摘要
在十六烷基三甲基溴化铵表面活性剂辅助下,通过水热合成法制备了Co2+掺杂ZnO纳米线。纳米线的直径为100~160nm,长度约为10μm。纳米线沿(001)方向生长。Co2+掺杂ZnO纳米线紫外-可见(UV-vis)吸收光谱曲线,显示掺杂的ZnO纳米线在200~300nm波段之间都有很强的紫外吸收,在波长360~370nm处显示很好的激子吸收,与体相的激子吸收峰(373nm)相比产生了蓝移。纳米线分别在385、409、433、462和495nm波段表现出发光特性,简略的讨论了其发光机制。
Co^2+ doped ZnO nanowires were synthesized by a hydrothermal method in the presence of cetyltrimethylammonium bromide(CATB).The obtained Co^2+ doped ZnO nanowires were in diameters of 100-160nm and in lengths of about 10μm.The nanowires grow along the(001) direction.Using the UV-vis spectrophotometer to investigate the absorbency of the samples,the results indicated the blue-shift at the 360-370nm compared with the mass ZnO.The Co^2+ doped ZnO nanowires show emission bands centered at 385,409,433,462 and 495nm,respectively.The possible emission mechanism of Co^2+ doped ZnO nanowires was also discussed.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2008年第2期305-306,310,共3页
Journal of Functional Materials
基金
国家自然科学基金资助项目(60277023)
山东省自然科学基金资助项目(Y2004A11)
烟台大学博士后基金资助项目(WL03B15)
作者简介
曹志峰(1981-).男.山东烟台人,在读硕士.师承徐宝龙教授,从事纳米功能材料的研究。
通讯作者:徐宝龙