Luminescent solar concentrators based on PMMA films obtained from a red-emitting ATRP initiator†,Polymer Chemistry

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Luminescent solar concentrators based on PMMA films obtained from a red-emitting ATRP initiator†
Polymer Chemistry ( IF 4.1 ) Pub Date : 2018-01-15 00:00:00 , DOI: 10.1039/c7py01933e
Riccardo Mori _{1,

2,

3,

4} , Giuseppe Iasilli _{1,

2,

3,

4} , Marco Lessi _{1,

2,

3,

4} , Ana Belén Muñoz-García _{4,

5,

6} , Michele Pavone _{4,

5,

6} , Fabio Bellina _{1,

2,

3,

4} , Andrea Pucci _{1,

2,

3,

4}

Affiliation

This study examines for the first time the use of an aggregation-induced emission luminogen (AIEgen, TPE_RED) as an initiator to prepare red-emitting poly(methyl methacrylate) (PMMA) polymers, i.e. PMMA_TPE_RED, for the realization of high performance luminescent solar concentrators (LSCs). TPE_RED is a photostable red-emitting AIEgen with D–A features and a 2-bromo-2-methylpropanoate unit able to initiate the ATRP polymerization of MMA. PMMA_TPE_RED polymers containing 0.98–3.05 wt% of TPE_RED absorb visible light in the range between 400 and 600 nm, and emit fluorescence at around 610–650 nm when aggregated in solution or in the solid state, with a maximum quantum yield (QY) of 26.5%. PMMA_TPE_RED films experience partial fluorescence quenching with the TPE_RED content possibly due to auto-absorption phenomena and the formation of less emissive micro-sized clusters of chromophoric entities. Physical blending of PMMA_TPE_RED with commercially available PMMA provides a film with a smooth texture and LSCs with optical efficiencies of 10% thanks to the superior light harvesting features of the homogeneously distributed AIEgen.

中文翻译：

基于从发红光的ATRP引发剂获得的PMMA薄膜的发光太阳能聚光器†

这项研究首次研究了使用聚集诱导的发光源（AIEgen，TPE_RED）作为引发剂来制备发红光的聚甲基丙烯酸甲酯（PMMA）聚合物，即PMMA_TPE_RED，用于实现高性能发光太阳能集中器（LSC）。TPE_RED是具有D–A特性的光稳定发红光的AIEgen，具有能够引发MMA的ATRP聚合的2-溴-2-甲基丙酸酯单元。含有0.98–3.05 wt％TPE_RED的PMMA_TPE_RED聚合物吸收400至600 nm范围内的可见光，并在溶液或固态下聚集时发出约610–650 nm的荧光，最大量子产率（QY）为26.5％。PMMA_TPE_RED膜可能会经历部分荧光淬灭，其TPE_RED含量可能是由于自吸收现象和发色性实体的较小发射微团簇的形成所致。

更新日期：2018-01-15

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