Papers - SAKAI Kentaro
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Low-temperature photoluminescence of phosphorous-doped ZnO nanowires synthesized by nanoparticle-assisted pulsed-laser deposition Reviewed
K. Sakai, A. Fukuyama, T. Ikari, T. Okada
Proceedings of IEEE (TENCON 2010 - 2010 IEEE Region 10 Conference) 1007 - 1010 2010.11
Language：English Publishing type：Research paper (international conference proceedings)
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光励起キャリア数を制御した圧電素子光熱変換分光法による半導体p-n接合界面の研究
田村仁, 壹岐俊洋, 境健太郎, 福山敦彦, 碇哲雄
宮崎大学工学部紀要 39 15 - 18 2010.9
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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ダイヤモンド様炭素のPPT及びPLスペクトルに対するsp3/sp2比の影響
山元亮一, 宮本達弥, 境健太郎, 福山敦彦, 碇哲雄
宮崎大学工学部紀要 39 19 - 24 2010.9
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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ポリエチレングリコールの分子量を変化させたチタニア多孔質薄膜の光学的特性比較
平下康貴, 境健太郎, 福山敦彦, 碇哲雄
宮崎大学工学部紀要 39 25 - 28 2010.9
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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N添加によるGaAsN薄膜のバンド構造変化とバンド反交差モデルの比較
牟田口和真, 境健太郎, 福山敦彦, 碇哲雄
宮崎大学工学部紀要 39 29 - 34 2010.9
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Investigation of low-temperature excitonic and defect emission from Ni-doped ZnO nanoneedles and V-doped ZnO nanostructured film Reviewed
Shubra Singh, Daisuke Nakamura, Kentaro Sakai, Tatsuo Okada, M S Ramachandra Rao
New Journal of Physics 12 023007-1 - 023007-11 2010.2
Language：English Publishing type：Research paper (scientific journal)
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A study of the recombination process at the p-n junction interface by the photoexcited-carrier-concentration controlled piezoelectric photothermal method Reviewed
H. Tamura, T. Iki, T. Miyamoto, K. Sakai, A. Fukuyama, T. Ikari
Proceedings of Symposium on Ultrasonic Electronics 30 223 - 224 2009.11
Language：English Publishing type：Research paper (international conference proceedings)
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高感度光吸収係数測定を目的とした一定光電流実験手法の構築
壹岐俊洋, 田村仁, 境健太郎, 福山敦彦, 碇哲雄
宮崎大学工学部紀要 38 67 - 71 2009.9
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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sp3/sp2比によるダイヤモンド様炭素薄膜の光学的特性変化
宮本達弥, 壹岐俊洋, 石井翔平, 境健太郎, 福山敦彦, 碇哲雄
宮崎大学工学部紀要 38 60 - 65 2009.9
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Low-Temperature Photoluminescence of nanostructured ZnO Crystal Synthesized by Pulsed-Laser Ablation Reviewed
K. Sakai, K. Noguchi, A. Fukuyama, T. Ikari, T. Okada
Japanese Journal of Applied Physics 48 085001-1 - 085001-5 2009.8
Language：English Publishing type：Research paper (scientific journal)
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Investigation of Carrier Recombination Processes in GaAs/AlAs Multiple Quantum Well Using Piezoelectric Photothermal and Surface Photovoltage Techniques Reviewed
P. Wang, K. Sakai, A. Fukuyama, T. Ikari
Japanese Journal of Applied Physics 48 07GB01-1 - 07GB01-5 2009.7
Language：English Publishing type：Research paper (scientific journal)
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Nonradiative Investigation of Photodecomposition of Poly(di-n-hexylsilan) Thin Films Using Piezoelectric Photothermal Spectroscopy Reviewed
A. Fukuyama, T. Kuroki, K. Sakai, T. Iwamoto, S. Furukawa, T. Ikari
Japanese Journal of Applied Physics 48 07GB02-1 - 07GB02-4 2009.7
Language：English Publishing type：Research paper (scientific journal)
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Detection of photogenerated carrier leakage from GaInNAs/GaAs single quantum well by piezoelectric photothermal spectroscopy Reviewed
S. Fukushima, K. Sakai, H. Yokoyama, A. Fukuyama, M. Ozeki, M. Kondow, T. Ikari
Japanese Journal of Applied Physics 47 7060 - 7064 2008.9
Language：English Publishing type：Research paper (scientific journal)
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圧電素子光熱分光法によるチタニア薄膜の光学的特性の研究
矢野伊織, 井上麻衣子, 宮本達弥, 境健太郎, 福山敦彦, 碇哲雄
宮崎大学工学部紀要 37 21 - 25 2008.8
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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AlGaN/GaNヘテロ界面に形成される2次元電子ガスの光学的特性
福山敦彦, 有村光生, 井上麻衣子, 矢野伊織, 當瀬智之, 境健太郎, 碇哲雄
宮崎大学工学部紀要 37 15 - 20 2008.8
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Optical properties of nanostructured ZnO crystal synthesized by pulsed laser ablation Reviewed
K. Sakai, K. Noguchi, A. Fukuyama, T. Ikari, T. Okada
Physica E 40 2489 - 2493 2008.5
Language：English Publishing type：Research paper (scientific journal)
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Band gap energy fluctuations in InGaN films grown by RF-MBE with changing nitrogen supply rate investigated by a piezoelectric photothermal spectroscopy Reviewed
H. Komaki, T. Shimohara, K. Sakai, R. Katayama, K. Onabe, A. Fukuyama, T. Ikari
physica status solidi (c) 5 ( 2 ) 499 - 502 2008.5
Language：English Publishing type：Research paper (scientific journal)
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Effect of Ga on the structure of Ge-Se-Ga glasses from thermal analysis, Raman and XPS measurements Reviewed
K. Maeda, T. Sakai, K. Sakai, T. Ikari, M. Munzar, D. Tonchev, S. O. Kasap, G. Lucovsky
J Mater Sci: Mater Electron 18 S367 - S370 2007.3
Language：English Publishing type：Research paper (scientific journal)
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Piezoelectric photothermal study of the optical properties of microcrystalline silicon near the bandgap Reviewed
A. Fukuyama, S. Sakamoto, S. Sonoda, P. Wang, K. Sakai, T. Ikari
Thin Solid Films 511-512 112 - 116 2006.7
Language：English Publishing type：Research paper (scientific journal)
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Defect centers and optical absorption edge of degenerated semiconductor ZnO thin films grown by a reactive plasma deposition by means of piezoelectric photothermal spectroscopy Reviewed
K. Sakai, T. Kakeno, T. Ikari, S. Shirakata, T. Sakemi, K. Awai, T. Yamamoto
Journal of Applied Physics 99 ( 043508 ) 1 - 7 2006.2
Language：English Publishing type：Research paper (scientific journal)