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Mixed cation thiocyanate-based pseudohalide perovskite solar cells with high efficiency and stability

  • Yu Hsien Chiang
  • , Ming Hsien Li
  • , Hsin Min Cheng
  • , Po Shen Shen
  • , Peter Chen

Research output: Contribution to journalArticlepeer-review

Abstract

Novel organic-inorganic hybrid perovskite compounds composed of mixed A-site cation (Formamidinium and Cesium) and pseudohalides (SCN and I) ions are successfully synthesized. These new classes of hybrid perovskites photovoltaics exhibited remarkable power conversion efficiency of more than 16% with excellent stability against moisture in ambient environment and under low-light storage condition. The existence of SCN- ion inclusion is confirmed by secondary ion mass spectrometry and Fourier transform infrared spectroscopy. The SCN--doped pseudohalide is advantageous for the formation of large perovskite grains, as well as the performance and stability of the device. (Graph Presented).

Original languageEnglish
Pages (from-to)2403-2409
Number of pages7
JournalACS Applied Materials and Interfaces
Volume9
Issue number3
DOIs
Publication statusPublished - 2017 Jan 25

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

All Science Journal Classification (ASJC) codes

  • General Materials Science

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