PEG辅助的溶胶凝胶法制备多孔ZnO薄膜  

Preparation of the porous ZnO films by PEG-assisted sol-gel method

作　　者：杨立荣[1] 刘淑贤[1] 靳正国[2] 

机构地区：[1]河北理工大学,唐山063009 [2]天津大学先进陶瓷与加工技术教育部重点实验室,天津300072

出　　处：《功能材料与器件学报》2006年第4期338-342,共5页Journal of Functional Materials and Devices

基　　金：国家重点基础研究专项经费(No.G20000365);国家自然科学基金(No.6997603490101012)资助

摘　　要：以醋酸锌为前驱体,乙醇为溶剂,二乙醇胺为络合剂,通过聚乙二醇(PEG)辅助的溶胶———凝胶法在玻璃基片上制备了ZnO多孔薄膜。利用IR、TG-DTA、XRD及SEM等测试方法对薄膜的结构和特性进行了分析。探讨了样品在溶胶-凝胶及煅烧过程中的物理化学变化。研究了前驱体浓度、PEG2000加入量对薄膜结构和性能的影响。结果表明,当Zn2+的浓度为0.6mol/L的溶胶在70℃水浴时,加入PEG2000后,有利于ZnO多孔结构的形成,而且孔尺寸及密度也随PEG加入量的增大而增大。ZnO porous films were prepared on glass substrates by PEG - assisted sol - gel method using Zn （CH3COO）2 · 2H2O as precursor, ethanol as solvent and NH（ C2H2OH）2 as chelating agent. The characteristics and microstructure of films as well as the chemical and physical changes taken place during sol - gel and heat treatments were analyzed by IR, TG - DTA, XRD and SEM. The effects of precursor concentration and PEG content on the characteristic of films were discussed. The results show that ZnO porous thin films can be prepared based on the admixture of PEG and in water bath at 70℃, pore size and density are increased with the addition of PEG, when Zn^2＋ concentration is 0.6mol/L.

关 键 词：氧化锌 多孔薄膜 溶胶-凝胶 聚乙二醇 

分 类 号：O484[理学—固体物理]