4.6 Article

Formamidinium tin-based perovskite with low E-g for photovoltaic applications

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 29, Pages 14996-15000

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta00190k

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A lead-free low bandgap organic-inorganic hybrid perovskite, formamidinium tin iodide, is utilized as a light absorbing layer in photovoltaics. This material has a bandgap of 1.41 eV which allows light harvesting from the near infrared region, making high photocurrents achievable. A power conversion efficiency of 2.10% was accomplished upon incorporating SnF2.

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