Bis-[60]PCBM

Fullerene derivative, such as Bis[C60]PCBM(PCBM), is widely used as an electron-transport layer (ETL) in inverted perovskite solar cell (PSC). However, its low electron mobility, complexity in achieving quality film formation, and severe nonradiative recombination at perovskite/PCBM interface due to the large electron capture region, lead to lower efficiency for inverted PSCs compared to the normal structures.[1]

bis-PCBM is a fullerene based material useful in enhancing the stability of perovskite.

[1] ZHONG Y, HUFNAGEL M, THELAKKAT M, et al. Role of PCBM in the Suppression of Hysteresis in Perovskite Solar Cells[J]. Advanced Functional Materials, 2020, 30. DOI:10.1002/adfm.201908920.