Xiaosheng FANG
材料科学技术（英文）
One-dimensional (1D) nanomaterials and nanostructures have received much attention due to their potential interest for understanding fundamental physical concepts and for applications in constructing nanoscale electric and optoelectronic devices. Zinc sulfide (ZnS) is an important semiconductor compound of II-VI group, and the synthesis of 1D ZnS nanomaterials and nanostructures has been of growing interest owing to their promising application in nanoscale optoelectronic devices. This paper reviews the recent progress on 1D ZnS nanomaterials and nanostructures, including nanowires, nanowire arrays, nanorods, nanobelts or nanoribbons, nanocables, and hierarchical nanostructures etc. This article begins with a survey of various methods that have been developed for generating 1D nanomaterials and nanostructures, and then mainly focuses on structures, synthesis, characterization, formation mechanisms and optical property tuning, and luminescence mechanisms of 1D ZnS nanomaterials and nanostructures. Finally, this review concludes with personal views towards future research on 1D ZnS nanomaterials and nanostructures.
关键词:
One-dimensional
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ZnS
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Nanomaterials
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Nanost
L.L.Wang
,
L.H.Zhao
,
W.Y.Hu
,
X.L.Shu
,
X.J.Yuan
,
B.W.Zhang and X.Sheng Department of Applied Physics
,
Hunan University
,
Changsha 410082
,
China
金属学报(英文版)
Manuscript received 24 June 1999 The Fe Al P alloy deposits were plated on copper sheets by electroless plating. The change law of the deposition rate, composition, surface appearance and structure for the deposits was studied by changing the metallic salt ratios (AlCl 3/AlCl 3+FeSO 4), the concentration of metallic salt AlCl 3 and reductant NaH 2PO 2. The optimum plating bath was obtained. It was found that the choices of ligand and reductant were the key of increasing Al content for the deposits.
关键词:
electroless Fe Al P plating
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null
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null
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null
Materials Letters
Structure and microstructures in the thin films of La1-xSrxMnO3 (x = 0.1, 0.2, 0.3), prepared by computer-controlled laser molecular-beam epitaxy on SrTiO3 substrate, have been characterized by transmission electron microscopy (TEM). Electron diffractions and high-resolution imaging reveal that the as-received thin films with thickness of 200 nm are epitaxially grown on the SrTiO3 (001) substrate. The as-prepared La1-xSrxMnO3 compounds are structural variants derived from the perovskite structure. The microstructures in all these films are clarified in terms of the oriented microdomains, which are believed to result from the strain relaxation between hetero-epitaxial systems. The functions between doping volume and their microstructural characteristics have been established on the basis of the electron microscopic studies. (C) 2003 Elsevier B.V. All rights reserved.
关键词:
La1-xSrxMnO3;transmission electron microscopy;electron diffraction;molecular-beam epitaxy;transmission electron-microscopy;magnetoresistance;srtio3;heterostructures;microdomains;system
