稀土掺杂纳米氧化锌的制备及光学性能研究  

Preparation of La-doped Zn O Nano Particles and Investigation on Its Optical Properties

作　　者：张瑞芳[1] 吴晓滨[1] 宋丽萍[1] 李民君[1] 

机构地区：[1]包头轻工职业技术学院,内蒙古包头014035

出　　处：《广州化工》2016年第1期100-102,178,共4页GuangZhou Chemical Industry

摘　　要：低温水热法合成了直径分别为11~48和9~15 nm的棒状氧化锌和稀土La^(3+)掺杂氧化锌微粒。通过X-射线粉末衍射(XRD)、透射电子显微镜(TEM)、紫外-可见漫反射光谱(UV-vis DRS)和荧光光谱(PL)等对氧化锌结构进行了表征以及光学性能测试。结果表明,本研究制备的纳米Zn O是结晶良好的棒状晶体,La^(3+)的掺入使氧化锌晶体发生了晶胞膨胀,紫外吸收增强,带隙向紫外区偏移,随La^(3+)掺杂浓度的增大,荧光强度增加。ZnO particles They showed fine pin-shaped and La doped ZnO particles were growing along the C axial direction synthesized by low temperature hydrothermal method. with the diameter about 11 -48 structures and optical properties were characterized through X- ray powder diffraction （XRD） , microscope （ TEM）, UV - vis diffuse spectrum （ UV - vis DRS ） and photoluminescence （PL） and 9 - 15 nm. The transmission electron spectrum. The results indicated that the doping of La results in the crystal cell of ZnO inflating, the intensity of Uv- vis absorption and photoluminescence luminous increased with the increase of La doping concentration.

关 键 词：氧化锌 纳米微粒 稀土 荧光强度 

分 类 号：TQ11[化学工程—无机化工] TQ17