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

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. Here, we present a simple and effective method for removing the perovskite layer and reusing the mesoporous TiO 2-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 TiO 2-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.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [2] ;  [2] ;  [1]
  1. Sungkyunkwan Univ., Suwon (Korea)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Report Number(s):
NREL/JA-5900-66604
Journal ID: ISSN 2041-1723
Grant/Contract Number:
AC36-08GO28308
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; perovskite solar cells; selective dissolution
OSTI Identifier:
1257066

Kim, Byeong Jo, Kim, Dong Hoe, Kwon, Seung Lee, Park, So Yeon, Li, Zhen, Zhu, Kai, and Jung, Hyun Suk. Selective dissolution of halide perovskites as a step towards recycling solar cells. United States: N. p., Web. doi:10.1038/ncomms11735.
Kim, Byeong Jo, Kim, Dong Hoe, Kwon, Seung Lee, Park, So Yeon, Li, Zhen, Zhu, Kai, & Jung, Hyun Suk. Selective dissolution of halide perovskites as a step towards recycling solar cells. United States. doi:10.1038/ncomms11735.
Kim, Byeong Jo, Kim, Dong Hoe, Kwon, Seung Lee, Park, So Yeon, Li, Zhen, Zhu, Kai, and Jung, Hyun Suk. 2016. "Selective dissolution of halide perovskites as a step towards recycling solar cells". United States. doi:10.1038/ncomms11735. https://www.osti.gov/servlets/purl/1257066.
@article{osti_1257066,
title = {Selective dissolution of halide perovskites as a step towards recycling solar cells},
author = {Kim, Byeong Jo and Kim, Dong Hoe and Kwon, Seung Lee and Park, So Yeon and Li, Zhen and Zhu, Kai and Jung, Hyun Suk},
abstractNote = {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. Here, 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 Pb2+ 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.},
doi = {10.1038/ncomms11735},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {2016},
month = {5}
}

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