Description
C70PCBM is a fullerene derivative widely used as an electron acceptor material in organic photovoltaics and organic electronics. It consists of a C70 fullerene cage functionalized with a phenyl-butyric acid methyl ester side chain, which enhances solubility in common organic solvents and enables solution processing.
C70PCBM offers superior visible light absorption compared to C60PCBM due to the lower symmetry of the C70 cage. This enhanced absorption in the 400-600 nm range can improve power conversion efficiency in organic solar cells, particularly when paired with polymer donors that have limited absorption in this region.
Chemical Name
[6,6]-Phenyl C71 butyric acid methyl ester, mixture of isomers
Synonym(s): 3′H-Cyclopropa[8,25] [5,6]fullerene-C70-D5h(6)-3′butanoic acid, 3′Phenyl-3′H-cyclopropa[8,25] [5,6]fullerene-C70-D5h(6)-3′butanoic acid, methyl ester, [70]PCBM
CAS#
609771-63-3
Chemical Formula
C82H14O2
Purity (HPLC)
≥98%
Appearance & Color
Black to light-brown powder
Molecular Weight (g/mol)
1030.99
Solubility
Soluble in organic solvents: toluene, o-dichlorobenzene, o-xylene, mesitylene
Electronic Properties
Orbital Energy
HOMO -5.9 e V
LUMO -4.3 eV
Application
Electron acceptors, n-type semiconductors, interface layers
Download Datasheet
Download MSDS
Description
C70PCBM is a fullerene derivative widely used as an electron acceptor material in organic photovoltaics and organic electronics. It consists of a C70 fullerene cage functionalized with a phenyl-butyric acid methyl ester side chain, which enhances solubility in common organic solvents and enables solution processing.
C70PCBM offers superior visible light absorption compared to C60PCBM due to the lower symmetry of the C70 cage. This enhanced absorption in the 400-600 nm range can improve power conversion efficiency in organic solar cells, particularly when paired with polymer donors that have limited absorption in this region.
Chemical Name
[6,6]-Phenyl C71 butyric acid methyl ester, mixture of isomers
Synonym(s): 3′H-Cyclopropa[8,25] [5,6]fullerene-C70-D5h(6)-3′butanoic acid, 3′Phenyl-3′H-cyclopropa[8,25] [5,6]fullerene-C70-D5h(6)-3′butanoic acid, methyl ester, [70]PCBM
CAS#
609771-63-3
Chemical Formula
C82H14O2
Purity (HPLC)
≥98%
Appearance & Color
Black to light-brown powder
Molecular Weight (g/mol)
1030.99
Solubility
Soluble in organic solvents: toluene, o-dichlorobenzene, o-xylene, mesitylene
Electronic Properties
Orbital Energy
HOMO -5.9 e V
LUMO -4.3 eV
Application
Electron acceptors, n-type semiconductors, interface layers
Download Datasheet
Download MSDS
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