固相反应法合成纳米氧化锌及其光学性能研究  

Preparation of ZnO Nanoparticles for Study of Their Optical Properties

作　　者：吴尝[1] 

机构地区：[1]安徽大学物理与材料科学学院

出　　处：《阜阳师范学院学报（自然科学版）》2007年第2期16-18,共3页Journal of Fuyang Normal University(Natural Science)

摘　　要：采用ZnSO4.7H2O和N a2CO3为原料,通过固相反应简便合成了氧化锌纳米晶,X-射线衍射（XRD）图谱证明产物为纤锌矿型晶体结构,粒度在16~25 nm范围之间.紫外吸收光谱（UV）表明产物在波长360 nm处显示很好的激子吸收,与体材料的激子吸收峰（373 nm）相比产生了蓝移,具有明显的量子尺寸效应.光致发光光谱（PL）检测结果发现,产物的紫外发光峰位随着粒径的减小向短波方向移动（蓝移）,也表现出强烈的尺寸效应.ZnO nanoparticles, which are synthesized by the technique of solid-phase reaction, were characterized by X-ray diffraction （XRD）. Their optical properties were registered via UV-visible absorption spectra and photoluminescence spectra. UV-visible absorption spectrum show that the band of violet emmission at 360 nm has some degree of blue-shift. The blue shifts of photoluminescence occur with increasing of diameter, We think the results are attributed to size effect of ZnO nanoparticles.

关 键 词：氧化锌纳米晶 固相反应 光学性能 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]