ZnO纳米结构晶体质量对其表面润湿性的影响  

The Effect on the Wettability by the Crystal Quality of ZnO Nanostructure

作　　者：张帆[1] 周明[1] 吴春霞[1] 张伟[1] 陈谦[1] 

机构地区：[1]江苏大学光子制造中心,镇江212013

出　　处：《材料导报》2012年第2期90-93,共4页Materials Reports

基　　金：国家自然科学基金重点项目(50975129);全国百篇优秀博士学位论文专项资金(200739);江苏高校优势学科建设工程资助项目

摘　　要：利用化学气相沉积法(CVD)在镀有Au(10nm)膜的石英衬底上通过控制O2流量制备不同形貌的纳米结构ZnO,通过X射线衍射(XRD)和变温光致发光谱研究晶体缺陷对ZnO表面润湿性能的影响。结果表明,除表面粗糙度之外,高密度的缺陷对样品表面润湿性能也有很重要的影响,尤其是氧空位缺陷对吸收羟基有利,能够降低ZnO表面自由能,提高其疏水性能。ZnO films were synthesized on Au（lOnm-thick） coated quartz substrates via chemical vapor deposi tion（CVD） method. By control the oxygen flow rate, different appearance ZnO nanostructure were got. The effect of crystal defects on the wettability of ZnO were studied by temperature-dependent photoluminescence and Xray diffrac tion. The results showed that besides surface roughness, crystal quality also had a certain impact on hydrophobic nature of ZnO surface. High density of defects, especially oxygen vacancy was benefit to absorb hydroxyl. It could reduce ZnO surface free energy, and then ZnO hydrophobic properties were improved.

关 键 词：氧化锌 氧分压 光致发 光润湿性 

分 类 号：TB34[一般工业技术—材料科学与工程]