articleAdvanced MaterialsSep 11, 2014GREEN OA

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

MHMulmudi Hemant KumarDSDharani SabbaWLWei Lin LeongPPPablo P. BoixRRRajiv Ramanujam Prabhakar

Nanyang Technological University · Agency for Science, Technology and Research · +3 more institutions

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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.

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Topics & keywords

Topics
Keywords
  • Materials science
  • Perovskite (structure)
  • Halide
  • Free carrier
  • Optoelectronics
  • Modulation (music)
  • Charge carrier
  • Inorganic chemistry
UN Sustainable Development Goals
  • Affordable and clean energy
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