Highly Ordered Lattice Orientation of ZnO Nanoparticles Formed in Confined Space  

在有限空间内生成的品格高度取向的ZnO纳米颗粒

作　　者：窦树梅[1] 刘巧鸿[1] 王文楼[1] 刘先明[2] 

机构地区：[1]中国科学技术大学化学物理系,合肥230026 [2]中国科学技术大学理化科学实验中心,合肥230026

出　　处：《Chinese Journal of Chemical Physics》2010年第4期484-490,I0002,共8页化学物理学报（英文）

摘　　要：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 ℃ 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）.

关 键 词：Solid state reaction ZnO cluster/nanoparticle High orientation Photoluminescence spectrum 

分 类 号：O[理学]