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<p>Luminescent solar concentrators (LSCs) hold great potential as versatile energy conversion systems for diverse applications. Here, we explore the covalent incorporation of aggregation-induced emission (AIE) luminogens into polymeric backbones for LSCs. Copolymers based on methyl-methacrylate and an AIE-active monomer (tetraphenyl ethylene methacrylate - TPEMA) are synthesized using free radical (FR) and reversible addition-fragmentation chain transfer (RAFT) polymerizations. By integrating TPEMA into the polymer structure, we exploit its unique emission properties when the AIE<i>gens</i> are in close proximity. RAFT polymerization affords copolymers with narrower molecular weight distribution, improved thermal stability, higher glass transition temperature, and optical properties that scale positively with TPEMA content, outperforming FR analogues. RAFT-based LSC devices exhibit more consistent performance, underscoring the importance of controlled polymerization on AIE<i>gen</i> response and device behavior. This study demonstrates an effective strategy to enhance LSC response through synthetic control of the macromolecular network and strategic incorporation of AIE<i>gens</i> into luminescent polymer matrices.</p><p></p>

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Tailoring aggregation-induced emission in luminescent solar concentrators through controlled polymerization

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年10月17日

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  • Elisavet Tatsi,
  • Gaia Roberta Ragno,
  • Andrea Nitti,
  • Chiara Botta,
  • Stefano Turri,
  • Dario Pasini,
  • Gianmarco Griffini

摘要

Luminescent solar concentrators (LSCs) hold great potential as versatile energy conversion systems for diverse applications. Here, we explore the covalent incorporation of aggregation-induced emission (AIE) luminogens into polymeric backbones for LSCs. Copolymers based on methyl-methacrylate and an AIE-active monomer (tetraphenyl ethylene methacrylate - TPEMA) are synthesized using free radical (FR) and reversible addition-fragmentation chain transfer (RAFT) polymerizations. By integrating TPEMA into the polymer structure, we exploit its unique emission properties when the AIEgens are in close proximity. RAFT polymerization affords copolymers with narrower molecular weight distribution, improved thermal stability, higher glass transition temperature, and optical properties that scale positively with TPEMA content, outperforming FR analogues. RAFT-based LSC devices exhibit more consistent performance, underscoring the importance of controlled polymerization on AIEgen response and device behavior. This study demonstrates an effective strategy to enhance LSC response through synthetic control of the macromolecular network and strategic incorporation of AIEgens into luminescent polymer matrices.