Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
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DOI：
10.1021/ja809598r
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发表时间：
2009-05-06
影响因子：
15
通讯作者：
Miyasaka, Tsutomu
中科院分区：
文献类型：
--
作者：
Kojima, Akihiro;Teshima, Kenjiro;Miyasaka, Tsutomu
两种有机卤化铅钙钛矿纳米晶体CH3NH3PbBr3和CH(3) nh3 Pbl(3)可以有效地敏化TiO2，用于光电化学电池中的可见光转换。当在介孔TiO2薄膜上自组装时，纳米晶体钙钛矿表现出较强的半导体带隙吸收。基于CH(3)NH(3)Pbl(3)的光电池光谱灵敏度高达800 nm，太阳能转换效率为3.8%。ch3nh3pbbr3基电池具有0.96 V的高光电压和65%的外量子转换效率。
Two organolead halide perovskite nanocrystals, CH3NH3PbBr3 and CH(3)NH(3)Pbl(3), were found to efficiently sensitize TiO2 for visible-light conversion in photoetectrochemical cells. When self-assembled on mesoporous TiO2 films, the nanocrystattine perovskites exhibit strong band-gap absorptions as semiconductors. The CH(3)NH(3)Pbl(3)-based photocell with spectral sensitivity of up to 800 nm yielded a solar energy conversion efficiency of 3.8%. The CH3NH3PbBr3-based cell showed a high photovoltage of 0.96 V with an external quantum conversion efficiency of 65%.