Journal
MATERIALS CHEMISTRY FRONTIERS
Volume 1, Issue 7, Pages 1406-1412Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7qm00008a
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Funding
- MIUR-FIRB [RBFR122HFZ]
- Universita di Pisa [2015_0038]
- Innovation and Technology Commission [ITC-CNERC14SC01]
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This study reports for the first time the use of a red-emitting AIEgen, i.e. TPE-AC, for the realization of efficient luminescent solar concentrators (LSCs) based on poly(methyl methacrylate) (PMMA) and polycarbonate (PC) thin films (25 +/- 5 mu m). TPE-AC is an AIEgen with D-A features that absorbs visible light in the range between 400 and 550 nm and emits fluorescence peaked at 600-620 nm, with a maximum quantum yield (QY) of 50% when dispersed (0.1-1.5 wt%) in PMMA and PC matrices. QY and lifetime investigations demonstrated that fluorescence quenching occurred with varying the TPE-AC concentration, even if the optical features were still significant even at the highest fluorophore content. Study of the LSCs' performances yielded worthy optical efficiencies of 6.7% for the TPE-AC/PC systems due to their superior light harvesting features and the compatibility of the AIEgen within the PC matrix.
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