Benzotrithiophene-Based Hole-Transporting Materials for 18.2% Perovskite Solar Cells
• New star-shaped benzotrithiophene (BTT)-based hole-transporting materials (HTM) BTT-1, BTT-2 and BTT-3 have been obtained through a facile synthetic route by crosslinking triarylamine-based donor groups with a benzotrithiophene (BTT) core. The BTT HTMs were tested on soln.-processed lead trihalide perovskite-based solar cells. Power conversion efficiencies at 16-18.2% were achieved under AM 1.5 sun with the 3 derivs. These values are comparable to those obtained with today's most commonly used HTM spiro-OMeTAD, which point them out as promising candidates to be used as readily available and..
Record created on 2016-09-10, modified on 2016-09-10