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Temperature‐Responsive Luminescent Solar Concentrators: Tuning Energy Transfer in a Liquid Crystalline Matrix
Author(s) -
Sol Jeroen A. H. P.,
Dehm Volker,
Hecht Reinhard,
Würthner Frank,
Schenning Albertus P. H. J.,
Debije Michael G.
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201710487
Subject(s) - förster resonance energy transfer , luminescence , materials science , acceptor , perylene , solvent , liquid crystal , energy transfer , optoelectronics , chemical physics , photochemistry , fluorescence , optics , chemistry , organic chemistry , physics , condensed matter physics
Temperature‐responsive luminescent solar concentrators (LSCs) have been fabricated in which the Förster resonance energy transfer (FRET) between a donor–acceptor pair in a liquid crystalline solvent can be tuned. At room temperatures, the perylene bisimide (PBI) acceptor is aggregated and FRET is inactive; while after heating to a temperature above the isotropic phase of the liquid crystal solvent, the acceptor PBI completely dissolves and FRET is activated. This unusual temperature control over FRET was used to design a color‐tunable LSC. The device has been shown to be highly stable towards consecutive heating and cooling cycles, making it an appealing device for harvesting otherwise unused solar energy.