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Long‐Range Resonant Energy Transfer for Enhanced Exciton Harvesting for Organic Solar Cells
Author(s) -
Scully S. R.,
Armstrong P. B.,
Edder C.,
Fréchet J. M. J.,
McGehee M. D.
Publication year - 2007
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.200700917
Subject(s) - materials science , exciton , organic solar cell , acceptor , range (aeronautics) , optoelectronics , energy transfer , photovoltaics , singlet state , diffusion , yield (engineering) , energy (signal processing) , photovoltaic system , chemical physics , atomic physics , polymer , condensed matter physics , excited state , thermodynamics , electrical engineering , physics , engineering , composite material , quantum mechanics , metallurgy
We present theory and experiment demonstrating a scheme to harvest singlet excitons over 25 nm away from a donor‐acceptor interface using resonant energy transfer. Improvement in materials choice could yield effective diffusion lengths as large as 40 nm using long‐range transfer, while minimizing the energy loss to less than 0.1 eV making this a promising approach for developing highly efficient organic photovoltaics.