氨基酸对电沉积CuBr薄膜的取向生长及形貌的影响

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．

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

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 micro...