Sustainable Recycling of Perovskite Solar Cells: Green Solvent-Based Recovery of ITO Substrates

IF 1.5 4区 化学 Q4 CHEMISTRY, PHYSICAL
Sun-Ju Kim, Eun-Ju Jeong, Ji-Youn Seo
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Abstract

Perovskite solar cells (PSCs) emerge as a leading next-generation photovoltaic (PV) technology, with power conversion efficiencies (PCEs) reaching 26.7% for single cells and 36.1% for hybrid tandem cells. As commercialization progresses, the inverted (p–i–n) structure of PSCs gains attention due to its enhanced thermal stability, lower moisture sensitivity, and reduced processing temperatures compared to the conventional (n–i–p) structure. However, sustainability concerns, particularly regarding production costs and end-of-life disposal, become increasingly critical. Recycling PSCs provides a viable solution to these challenges by recovering valuable indium tin oxide (ITO) substrates, which significantly impact material costs. Existing recycling methods for conventional PSCs often use toxic solvents like chlorobenzene (CB) and N,N-dimethylformamide (DMF), posing environmental and health risks. This study introduces an eco-friendly recycling process for ITO-based inverted PSCs using acetone as a green solvent. The results show that recycled ITO substrates maintain their physical, electrical, and optical properties without significant degradation in PSC performance, even after multiple recycling cycles. This green solvent-based approach not only preserves device efficiency but also supports future environmental regulations, highlighting its potential in promoting sustainable and cost-effective PV technologies.

钙钛矿太阳能电池的可持续回收:ITO衬底的绿色溶剂基回收
钙钛矿太阳能电池(PSCs)作为下一代光伏(PV)技术的领导者,其单电池的功率转换效率(pce)达到26.7%,混合串联电池的功率转换效率(pce)达到36.1%。随着商业化的推进,与传统的(n-i-p)结构相比,PSCs的倒(p-i-n)结构由于其增强的热稳定性、较低的湿度敏感性和较低的加工温度而受到关注。然而,可持续性问题,特别是关于生产成本和使用寿命结束后的处理,变得越来越重要。通过回收有价值的氧化铟锡(ITO)衬底,回收psc为这些挑战提供了可行的解决方案,这对材料成本产生了重大影响。现有的传统PSCs回收方法通常使用氯苯(CB)和N,N-二甲基甲酰胺(DMF)等有毒溶剂,造成环境和健康风险。本研究介绍了一种以丙酮为绿色溶剂的ito基倒置聚氯乙烯的环保回收工艺。结果表明,即使经过多次回收循环,回收的ITO衬底也能保持其物理、电学和光学性能,而不会显著降低PSC性能。这种基于溶剂的绿色方法不仅保持了设备效率,而且支持未来的环境法规,突出了其在促进可持续和具有成本效益的光伏技术方面的潜力。
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来源期刊
CiteScore
3.30
自引率
6.70%
发文量
74
审稿时长
3 months
期刊介绍: As the leading archival journal devoted exclusively to chemical kinetics, the International Journal of Chemical Kinetics publishes original research in gas phase, condensed phase, and polymer reaction kinetics, as well as biochemical and surface kinetics. The Journal seeks to be the primary archive for careful experimental measurements of reaction kinetics, in both simple and complex systems. The Journal also presents new developments in applied theoretical kinetics and publishes large kinetic models, and the algorithms and estimates used in these models. These include methods for handling the large reaction networks important in biochemistry, catalysis, and free radical chemistry. In addition, the Journal explores such topics as the quantitative relationships between molecular structure and chemical reactivity, organic/inorganic chemistry and reaction mechanisms, and the reactive chemistry at interfaces.
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