Tetsuo Soga
Chinese Academy of Sciences
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Publication
Featured researches published by Tetsuo Soga.
photovoltaic specialists conference | 2000
Md. Mosaddeq ur Rahman; H. Tanaka; Tetsuo Soga; Takashi Jimbo; M. Umeno
The sol-gel spin coating method has been explored to prepare TiO/sub 2/ thin films for dye-sensitized TiO/sub 2/ solar cell application. Sol concentrated at 40/spl deg/C with 40% polyethylene glycol (PEG) by weight of TiO/sub 2/ added to the sol is found to give smooth, crack free and highly porous film with high cell efficiency. Thickness dependent optical absorption and cell performance are studied. Though light absorption gradually increases with film thickness, a saturation in short-circuit current occurs at higher thicknesses. Efforts are also made to improve the cell performance by modifying the electrolyte solvent and adding 4-tert butylpyridine.
Journal of Luminescence | 1988
Xiongwei Hu; Shiro Sakai; Tetsuo Soga; Masayoshi Umeno
Abstract AlGaAs/GaAs TJS (Transverse Junction Stripe) laser diodes are fabricated on p-Si substrates by MOCVD. The preferential Zn diffusion is performed in DH structure on Si at 650°C using sputtered SiO 2 as diffusion mask. The diodes have lased at room temperature (27°C) pulsed conditions with the minimum threshold current of 379mA.
Archive | 1985
Masayoshi Umeno; Shiro Sakai; Tetsuo Soga
Archive | 1985
Masayoshi Umeno; Shiro Sakai; Tetsuo Soga
Archive | 2000
Takashi Jinbo; Tetsuo Soga; Sharuda Tarun; Masayoshi Umeno; シャルダ タルン; 哲夫 曽我; 正義 梅野; 孝志 神保
Archive | 2004
Sharon Maheshwar; Afre Ashok Rakesh; Tetsuo Soga; シャロン マヘシュワル; アショク アフレ ラケシュ; 哲夫 曽我
Archive | 2002
Sharif Mohammad Mominuzzaman; M. Rusop; Tian Xuemin; Tetsuo Soga; Takashi Jimbo
Archive | 2009
M. Rusop; Tetsuo Soga
Archive | 2009
Jianhui Zhang; Ishwor Khatri; Naoki Kishi; Tetsuo Soga; Takashi Jimbo
Archive | 2009
M. Rusop; Tetsuo Soga
Collaboration
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