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Re‐evaluating the Role of Sterics and Electronic Coupling in Determining the Open‐Circuit Voltage of Organic Solar Cells
Author(s) -
Graham Kenneth R.,
Erwin Patrick,
Nordlund Dennis,
Vandewal Koen,
Li Ruipeng,
Ngongang Ndjawa Guy O.,
Hoke Eric T.,
Salleo Alberto,
Thompson Mark E.,
McGehee Michael D.,
Amassian Aram
Publication year - 2013
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.201301319
Subject(s) - open circuit voltage , organic solar cell , materials science , coupling (piping) , charge (physics) , voltage , photovoltaic system , engineering physics , optoelectronics , nanotechnology , electrical engineering , physics , particle physics , engineering , metallurgy
The effects of sterics and molecular orientation on the open‐circuit voltage and absorbance properties of charge‐transfer states are explored in model bilayer organic photovoltaics. It is shown that the open‐circuit voltage correlates linearly with the charge‐transfer state energy and is not significantly influenced by electronic coupling.