Homogenous Alloys of Formamidinium Lead Triiodide and Cesium Tin Triiodide for Efficient Ideal-Bandgap Perovskite Solar Cells

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Yingxia Zong
  • Ning Wang
  • Lin Zhang
  • Ming-Gang Ju
  • Xiao Wei Sun
  • Yuanyuan Zhou
  • Nitin P. Padture

Detail(s)

Original languageEnglish
Pages (from-to)12658-12662
Journal / PublicationAngewandte Chemie - International Edition
Volume56
Issue number41
Publication statusPublished - 2 Oct 2017
Externally publishedYes

Abstract

The alloying behavior between FAPbI3 and CsSnI3 perovskites is studied carefully for the first time, which has led to the realization of single-phase hybrid perovskites of (FAPbI3)1−x(CsSnI3)x (0<x<1) compositions with anomalous bandgaps. (FAPbI3)1−x(CsSnI3)x perovskites exhibit stable, homogenous composition/microstructure at the nanoscale, as confirmed by microscopic characterization. The ideal bandgap of 1.3 eV for single-junction solar cell operation is achieved in the rationally-tailored (FAPbI3)0.7(CsSnI3)0.3-composition perovskite. Solar cells based on this new perovskite show power conversion efficiency up to 14.6 %.

Research Area(s)

  • alloys, bandgaps, compositions, hybrid perovskites, solar cells, thin-film photovoltaics

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Citation Format(s)

Homogenous Alloys of Formamidinium Lead Triiodide and Cesium Tin Triiodide for Efficient Ideal-Bandgap Perovskite Solar Cells. / Zong, Yingxia; Wang, Ning; Zhang, Lin et al.
In: Angewandte Chemie - International Edition, Vol. 56, No. 41, 02.10.2017, p. 12658-12662.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review