Er掺杂的ZnS纳米带的合成和光致发光性质  

Synthesis and photoluminescence property of Er-doped ZnS nanobelts

作　　者：董兴成[1] 徐超[1] 胡丽芬[1] 刘应开[1] 

机构地区：[1]云南师范大学物理与电子信息学院,云南昆明650092

出　　处：《云南师范大学学报（自然科学版）》2010年第5期36-39,共4页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金(10764005);教育部新世纪优秀人才支持计划项目支持(NCET-08-0926);云南省自然科学基金(06A0025Q;2007PY01-41);云南省教育厅基金(06Y091)

摘　　要：以金为催化剂,利用热蒸发方法合成掺杂铒(Er)的ZnS纳米带。X射线衍射(XRD)结果表明Er掺杂的ZnS纳米带仍具有六方纤锌矿结构。采用激发波长为244nm激发样品,发现Er掺杂的ZnS纳米带的光致发光(PL)谱中共有5个发光峰,它们的位置为437,520,549,673和805nm,分别对应ZnS纳米带本身缺陷,Au离子掺杂,以及Er^(3+)离子~4S_(3/2)-~4I_(15/2),~4F_(9/2)-~4I_(15/2)和~4I_(9/2)-~4I_(15/2)跃迁引起的发光。Er- doped ZnS nanobehs were successfully synthesized by a simple thermal evaporation method under controlled conditions with the presence of Au as catalyst. XRD results confirm that Er - doped ZnS nanobelts are still the hexagonal wurtzite structure. Photoluminescence spectrum exited at 244nm shows 5 e- mission bands centered at 437,520,549,673 and 805nm, which should arise from the native defects ,the dop- ant of Au ions and the ^4S3/2-^4I15/2, ^4F9/2-^4I15/2 and ^4I9/2-^4I15/2, transition of the Er^3＋ ions.

关 键 词：Er掺杂的ZnS纳米带 光致发光 热蒸发方法 

分 类 号：P12[天文地球—天体测量]