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Highly Ordered Lattice Orientation of ZnO Nanoparticles Formed in Confined Space
Shu-mei Dou,Qiao-hong Liu,Wen-lou *,Xian-ming Liu
Author NameAffiliationE-mail
Shu-mei Dou Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China wlwang@ustc.edu.cn 
Qiao-hong Liu Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China wlwang@ustc.edu.cn 
Wen-lou * Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China wlwang@ustc.edu.cn 
Xian-ming Liu Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China wlwang@ustc.edu.cn 
Abstract:
Oriented aggregation of nanoparticles has been accomplished by means of solid state reac-tion. Non-crystallized and crystallized ZnO nanoparticles/clusters could be accommodated in the lamellar spacing of inorganic-organic composite, which were prepared by thermolysis of layered solid zinc-oleate complex at 260 and 300 oC in air, respectively. High-resolution transmission electron microscopy and selected area electron diffraction patterns indicate that aggregates are single crystals with various defects. The photoluminescence excitation spectra of both samples show two bands at 272 and 366 nm. The former may originate from electron transfer from valence band to conduction band in ZnO clusters composed of less than 200 ZnO molecules (2R<2 nm).
Key words:  Solid state reaction, ZnO cluster/nanoparticle, High orientation, Photolumi-nescence spectrum
FundProject:
在有限空间内生成的晶格高度取向的ZnO纳米颗粒
窦树梅,刘巧鸿,王文楼*,刘先明
摘要:
应用固态反应的方法,在260和300 oC空气中分别热分解层状锌油酸固体得到氧化锌纳米颗粒/团簇.高分辨透射电子显微镜和选区电子衍射表明,这种团簇是带有各种缺陷的单晶.光致发光激发光谱表明这两个样品在272和366 nm有两个频段.前者可能是由于不到200个氧化锌分子组成的团簇从价带到导带的电子转移引起的.
关键词:  固态反应,氧化锌团簇/纳米颗粒,高取向,光致发光光谱
DOI:10.1088/1674-0068/23/04/484-490
分类号: