南开大学李希艳团队近日研究了由无铅钙钛矿衍生物制成的可回收发光太阳能聚光器。相关论文于2025年8月28日发表在《光：科学与应用》杂志上。

发光太阳能聚光器（LSCs）为荧光玻璃发电提供了一种可持续的方法，但其绿色环保化受到生产规模的限制和嵌入纳米晶体的不可回收性的阻碍。

研究组引入了一种无铅钙钛矿衍生物ETP₂SbCl₅ (ETP = (C₆H₅)₃PC₂H₅)，具有粉末和玻璃态之间的可逆转变。通过分子动力学和密度泛函理论，他们阐明了[SbCl₅]金字塔可能的结构畸变及其对发光的影响。利用这种荧光玻璃制造的LSCs，其有效吸收为<420nm，实现最高的功率转换和光效率分别为~5.56%和~32.5%。

除了通过在约200℃下重新加热进行自我修复外，令人印象深刻的是，它还可以通过乙醇或加热处理大规模回收为荧光粉，这仍然保持了接近初始的荧光性能，并且可以像新合成的样品一样重新利用。这项工作为荧光材料的可持续主题提供了一个范例，并为低碳全球化提供了一条可靠的途径。

附：英文原文

Title: Recyclable luminescent solar concentrator from lead-free perovskite derivative

Author: Yang, Huanxin, Lu, Haolin, Wang, Xuejiao, Sun, Wenda, Yang, Yujing, Xiong, Wei, Long, Guankui, Xu, Jialiang, Zhang, Xiaodan, Yuan, Mingjian, Li, Xiyan

Issue&Volume: 2025-08-28

Abstract: Luminescent solar concentrators (LSCs) offer a sustainable approach to power generation using fluorescent glasses, yet their green industrialization is impeded by the limited production scale and non-recyclability of embedded nanocrystals. Here, we introduce a lead-free perovskite derivative ETP2SbCl5 (ETP = (C6H5)3PC2H5) with a reversible transition between powder and glass states. Through molecular dynamics and density functional theory, we elucidate the possible structural distortions of [SbCl5] pyramids and their impact on luminescence. The fabricated LSCs, utilizing such fluorescent glasses with an efficient absorption for <420nm, achieve the highest power conversion and optical efficiencies of ~5.56% and ~32.5%, respectively. In addition to self-healing by reheating at ~200°C, impressively, it could be mass recycled to phosphor by ethanol or heating treatments, which still maintains nearly initial fluorescent performance and could be repurposed like freshly synthesized samples. This work presents a paradigm for the sustainable use of fluorescent materials and offers a reliable path toward low-carbon globalization.

DOI: 10.1038/s41377-025-01973-0

Source: https://www.nature.com/articles/s41377-025-01973-0