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Issue 10, 2018
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Luminescent solar concentrators based on PMMA films obtained from a red-emitting ATRP initiator

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Abstract

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.

Graphical abstract: Luminescent solar concentrators based on PMMA films obtained from a red-emitting ATRP initiator

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Publication details

The article was received on 18 Nov 2017, accepted on 14 Jan 2018 and first published on 15 Jan 2018


Article type: Paper
DOI: 10.1039/C7PY01933E
Citation: Polym. Chem., 2018,9, 1168-1177
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    Luminescent solar concentrators based on PMMA films obtained from a red-emitting ATRP initiator

    R. Mori, G. Iasilli, M. Lessi, A. B. Muñoz-García, M. Pavone, F. Bellina and A. Pucci, Polym. Chem., 2018, 9, 1168
    DOI: 10.1039/C7PY01933E

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