Lead-free thermochromic perovskites with tunable transition temperatures for smart window applications

Jingwen Li, Xiaolong Liu, Peixin Cui, Junmeng Li, Tao Ye, Xi Wang, Chuang Zhang, Yong Sheng Zhao

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

The structural flexibility of hybrid perovskite materials allows for phase transition and consequently thermochromic properties. Here we investigate the thermochromic performance in a series of copper-based layered perovskites with organic cations having different alky chain lengths. Their transition temperature is found to be dependent on the organic cations due to molecular motion and hydrogen bond interaction, providing possibilities to prepare thermochromic semiconductors near room temperature for smart window applications.

Original languageEnglish
Pages (from-to)1257-1262
Number of pages6
JournalScience China Chemistry
Volume62
Issue number9
DOIs
StatePublished - 1 Sep 2019
Externally publishedYes

Keywords

  • alkyl ammonium ions
  • layered structures
  • lead-free perovskites
  • smart windows
  • thermochromic transition

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