中文摘要：

本文采用水热法,通过改变溶剂制备了不同形貌的氧化锌微米棱棒,并尝试对其进行稀土Er3＋的掺杂。通过X射线衍射（XRD）、扫描电镜（SEM）、荧光光谱（PL）及分光光度计对所得产物的组成、形貌、发光性能和光学特性进行了研究。实验表明：醇-水的环境有利于得到形态均匀的微米棱棒,醇水比例为1∶2.5,激子辐射复合发光与缺陷发光的比例最高,缺陷浓度最低,晶体质量最高。随着Er3＋掺杂浓度的增加吸收强度增强,Er3＋掺杂浓度达4mol%时吸收度不再变化。

英文摘要：

The ZnO micro-prisms with different morphology and Er3＋ doped ZnO samples have been synthesized via a hydrothermal method by tuning the solvent.The prepared ZnO samples were characterized by powder X-ray diffraction（XRD）,scanning electron microscopy（SEM）,photoluminescence（PL） spectrometer and spectrophotometry.The results indicated that uniform micro-prisms can be easily obtained by tuning the volume ratio of alcohol to water.When the volume ratio of alcohol to water is 1：2.5,the ZnO samples have the weakest defects emission,the lowest defects concentration and the best crystalline quality.The absorptivity increases with the increase of Er3＋ concentration until the concentration of Er3＋ reaches to 4mol%.