混合碱液法生长的氧化锌晶体表面形貌及光致发光性质(英文)  

The Surface Morphology and Photoluminescence Properties of ZnO Crystals Synthesized by Flux Method

作　　者：赵兰玲[1] 王继扬[1] Robert I BOUGHTON 李静[1] 张素芳[3] 韩树娟[1] 

机构地区：[1]山东大学晶体材料国家重点实验室,山东济南250100 [2]Center for Material Science Bowling Green State University,Bowling Green OH 43403 USA [3]衡水学院化学院,河北衡水053000

出　　处：《发光学报》2012年第9期917-922,共6页Chinese Journal of Luminescence

基　　金：国家重点基础研究计划(11250005271008);国家自然科学基金(50872066);国家基础研究(2010CB833103)资助项目

摘　　要：从NaOH和LiOH的混合碱液中生长了具有不同六方形貌的淡黄色ZnO晶体。采用X射线粉末衍射的方法对晶体的物相进行了分析,利用光学显微镜和扫描电镜对晶体的形貌进行了表征,同时利用电子探针能谱仪对晶体的组分进行了分析。从晶体的室温光致发光谱图中可以观测到380,445,512,652 nm处存在与晶体结构和缺陷相关的发射峰。Transparent pale yellow ZnO crystals with different hexagonal morphology,such as hexagonal caps and hexagonal lamellae,have been successfully synthesized in molten hydrous NaOH-LiOH.The phase structure of the as-grown crystals was investigated by means of X-ray powder diffraction.Detailed surface morphology of the crystals was studied using optical microscopy and scanning electron microscopy.Elemental analysis of the synthesized crystals was performed using energy dispersive X-ray spectrum.The photoluminescence spectrum was employed to characterize the obtained crystals.Some ultraviolet,blue,green and red emission peaks were observed in the photoluminescence spectrum.

关 键 词：ZNO NaOH-LiOH 表面形貌 晶体 光致发光 

分 类 号：O731[理学—晶体学]