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Complete Quenching of CdSe Nanocrystal Photoluminescence by Single Dye Molecules
Author(s) -
Funston Alison M.,
Jasieniak Jacek J.,
Mulvaney Paul
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200703186
Subject(s) - nanocrystal , photoluminescence , materials science , quenching (fluorescence) , energy transfer , exciton , nanotechnology , molecule , absorption (acoustics) , conjugated system , förster resonance energy transfer , optoelectronics , fluorescence , chemical physics , optics , chemistry , polymer , organic chemistry , physics , condensed matter physics , composite material
Quantitative energy transfer from CdSe nanocrystals to a single, conjugated organic dye is observed in the system shown. The energy transfer can be modulated by altering the surface chemistry of the CdSe nanocrystal. The ability of one dye molecule to capture the exciton energy from a semiconductor nanocrystal effectively enhances the absorption cross section of the dye.