4.8 Article

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

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ADVANCED MATERIALS
卷 26, 期 41, 页码 7122-+

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WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201401991

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资金

  1. NTU start-up grant [M4081293]
  2. Singapore NRF through the Competitive Research Program [NRF-CRP4-2008-03]
  3. Singapore-Berkeley Research Initiative for Sustainable Energy (SinBeRISE) CREATE Programme
  4. European Research Council under the Advanced Research Grant Mesolight [ARG 247404]
  5. Materials Project program through the US Department of Energy, Basic Energy Sciences under DOE [EDCBEE, DE-AC02-05CH11231]

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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.

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