title: Cyclic thiourea/urea functionalized triphenylamine-based dyes for high-performance dye-sensitized solar cells.
abstract: Six cyclic thiourea/urea functionalized triphenylamine-based dyes (AZ1-AZ6) containing 2-cyanoacrylic acid as an acceptor and various linkers (phenyl, biphenyl, and bithiophene) were synthesized. They exhibited high photovoltaic performance owing to an improved short-circuit photocurrent density (J(sc)) and open-circuit voltage (V(oc)). Among them, AZ6 bearing a cyclic thiourea group and bithiophene linker showed the highest power conversion efficiency (PCE) up to 7.29%, which was comparable to that of N719 (PCE = 7.36%).
authors.affiliation: Key Laboratory of Applied Surface and Colloid Chemistry (MOE), School of Materials Science and Engineering, Shaanxi Normal University, 710162, PR China.
authors.forename: Zhisheng
authors.initials: Z
authors.lastname: Wu
authors.forename: Zhongwei
authors.initials: Z
authors.lastname: An
authors.forename: Xinbing
authors.initials: X
authors.lastname: Chen
authors.forename: Pei
authors.initials: P
authors.lastname: Chen