片状ZnO单晶的光电性能研究  

Study on Photoelectric Performance of Sheet ZnO Single Crystal

作　　者：刘长珍[1] 安黛宗[1] 萧劲东[1] 杨黎[1] 

机构地区：[1]中国地质大学(武汉)材料科学与化学工程学院,武汉430074

出　　处：《人工晶体学报》2009年第4期821-825,830,共6页Journal of Synthetic Crystals

摘　　要：通过SEM、TG、XRD、IR、UV-Vis研究了用均匀沉淀法制备的片状ZnO单晶的结晶学和光电性能。结果显示:片状ZnO是结晶良好的晶体,属纤锌矿结构,对中红外和可见光透射率很高,达80%以上,而对近紫外光的透射率仅为6%。片状ZnO单晶的晶格常数为a=0.3246 nm,c=0.5207 nm,禁带宽度为3.25 eV。The crystallography and photoelectric properties of sheet ZnO single crystal （SZOSC） were studied by SEM, TG, XRD, IR, UV-Vis. The result showed that the sheet ZnO was well crystalline, SZOSC has a strong absorbency to near ultraviolet, the trassmittance could exceed 80%; but the absorbency to mid-IR and visible light was only 6%. Lattice constant can be calculated on the basis on XRD data, a = 0. 3246 nm, c = 0. 5207 nm. The energy gap of sheet ZnO single crystal is 3.25 eV according to UV-Vis spectrum mapping.

关 键 词：片状ZnO单晶 光电性能 禁带宽度 晶格常数 

分 类 号：O64[理学—物理化学]