期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 12, 期 19, 页码 4735-4741出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.1c00735
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资金
- National Natural Science Foundation of China (NSFC) [61775091]
- Shenzhen Key Laboratory Project [ZDSYS201602261933302]
- Science, Technology and Innovation Commission of Shenzhen Municipality [JCYJ20180504165851864]
- Science and Technology Development Fund from Macau SAR [199/2017/A3, 0125/2018/A3, 0038/2019/A1]
- University of Macau [MYRG2017-00149-FST, MYRG2019-00103-IAPME]
This study introduces a highly reliable two-step process to recycle cost-dominated ITO substrates coated with NiOx for PSCs by using dialkylamines. The champion recycled PSC achieved a higher conversion efficiency than the fresh one, and the regenerated devices performed superior to the fresh ones in the first 7 out of 10 recycles, providing a promising strategy for the recycling of PSCs.
Because of the toxicity of water-soluble lead, the recycling of organic-inorganic lead-halides perovskite solar cells (PSCs) has attracted increasing attention. Here, we report a highly reliable two-step process to recycle cost-dominated indium-tin-oxide (ITO) substrates coated with NiOx and regenerate their based PSCs by function of dialkylamines. The champion recycled PSC can achieve 20% in conversion-efficiency, higher than 17.92% of the fresh one. MEW Strikingly, the regenerated devices can remain superior to the fresh ones in the first 7 of 10 recycles. The comprehensive X-ray photoelectronic spectroscopy analysis reveals that dipropylamine has a suitable interaction with NiOx surfaces by Ni-N coordination, enabling its effective interfacial passivation and template effect of high-quality growth of perovskites. That leads to the suppressed nonradiative recombination of both interfacial and bulk, and finally improves the device performances. The dialkylamines driven two-step recycling process offers a promising and highly reproducible strategy to recycle PSCs, especially the cost-dominated NiOx/ITO substrates.
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