Atomistic Interface Dynamics in Sn-Catalyzed Growth of Wurtzite and Zinc-Blende ZnO Nanowires

• DOI: 10.1021/acs.nanolett.8b00420
• Publication Date: 2018-06-07T22:26:26Z
• Authors: Shuangfeng Jia; Shuaishuai Hu; He Zheng; Yanjie Wei; Shuang Meng; Huaping Sheng; Huihui Liu; Siyuan Zhou; Dongshan Zhao; Jianbo Wang
• Keywords: Wurtzite crystal structure; Dynamics

Unraveling the phase selection mechanisms of semiconductor nanowires (NWs) is critical for applications in future advanced nanodevices. In this study, atomistic vapor–solid–liquid growth processes Sn-catalyzed wurtzite (WZ) and zinc blende (ZB) ZnO are directly revealed based on situ transmission electron microscopy. The kinetics WZ ZB crystal phases appear markedly different terms NW–droplet interface, whereas nucleation site as determined by contact angle ϕ between seed particle NW found to be crucial tuning structure through combined experimental theoretical investigations. These results offer an atomic-scale view into dynamic process NW, which has implications phase-controllable synthesis II–VI compounds heterostructures with tunable band structures.