Chlorine Incorporation for Enhanced Performance of Planar Perovskite Solar Cell Based on Lead Acetate Precursor

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)23110-23116
Journal / PublicationACS Applied Materials and Interfaces
Volume7
Issue number41
Publication statusPublished - 21 Oct 2015

Abstract

We show the effects of chlorine incorporation in the crystallization process of perovskite film based on a lead acetate precursor. We demonstrate a fabrication process for fast grain growth with highly preferred {110} orientation upon only 5 min of annealing at 100 °C. By studying the correlation between precursor composition and morphology, the growth dynamic of perovskite film in the current system is discussed. In particular, we found that both lead acetate precursor and Cl incorporation are beneficial to perovskite growth. While lead acetate allows fast crystallization process, Cl improves perovskite crystallinity. Planar perovskite solar cells with optimized parameters deliver a best power conversion efficiency of 15.0% and average efficiency of 14.0% with remarkable reproducibility and good stability.

Research Area(s)

  • chlorine incorporation, crystallinity, grain size, lead acetate, perovskite solar cells, solvent annealing

Citation Format(s)

Chlorine Incorporation for Enhanced Performance of Planar Perovskite Solar Cell Based on Lead Acetate Precursor. / Qing, Jian; Chandran, Hrisheekesh-Thachoth; Cheng, Yuan-Hang; Liu, Xiao-Ke; Li, Ho-Wa; Tsang, Sai-Wing; Lo, Ming-Fai; Lee, Chun-Sing.

In: ACS Applied Materials and Interfaces, Vol. 7, No. 41, 21.10.2015, p. 23110-23116.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review