Date
  2015-08-09
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] Towards highly efficient wavelength-stable red light-emitting diodes using Eu-doped GaN2015
- Author(s)
  Y. Fujiwara, T. Inaba, B. Mitchell, T. Kojima, and A. Koizumi
- Organizer
  2nd International Workshop on Luminescent Materials 2015 (LumiMat’15)
- Place of Presentation
  Kyoto University, Kyoto, Japan
- Year and Date
  2015-12-12
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] Eu添加GaN赤色LEDの高輝度化に向けて2015
- Author(s)
  藤原康文、稲葉智宏，朱婉新，児島貴徳，小泉淳
- Organizer
  日本学術振興会　ワイドギャップ半導体光・電子デバイス第162委員会第96回研究会
- Place of Presentation
  湯田温泉ホテルかめ福、山口市
- Year and Date
  2015-12-11
- Invited
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] Eu-doped GaN and its application to environmentally-friendly red light-emitting diodes
- Author(s)
  Y. Fujiwara, D. Timmerman, T. Kojima, and A. Koizumi
- Organizer
  The second International Conference on Advanced Materials and Nanotechnology (ICAMN2014), IN04
- Place of Presentation
  Hanoi, Vietnam
- Year and Date
  2014-10-29 – 2014-11-01
- Invited
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] 希土類元素を極める ―希土類添加半導体から何が見えてくるのか―
- Author(s)
  藤原康文、児島孝徳、Dolf Timmerman、小泉淳
- Organizer
  日本金属学会2014年秋期講演大会公募シンポジウム「S3 エレクトロニクス薄膜材料の科学と技術 Ⅱ」、S3-8
- Place of Presentation
  名古屋大学東山キャンパス（名古屋市千種区）
- Year and Date
  2014-09-24 – 2014-09-26
- Invited
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] Europium-doped gallium nitride and its application to environmentally-friendly red light-emitters
- Author(s)
  Y. Fujiwara, D. Timmerman, T. Kojima, and A. Koizumi
- Organizer
  1st International Symposium on Interactive Materials Science Cadet Program, IL7
- Place of Presentation
  Hotel Hankyu Expo Park, Osaka, Japan
- Year and Date
  2014-11-16 – 2014-11-19
- Invited
- Data Source
  KAKENHI-PROJECT-24226009
[Presentation] 希土類元素の精密ドーピングによる半導体光機能性の制御
- Author(s)
  藤原康文、Dolf Timmerman、児島貴徳、小泉淳
- Organizer
  第25回光物性研究会
- Place of Presentation
  神戸大学百年記念会館（神戸市）
- Year and Date
  2014-12-12 – 2014-12-13
- Invited
- Data Source
  KAKENHI-PROJECT-24226009

1. FUJIWARA Yasufumi (10181421)

# of Collaborated Projects: 2 results

# of Collaborated Products: 18 results
2. 吉田博 (30133929)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. 小泉淳 (30418735)

# of Collaborated Projects: 1 results

# of Collaborated Products: 15 results
4. 寺井慶和 (90360049)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. 舘林潤 (40558805)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
6. 市川修平 (50803673)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. MATSUBARA Eiichi

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Kojima Takanori 児島 貴徳

児島 貴徳 コジマ タカノリ

Research Projects

Research Products

Co-Researchers

Photon-field control of luminescent function of rare-earth ions in semiconductors

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Controlling emission properties of rare-earth ions via photonic crystal structuresPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Development of bright red light-emitting devices by elucidation and control of light-emitting mechanism in rare-earth-doped nitride semiconductors

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Quantitative study of energy-transfer mechanism in Eu,O-codoped GaN by time-resolved photoluminescence spectroscopy2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Detection of In segregation in InGaN by using Eu as a probe2017

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Control of GaN facet structures through Eu doping toward achieving semipolar {1-101} and {2-201} InGaN/GaN quantum wells2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Substantial enhancement of red emission intensity by embedding Eu-doped GaN into a microcavity2016

Author(s)

Journal Title

DOI

Data Source

[Presentation] High-Q photonic crystal double-hetero structure nanocavity with Er,O-codoped GaAs2017

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] Challenge to highly efficient wavelength-stable red light-emitting diodes using Eu-doped GaN2017

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] Eu添加GaN狭帯域赤色LEDの新展開2017

Author(s)

Organizer

Data Source

[Presentation] Challenge to highly efficient wavelength-stable red light-emitting diodes using Eu-doped GaN2017

Author(s)

Organizer

Data Source

[Presentation] Emission properties of Er ions in GaAs modulated by photonic crystal nanocavities2016

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] Towards highly efficient wavelength-stable red light-emitting diodes using Eu-doped GaN2016

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] フォトニック結晶光ナノ共振器の導入によるGaAs中のEr発光中心の発光制御2016

Author(s)

Organizer

Place of Presentation

Year and Date

Kojima Takanori 児島貴徳

児島貴徳コジマタカノリ