Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
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- 14 April 2009
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 131 (17), 6050-6051
- https://doi.org/10.1021/ja809598r
Abstract
Two organolead halide perovskite nanocrystals, CH3NH3PbBr3 and CH3NH3PbI3, were found to efficiently sensitize TiO2 for visible-light conversion in photoelectrochemical cells. When self-assembled on mesoporous TiO2 films, the nanocrystalline perovskites exhibit strong band-gap absorptions as semiconductors. The CH3NH3PbI3-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%.This publication has 20 references indexed in Scilit:
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