(6,6)-Phenyl C71 butyric acid methyl ester, 99% (mixture of isomers)

Description

PC70BM is a fullerene electron acceptor commonly used in the most efficient organic photovoltaic devices. The non-symmetrical C70 cage of PC70BM enables energetic transitions that are forbidden in C60, improving the absorption characteristics over PC60BM for the visible range of the solar spectrum . This allows increased photon harvesting, and a potentially higher photocurrent for devices using PC70BM rather than PC60BM.?The 95% purity PC70BM is recommended for general applications, and has produced power conversion efficiencies of over 9% in our own laboratories when mixed with a low bandgap polymeric donor,?while the 99% PC70BM is recommended where ultimate performance is required.

Chemical properties

Light brown to black solid

The Uses of (6,6)-Phenyl C71 butyric acid methyl ester, 99% (mixture of isomers)

[70]PCBM can be blended with a variety of electron donors, which include P3HT and MDMO-PPV, for the fabrication of polymeric solar cells with a high power conversion efficiency (PCE). It can also be used in the organic field effect transistor (OFET) based applications.

General Description

[6,6]-Phenyl C₇₁?butyric acid methyl ester, mixture of isomers ([70]PCBM), is a high fullerene analog to [60]PCBM, which has an enhanced absorption of light in the visible region. It can be used in the development of electrochemical devices with a high current density.

References

[1] Hadad C, et al. Efficient Microwave-Assisted Synthesis of PCBM Methanofullerenes (C60 and C70). European Journal of Organic Chemistry, 2015; 2015: 1423-1427.
[2] Caddeo C, et al. Theoretical insight on PTB7:PC71BM, PTB7-th:PC71BM and Si-PCPDTBT:PC71BM interactions governing blend nanoscale morphology for efficient solar cells. Nano Energy, 2021; 82: 105708.