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 emb...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 ETP_(2)SbCl_(5)(ETP=(C_(6)H_(5))_(3)PC_(2)H_(5))with a reversible transition between powder and glass states.Through molecular dynamics and density functional theory,we elucidate the possible structural distortions of[SbCl_(5)]pyramids and their impact on luminescence.The fabricated LSCs,utilizing such fluorescent glasses with an efficient absorption for<420 nm,achieve the highest power conversion and optical efficiencies of~5.56%and~32.5%,respectively.In addition to self-healing by reheating at~200℃,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.展开更多
基金financially supported by the National Natural Science Foundation of China(22275101).
文摘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 ETP_(2)SbCl_(5)(ETP=(C_(6)H_(5))_(3)PC_(2)H_(5))with a reversible transition between powder and glass states.Through molecular dynamics and density functional theory,we elucidate the possible structural distortions of[SbCl_(5)]pyramids and their impact on luminescence.The fabricated LSCs,utilizing such fluorescent glasses with an efficient absorption for<420 nm,achieve the highest power conversion and optical efficiencies of~5.56%and~32.5%,respectively.In addition to self-healing by reheating at~200℃,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.
