Nanosecond intersystem crossing times in fullerene acceptors: implications for organic photovoltaic diodes.
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ABSTRACT:
SUBMITTER: Chow PC
PROVIDER: S-EPMC4515088 | biostudies-other | 2014 Jul
REPOSITORIES: biostudies-other
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Nanosecond intersystem crossing times in fullerene acceptors: implications for organic photovoltaic diodes.
Chow Philip C Y PC Albert-Seifried Sebastian S Gélinas Simon S Friend Richard H RH
Advanced materials (Deerfield Beach, Fla.) 20140606 28
Triplet-exciton formation through intersystem crossing of photogenerated singlet excitons in fullerene acceptors can compete with charge generation in organic photovoltaic diodes. This article reports the intersystem crossing timescale (τISC ) of the most commonly used fullerene acceptors, PC60 BM and PC70 BM, in solutions and in spin-coated films. These times are on the nanosecond timescale, and are longer than the characteristic times for charge generation (τd ). ...[more]
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