Enhanced Efficiency of a Dye-Sensitized Solar Cell Made from MgO-Coated Nanocrystalline SnO_2 : Semiconductors
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概要
- 論文の詳細を見る
Nanocrystalline SnO_2-based dye-sensitized photoelectrochemical solar cells have very low open-circuit voltages of 325-375 mV and efficiencies of 〜 1 %. However, on coating the SnO_2 crystallites with a thin film of MgO, the voltage and efficiency are increased to 650-700 mV and 〜 6.5%, respectively. Evidence is presented to show that the photoexcited dye on the outer MgO shell could tunnel electrons to SnO_2 and that the low probability of reverse tunneling suppresses recombinations, thus increasing the efficiency. An explanation is also given as to understand why dye-sensitized TiO_2 cells are more efficient than those made from SnO_2 alone.
- 社団法人応用物理学会の論文
- 2001-07-15
著者
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TENNAKONE Kirthi
Institute of Fundamental Studies
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KONNO Akinori
Department of Electronic Chemistry, Tokyo Institute of Technology
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Kumara Gamaralalage
Department Of Materials Science Shizuoka University
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Konno Akinori
Department Of Materials Science Shizuoka University
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Konno Akinori
Department Of Electronic Chemistry Tokyo Institute Of Technology
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Tennakone K
Inst. Fundamental Studies Kandy Lka
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BANDARA Jayasundara
Institute of Fundamental Studies
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BANDARANAYAKE Konara
Institute of Fundamental Studies
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Bandaranayake Priyangi
Institute Of Fundamental Studies
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Tennakone Kirthi
Innovative Joint Research Center Shizuoka University
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KONNO Akinori
Department of Materials Science, Shizuoka University
関連論文
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- Photoelectrochemical Reactions of Organic Compounds II. Preparation and Photocurrent Response of Self-assembled Phenothiazine Substituted Alkanethiol Modified Electrodes
- Development of Nano-Porous SnO_2/ZnO Composite Electrode for Efficient Dye-sensitized Solar Cell
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