PEROVSKITE THIN-FILM PHOTOVOLTAIC CELL AND PREPARATION METHOD THEREOF
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Feb 20, 2017
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Aug 19, 2014
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A perovskite thin-film photovoltaic cell, including: a transparent conductive substrate, an electron transport layer, a perovskite absorption layer, a hole transport layer, and a metal electrode in that order. The electron transport layer is a tin dioxide thin-film. The invention also provides a method for preparing the perovskite thin-film photovoltaic cell. The method includes: (1) cleaning the transparent conductive substrate and then drying the transparent conductive substrate using nitrogen gas; (2) coating a SnO2 electron transport layer on the transparent conductive substrate; (3) coating a CH3NH3PbI3-xClx or CH3NH3PbI3 absorber on the electron transport layer; and (4) spin-coating a solution including hole transport material on the perovskite absorber layer and then evaporating the metal electrode.
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