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US 10,319,914 B2Granted
Fullerene mixtures for use in organic electronic devices
AssigneeMerck Patent GmbH
InventorsGraham Morse, Jonathan Henry Wilson, Nicolas Blouin, Solene Bechu
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Abstract
The invention relates to novel mixtures of substituted fullerenes, to their use in organic electronic (OE) devices, especially organic photovoltaic (OPV) devices and organic photodetectors (OPD), and to OE, OPV and OPD devices comprising these fullerene mixtures.
Claims20
A mixture comprising
- a first compound of formula I1
- wherein Cn is a fullerene in which n=60,
- o is 1 or 2, one substituent R is benzene, and the other substituent R is an ester group of formula C-34
- wherein a is 3, and R11 is methyl, and
- a second compound of formula I1, wherein o is 1 or 2, one substituent R is benzene, and the other substituent R is an ester group of formula C-34, wherein a is 3 and R11 is ethyl, propyl, butyl, pentyl or hexyl.
2 more elements
Dependencies are inferred from the claim text.