ZnWO_4单晶衬底制备ZnO薄膜的发光性能  

Research on Fluorescence of ZnO Film on ZnWO_4 Crystal Substrates

作　　者：臧竞存[1] 田战魁[1] 邹玉林[1] 刘燕行[2] 迟静[1] 翟琳[1] 叶建萍[3] 

机构地区：[1]北京工业大学材料科学与工程学院,北京100022 [2]北京工业大学环境与能源工程学院,北京100022 [3]中国科学院化学所光化学重点实验室,北京100080

出　　处：《北京工业大学学报》2006年第10期948-952,共5页Journal of Beijing University of Technology

摘　　要：以Zn(CH_3COO)_2·2H_2O为反应的前驱体,采用溶胶一凝胶法在ZnWO_4单晶衬底上制备出了具有良好光学特性的ZnO薄膜．通过理论计算和实验论证分析了ZnWO_4单晶作为制备ZnO薄膜的衬底材料的可行性．结果表明,ZnWO_4晶体的a晶面与ZnO晶体的c晶面晶格匹配很好,最佳方位晶格失配率只有0．83％,是制备ZnO薄膜的优良衬底．用波长325 nm光激发,薄膜在396 nm有较强的荧光发射．ZnO thin films of high optical quality are prepared on single crystal substrates by sol-gel technique, and zinc acetate is used as precursor in this process. The feasibility of ZnWO4 crystal used as a substrate material was analyzed and proved by theory and experiment. The results of experiment show that lattice between ZnWO4 a-plane and ZnO c-plane closely matches, while the mismatch of the optimum orientation lattice is only 0.83%, and the ZnWO4 crystal wafers can be used as a fine substrate material for forming ZnO film. The strong fluorescence of the thin film is observed at 396 nm when it is excited by 325 nm wavelength light.

关 键 词：ZNO 薄膜 衬底 发光 ZnWO4 溶胶凝胶法 

分 类 号：O482.31[理学—固体物理]