Charge-transport in tin-iodide perovskite CH3NH3SnI3 : origin of high conductivity

Takahashi, Yukari; Obara, Rena; Lin, Zheng-Zhong; Takahashi, Yukihiro; Naito, Toshio; Inabe, Tamotsu; Ishibashi, Shoji; Terakura, Kiyoyuki

Charge-transport in tin-iodide perovskite CH3NH3SnI3 : origin of high conductivity

Takahashi, Yukari; Obara, Rena; Lin, Zheng-Zhong et al.

Dalton Transactions, 2011, 40(20), 5563-5568

Permalink : https://hdl.handle.net/2115/48597

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アクセス権	open access
URI	https://hdl.handle.net/2115/48597
タイトル	Charge-transport in tin-iodide perovskite CH3NH3SnI3 : origin of high conductivity
著者	Takahashi, Yukari ; Obara, Rena ; Lin, Zheng-Zhong ; Takahashi, Yukihiro ; Naito, Toshio ; Inabe, Tamotsu ; Ishibashi, Shoji ; Terakura, Kiyoyuki
著者名 Takahashi, Yukari
著者名 Obara, Rena
著者名 Lin, Zheng-Zhong
著者名 Takahashi, Yukihiro
著者名 Naito, Toshio
e-Rad_Researcher 20168412 著者名 Inabe, Tamotsu
著者名 Ishibashi, Shoji
著者名 Terakura, Kiyoyuki
言語	英語
発行日	2011-05-28
出版者	Royal Society of Chemistry
収録物名	Dalton Transactions
巻(号)	40(20)
ページ	5563-5568
抄録	The structural and electrical properties of a metal-halide cubic perovskite, CH3NH3SnI3, have been examined. The band structure, obtained using first-principles calculation, reveals a well-defined band gap at the Fermi level. However, the temperature dependence of the single-crystal electrical conductivity shows metallic behavior down to low temperatures. The temperature dependence of the thermoelectric power is also metallic over the whole temperature range, and the large positive value indicates that charge transport occurs with a low concentration of hole carriers. The metallic properties of this as-grown crystal are thus suggested to result from spontaneous hole-doping in the crystallization process, rather than the semi-metal electronic structure. The present study shows that artificial hole doping indeed enhances the conductivity.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Dalton Trans., 2011, 40, 5563-5568 - Reproduced by permission of The Royal Society of Chemistry (RSC)
PISSN	1477-9226
関連情報	PMID 21494720
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1039/c0dt01601b