Aqueous-based recycling of perovskite photovoltaics
成果类型：
Article
署名作者：
Xiao, Xun; Xu, Niansheng; Tian, Xueyu; Zhang, Tiankai; Wang, Bingzheng; Wang, Xiaoming; Xian, Yeming; Lu, Chunyuan; Ou, Xiangyu; Yan, Yanfa; Sun, Licheng; You, Fengqi; Gao, Feng
署名单位：
Linkoping University; Cornell University; University System of Ohio; University of Toledo; University System of Ohio; University of Toledo; Westlake University; Westlake University; Westlake University; Baima Lake Laboratory; Cornell University; Cornell University; Linkoping University
刊物名称：
Nature
ISSN/ISSBN：
0028-1371
DOI：
10.1038/s41586-024-08408-7
发表日期：
2025-02-20
关键词：
total-energy calculations
life-cycle assessment
end-of-life
solar-cells
environmental-analysis
efficient
SYSTEM
ACID
摘要：
Cumulative silicon photovoltaic (PV) waste highlights the importance of considering waste recycling before the commercialization of emerging PV technologies1,2. Perovskite PVs are a promising next-generation technology3, in which recycling their end-of-life waste can reduce the toxic waste and retain resources4,5. Here we report a low-cost, green-solvent-based holistic recycling strategy to restore all valuable components from perovskite PV waste. We develop an efficient aqueous-based perovskite recycling approach that can also rejuvenate degraded perovskites. We further extend the scope of recycling to charge-transport layers, substrates, cover glasses and metal electrodes. After repeated degradation-recycling processes, the recycled devices show similar efficiency and stability compared with the fresh devices. Our holistic recycling strategy reduces by 96.6% resource depletion and by 68.8% human toxicity (cancer effects) impacts associated with perovskite PVs compared with the landfill treatment. With recycling, the levelized cost of electricity also decreases for both utility-scale and residential systems. This study highlights unique opportunities of perovskite PVs for holistic recycling and paves the way for a sustainable perovskite solar economy.