title: Azadipyrromethene-based Zn(II) complexes as nonplanar conjugated electron acceptors for organic photovoltaics.
abstract: The effectiveness of new a electron acceptor for organic solar cells is demonstrated. The acceptor is a homoleptic zinc(II) complex of 2,6-diphenylethynyl-1,3,7,9-tetraphenylazadipyrromethene. The high power-conversion efficiency obtained is attributed to the acceptor's 3D structure, which prevents crystallization and promotes a favourable nanoscale morphology, its high Voc , and its ability to contribute to light harvesting at 600-800 nm.
authors: Department of Chemistry, Case Western Reserve University, Cleveland, OH, 44106, USA.
authors: Zhenghao
authors: Z
authors: Mao
authors: Wasana
authors: W
authors: Senevirathna
authors: Jia-Yu
authors: JY
authors: Liao
authors: Jun
authors: J
authors: Gu
authors: Sameer Vajjala
authors: SV
authors: Kesava
authors: Changhe
authors: C
authors: Guo
authors: Enrique D
authors: ED
authors: Gomez
authors: Geneviève
authors: G
authors: Sauvé
keywords: charge-carrier mobility; dyes; n-type; organic semiconductors; organic solar cells