Publication

Lead-Free Halide Perovskite Solar Cells with High Photocurrents Realized Through Vacancy Modulation

Michael Graetzel, Nripan Mathews
2014
Journal paper

Abstract

Lead free perovskite solar cells based on a CsSnI3 light absorber with a spectral response from 950 nm is demonstrated. The high photocurrents noted in the system are a consequence of SnF2 addition which reduces defect concentrations and hence the background charge carrier density.

Official source

https://infoscience.epfl.ch/record/204052?ln=en

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Lead-Free Halide Perovskite Solar Cells with High Photocurrents Realized Through Vacancy Modulation

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How far does the defect tolerance of lead-halide perovskites range? The example of Bi impurities introducing efficient recombination centers

How far does the defect tolerance of lead-halide perovskites range? The example of Bi impurities introducing efficient recombination centers