Morphological engineering of self-assembled nanostructures at nanoscale on faceted GaAs nanowires by droplet epitaxy.
Morphological engineering of self-assembled nanostructures at nanoscale on faceted GaAs nanowires by droplet epitaxy.
复制标题
通过液滴外延在多面 GaAs 纳米线上进行纳米级自组装纳米结构的形态工程
DOI:
10.1186/s11671-014-0717-y
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发表时间:
2015
影响因子:
--
通讯作者:
Niu ZC
中科院分区:
文献类型:
--
作者:
Zha GW;Zhang LC;Yu Y;Xu JX;Wei SH;Shang XJ;Ni HQ;Niu ZC
Fabrication of advanced artificial nanomaterials is a long-term pursuit to fulfill the promises of nanomaterials and it is of utter importance to manipulate materials at nanoscale to meet urgent demands of nanostructures with designed properties. Herein, we demonstrate the morphological tailoring of self-assembled nanostructures on faceted GaAs nanowires (NWs). The NWs are deposited on different kinds of substrates. Triangular and hexagonal prism morphologies are obtained, and their corresponding {110} sidewalls act as platforms for the nucleation of gallium droplets (GDs). We demonstrate that the morphologies of the nanostructures depend not only on the annealing conditions but also on the morphologies of the NWs' sidewalls. Here, we achieve morphological engineering in the form of novel quantum dots (QDs), ‘square’ quantum rings (QRs), ‘rectangular’ QRs, 3D QRs, crescent-shaped QRs, and nano-antidots. The evolution mechanisms for the peculiar morphologies of both NWs and nanostructures are modeled and discussed in detail. This work shows the potential of combining nano-structural engineering with NWs to achieve multifunctional properties and applications.
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影响因子:
4
作者:
Liang, B. L.;Wang, Zh. M.;Salamo, G. J.
通讯作者:
Salamo, G. J.
影响因子:
4
作者:
Huang, Shesong;Niu, Zhichuan;Xia, Jianbai
通讯作者:
Xia, Jianbai
影响因子:
10.8
作者:
Dick, Kimberly A.;Kodambaka, Suneel;Ross, Frances M.
通讯作者:
Ross, Frances M.
影响因子:
0.7
作者:
Khrebtov, A. I.;Talalaev, V. G.;Cirlin, G. E.
通讯作者:
Cirlin, G. E.
影响因子:
29.4
作者:
Yu, Ying;Dou, Xiu-Ming;Niu, Zhi-Chuan
通讯作者:
Niu, Zhi-Chuan