Selective dissolution of halide perovskites as a step towards recycling solar cells

Byeong Jo Kim, Dong Hoe Kim, Seung Lee Kwon, So Yeon Park, Zhen Li, Kai Zhu, Hyun Suk Jung

Research output: Contribution to journalArticlepeer-review

79 Citations (Scopus)

Abstract

Most research on perovskite solar cells has focused on improving power-conversion efficiency and stability. However, if one could refurbish perovskite solar cells, their stability might not be a critical issue. From the perspective of cost effectiveness, if failed, perovskite solar cells could be collected and recycled; reuse of their gold electrodes and transparent conducting glasses could reduce the price per watt of perovskite photovoltaic modules. Herein, we present a simple and effective method for removing the perovskite layer and reusing the mesoporous TiO2 -coated transparent conducting glass substrate via selective dissolution. We find that the perovskite layer can be easily decomposed in polar aprotic solvents because of the reaction between polar aprotic solvents and Pb 2+ cations. After 10 cycles of recycling, a mesoporous TiO2 -coated transparent conducting glass substrate-based perovskite solar cell still shows a constant power-conversion efficiency, thereby demonstrating the possibility of recycling perovskite solar cells.

Original languageEnglish
Article number11735
JournalNature communications
Volume7
DOIs
Publication statusPublished - 2016 May 23
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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