电子束辐照对二氧化锡微结构和光致发光性能的影响  

Influence of electron-beam irradiation on the microstructural and photoluminescence properties of tin dioxide

作　　者：侯凌癸[1] 汪文峰[1] 黄茹婷 张乾[1] 陈志文[1] 

机构地区：[1]上海大学环境与化学工程学院,上海200444

出　　处：《中国科技论文》2015年第6期669-672,699,共5页China Sciencepaper

基　　金：高等学校博士学科点专项科研基金资助项目(20133108110021);国家自然科学基金资助项目(11375111)

摘　　要：通过溶胶-凝胶法制备二氧化锡纳米晶,再进行电子束辐照。研究发现辐照剂量为1 400kGy的二氧化锡纳米粒子比未辐照的结晶性更好,辐照后二氧化锡纳米晶具有四方金红相结构,粒子平均大小为4nm。辐照后二氧化锡在535cm-1和691cm-1处出现新的拉曼峰,带隙能为3.29eV。结果表明电子束辐照对二氧化锡微结构和光性能具有重要影响。Tin dioxide nanocrystals were prepared by sol-gel method,and then were radiated by an electron accelerator.It is found that the irradiated SnO2 nanoparticles under a 1 400 kGy dose have better crystallinity than those of unirradiated SnO2 nanoparticles.The irradiated SnO2 nanocrystals have a tetragonal rutile crystalline structure,the average grain size is about 4nm.The Raman spectrum shows two new peaks at 535cm-1 and 691cm-1,the band gap energy of the irradiated SnO2 is 3.29 eV.The results indicate that electron-beam irradiation have important influence on the microstructural and optical properties of tin dioxide.

关 键 词：二氧化锡纳米晶 电子束辐照 微结构 光致发光 

分 类 号：TB383.1[一般工业技术—材料科学与工程] O614.432[理学—无机化学]