title: Controllable synthesis of flake-like Al-doped ZnO nanostructures and its application in inverted organic solar cells.
abstract: Flake-like Al-doped ZnO (AZO) nanostructures including dense AZO nanorods were obtained via a low-temperature (100°C) hydrothermal process. By doping and varying Al concentrations, the electrical conductivity (σ) and morphology of the AZO nanostructures can be readily controlled. The effect of σ and morphology of the AZO nanostructures on the performance of the inverted organic solar cells (IOSCs) was studied. It presents that the optimized power conversion efficiency of the AZO-based IOSCs is improved by approximately 58.7% compared with that of un-doped ZnO-based IOSCs. This is attributed to that the flake-like AZO nanostructures of high σ and tunable morphology not only provide a high-conduction pathway to facilitate electron transport but also lead to a large interfacial area for exciton dissociation and charge collection by electrodes.
authors.affiliation: Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Department of Electronic Science and Technology, School of Physics and Technology, Wuhan University, Wuhan, 430072, People's Republic of China. gjfang@whu.edu.cn.
authors.forename: Xi
authors.initials: X
authors.lastname: Fan
authors.forename: Guojia
authors.initials: G
authors.lastname: Fang
authors.forename: Shishang
authors.initials: S
authors.lastname: Guo
authors.forename: Nishuang
authors.initials: N
authors.lastname: Liu
authors.forename: Huimin
authors.initials: H
authors.lastname: Gao
authors.forename: Pingli
authors.initials: P
authors.lastname: Qin
authors.forename: Songzhan
authors.initials: S
authors.lastname: Li
authors.forename: Hao
authors.initials: H
authors.lastname: Long
authors.forename: Qiao
authors.initials: Q
authors.lastname: Zheng
authors.forename: Xingzhong
authors.initials: X
authors.lastname: Zhao