Royal Society of Chemistry, Journal of Materials Chemistry A: materials for energy and sustainability, 20(7), p. 12507-12517, 2019
DOI: 10.1039/c9ta01681c
Full text: Unavailable
New small molecules based on 9,9-bis(4-diphenylaminophenyl)fluorene functionalized with triphenylamine moieties are developed for use as dopant-free hole transporting materials (HTMs) in planar inverted perovskite solar cells. Power conversion efficiencies (PCE) as high as 17.1% are obtained with good stability.