Premium
Light‐Harvesting Systems Based on Organic Nanocrystals To Mimic Chlorosomes
Author(s) -
Chen PengZhong,
Weng YuXiang,
Niu LiYa,
Chen YuZhe,
Wu LiZhu,
Tung ChenHo,
Yang QingZheng
Publication year - 2016
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.201510503
Subject(s) - chlorosome , chromophore , acceptor , nanocrystal , fluorescence , materials science , photochemistry , purple bacteria , energy transfer , nanotechnology , optoelectronics , chemistry , photosynthesis , photosynthetic reaction centre , bacteriochlorophyll , optics , chemical physics , electron transfer , physics , biochemistry , condensed matter physics
We report the first highly efficient artificial light‐harvesting systems based on nanocrystals of difluoroboron chromophores to mimic the chlorosomes, one of the most efficient light‐harvesting systems found in green photosynthetic bacteria. Uniform nanocrystals with controlled donor/acceptor ratios were prepared by simple coassembly of the donors and acceptors in water. The light‐harvesting system funneled the excitation energy collected by a thousand donor chromophores to a single acceptor. The well‐defined spatial organization of individual chromophores in the nanocrystals enabled an energy transfer efficiency of 95 %, even at a donor/acceptor ratio as high as 1000:1, and a significant fluorescence of the acceptor was observed up to donor/acceptor ratios of 200 000:1.