中文摘要：

采用室温原电池电化学技术在钨衬底上制备出了具有发光性能的BaWO4、SrWO4、CaWO4薄膜，利用X射线衍射仪、扫描电镜、荧光光谱仪对样品进行了分析，对薄膜的发光性能进行了研究。XRD分析表明，所制备的钨酸盐薄膜是高度结晶的，呈四方结构SEM观察表明，在原电池条件下，这些晶体以四方锥形的习性生长。室温下的荧光性能测试表明，所制备的BaWO4、SrWO4、CaWO4薄膜在220nm至240nm的光激发下，均在450nm附近出现一个蓝光发射带，而BaWO4薄膜还在310nm的光激发下，在400nm及590nm附近出现额外的发射带，形成从400-590nm的准连续发射光谱。研究表明，原电池电化学技术为某些功能陶瓷薄膜的制备提供了一条环境协调的、廉价便利的工艺新路线。

英文摘要：

Highly crystalline luminescent BaWO4, SrWO4 and CaWO4 thin films have been prepared by cell electrochemical technique at room-temperature. The films were characterized by using X-ray Diffraction （XRD）, Scanning Electron Microscopy （SEM） and Fluorometry respectively. XRD analysis reveal that these tungstate films are well crystallized with tetragonal structure ;SEM examinations show that these crystals grow with pyramidal habits under cell electrochemical conditions. When excited by the light from 220nm to 240nm, these thin films show single blue emission at about 450nm, whereas BaWO4 thin film shows extra emission bands at 400nm and 590nm when excited by 310nm. The results indicate that cell electrochemical technique provides an environmental, cheaper and convenient new routine to prepare some functional ceramic thin films.