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Microstructure and electrical properties of La2O3-doped ZnO-based varistor thin films by sol-gel processXU Dong(徐东)1, 2, JIANG Bin(姜斌)1, CUI Feng-dan(崔凤单)1, YANG Yong-tao(杨永涛)1, XU Hong-xing(徐红星)1... of La2O3-doped ZnO-Bi2O3 thin films prepared by sol–gel process have been investigated. X-ray diffraction shows that most diffraction peaks of ZnO are equal, and the crystals of ZnO grow well. Scanning......
J. Cent. South Univ. Technol. (2011) 18: 42-47 DOI: 10.1007/s11771-011-0656-z Influence of dopant content on morphology and optical constants of ZnO:Na films by sol-gel method L? Jian-guo(吕建国)1... 2011 Abstract: Undoped and Na-doped ZnO films were deposited by sol-gel method. The effects of sodium incorporation on structure, surface morphology and optical constants of the films were investigated......
Sol-gel独立前驱单体制备PZT铁电薄膜技术 张树人1,陈祝1,杨成韬1,杨邦朝1 (1.电子科技大学,微固学院,四川,成都,610054) 摘要:采用醋酸铅,硝酸氧锆(硝酸锆),钛酸丁酯独立稳定的前驱单体,sol-gel法旋转涂膜技术制备了PZT铁电薄膜.研究了水的添加量对溶胶形成的影响,比较了不同的溶胶浓度,膜层结构(PT/PZT/PT Sandwich)及热处理工艺条件对薄膜结构,铁电性能的影响. 关键词:PZT; sol-gel法; 前驱单体; 铁电薄膜; [全文内容正在添加中] ......
Structure and Luminescence Properties of Eu3+ Doped SiO2 Glass Synthesized by Sol-Gel Process 吴红英1,翁诗甫2,王喜贵1,谢大弢2,吴瑾光2 (1.Department of Chemistry, Inner Mongolia Normal University, Huhhot 010022... annealing temperatures, Eu3+-doped SiO2 gel and glass were prepared by sol-gel method, and the structure and luminescent properties were studied with excitation spectra, emission spectra, IR and DTA-TG......
Sol-Gel法制备SrHfO3:Ce闪烁材料及发光特性 王华栋1,张佳珞2,马伟民2,闻雷4,尹凯1,安玉良3 (1.沈阳大学,辽宁,沈阳,110044;2.沈阳化工学院,辽宁,沈阳,110142;3.沈阳理工大学,辽宁,沈阳,110168;4.中国科学院金属研究所,辽宁,沈阳,110016) 摘要:用溶胶-凝胶法(Sol-Gel)合成SrHfO3:Ce纳米粉体,研究煅烧温度及pH值对前... nm激发的发射光谱在380,487和526 nm处分别有3个峰值谱带;242 nm激发处有一个谱带峰值在393 nm波长处;308 nm激发的发射光谱有一谱带,峰值在403 nm处,后两者发射光谱的相对强度比前者弱,原因是由于稀土Ce3+离子能级之间的跃迁几率存在差异造成. 关键词:闪烁体; Sol-Gel法; SrHfO3; Ce纳米粉体; 发光特性; [全文内容正在添加中] ......
Sol-gel制备二氧化钛复合抗菌材料的研究 王俊1,江伟1 (1.华东理工大学材料科学与工程学院,上海,200237) 摘要:以钛酸正丁酯为前驱物,用溶胶-凝胶法制备了纳米级二氧化钛粉体和掺杂了二氧化硅以及银,铜,锌等金属的复合抗菌粉体.用EDS,TEM以及UV等技术对产物进行了表征,并对结果进行了比较分析.研究发现二氧化硅的包覆可有效减小产物粒径,改善其表面性质.而在纳米TiO2粉体中掺杂银和其它金属后,大大提高了粉体的抗菌性能,有效拓宽了纳米TiO2在紫外区对光的响应范围,还使其在可见光区也有了一定的吸收. 关键词:纳米TiO2; Sol-gel法; 抗菌; 银; [全文内容正在添加中] ......
Sol-Gel Synthesis and Luminescent Characteristic of Doped Eu3+ Silicate-Silica Phosphor Peng Xiudong1,Tang Jinfeng1,Zhou Pingle1,Yang Liangzhun1,Yang Shiping1,Yu Xibin1 (1.Chemistry Department, Shanghai Normal University, Shanghai 200234, China) Abstract:Eu-doped silicate complex gel nano-particles was obtained by sol-gel process and characterized with TEM, XRD, PL, etc. The well dispersed......
新型的Sol-gel法制备Ba0.6Sr0.4TiO3铁电陶瓷 张红芳1,张良莹1,姚熹1 (1.上海同济大学功能材料研究所,上海,200092) 摘要:采用新型的Sol-gel工艺制备了Ba0.6Sr0.4TiO3(BST)超细粉体,将BST粉体进行压制和烧结,获得了晶粒尺寸在1μm以内的BST陶瓷块体.观察了BST陶瓷块体的结晶情况并测定了其电学性能.在Sol-gel工艺中,加入了有机大分子量聚乙烯吡咯烷酮(polyvinyl pyrrolidone,PVP)制备BST前驱体.实验结果表明:PVP的加入可有效增加前驱体的稳定性和分散性,降低BST陶瓷的预烧温度约250℃,并在1200℃获得晶粒细小,致密的BST陶瓷.BST陶瓷,显示弥散相变特征. 关键词:Sol-gel法; BST; 介电特性; 弥散相变; [全文内容正在添加中] ......
Microwave permittivity of SiC-Al2O3 composite powder prepared by sol-gel and carbothermal reduction LIU Xiao-kui(刘晓魁), LUO Fa(罗 发), ZHU Dong-mei(朱冬梅), ZHOU Wan-cheng(周万城) State Key... by sol-gel and carbothermal reduction method. The powder synthesized was characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM) to confirm the phase formation......
Effects of heat treatment on morphological, optical and electrical properties of ITO films by sol-gel technique LI Zhi-hua(李芝华), KE Yu-peng(柯于鹏), REN Dong-yan(任冬燕) School of Materials Science...; Abstract: Indium-tin-oxide(ITO) films were prepared on the quarts glass by sol-gel technique. Effects......
