title: Artificial leaf structures as a UV detector formed by the self-assembly of ZnO nanoparticles.
abstract: Artificial leaf structures have been fabricated by the self-assembly of ZnO nanoparticles. A hydrothermal method was used to synthesize the nanoparticles. The self-assembly patterns showed asymmetric dendritic morphologies, larger surface-to-volume ratios, a broad absorption band and high resistance. A non-equilibrium two-stage-formation process included diffusion limited aggregation, and the phase-field model was introduced to explain the formation mechanism of the pattern. A high-performance ultraviolet detector was fabricated on the artificial leaf structures, which showed that the current under the irradiation of a UV lamp (1.21 mW cm(-2)) was about 10(4) times greater than in the dark. The various and functional properties of the pattern show us the vast prospects of potential applications for light harvesting systems and other optical-electric devices.
authors: State key laboratory of luminescence and applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 3888 Dongnanhu Road, Changchun 130033, People's Republic of China.
authors: Fei
authors: F
authors: Wang
authors: Dongxu
authors: D
authors: Zhao
authors: Zhen
authors: Z
authors: Guo
authors: Lei
authors: L
authors: Liu
authors: Zhenzhong
authors: Z
authors: Zhang
authors: Dezhen
authors: D
authors: Shen