氨基酸对电沉积CuBr薄膜的取向生长及形貌的影响  

Effects of amino acids on crystal orientations and morphologies of electrodeposited CuBr

作　　者：康红兰[1] 刘润[1] 李赫[1] 徐铸德[1] 

机构地区：[1]浙江大学化学系,浙江杭州310027

出　　处：《浙江大学学报（理学版）》2009年第4期445-449,共5页Journal of Zhejiang University（Science Edition）

摘　　要：以组氨酸、甘氨酸为添加剂,采用电沉积方法制备出具有不同生长取向和形貌的CuBr薄膜.用X-射线衍射仪(XRD)、扫描电镜(SEM)、紫外-可见吸收光谱(UV-vis)和荧光光谱(PL)对样品进行了表征.结果表明:添加组氨酸后,CuBr晶体生长(111)优先取向大大削弱,导致形貌转变为片状结构聚集成平均直径为4μm的均匀微球.而甘氨酸添加剂对CuBr只有微弱的影响.另外对添加不同氨基酸电沉积制备CuBr晶体生长机理进行了初步探讨.CuBr films with different crystal orientations and morphologies were prepared by an electrodeposition method with L-Hisitine and glycine as additives. The samples were characterized by X-ray powder diffraction （XRD）, scanning electron microscopy （SEM）, UV-vis spectra and photoluminescence spectra （PL）. The experimental results showed that when L-Hisitine was added, the prefered crystal orientations of the as-prepared CuBr films were weakened largely. This resulted in the morphologies changed into uniform microspheres aggregated by sheet-like structures with the mean diarneter about 4μm. While glycine had negligible effects on the CuBr films in our experiment. The crystal growth mechanism of the CuBr films prepared by the electrodeposition method with different amino acids as additives was preliminarily studied.

关 键 词：电沉积 CUBR 氨基酸 晶体生长 

分 类 号：O646[理学—物理化学]