[70]PCBM

• CAT Number: M440054
• CAS Number: 609771-63-3
• Molecular Formula: C82H14O2
• Molecular Weight: 1031.00
• Purity: 99%
• Synonyms: [6,6]-Phenyl-C71-butyric acid methyl ester, C70 PCBM, PC71BM, [70]PCBM
• Storage: Room Temperature (Recommended in a cool and dark place)

[6,6]-Phenyl-C71-butyric acid methyl ester (PC70BM) is a high-performance fullerene derivative widely employed as an electron acceptor in organic photovoltaic (OPV) devices. Its non-symmetrical C70 cage introduces energetic transitions forbidden in C60, yielding superior absorption in the visible range of the solar spectrum. This enhanced light-harvesting ability translates into higher photocurrents and improved device efficiencies compared to PC60BM. In OPV studies, PC70BM has achieved power conversion efficiencies exceeding 9% when paired with low bandgap polymer donors. Available in 95% purity for general applications or 99% purity for maximum performance, PC70BM is a benchmark acceptor in advanced solar cell research.