有机溶剂热生长技术制备Zn(en)_2S、ZnS纳米棒及其光学性能的研究  

Preparation of Nanorods Zn(en)_2S and ZnS by Organic Solvothermal Technique and Study on their Optical Properties

作　　者：李国强[1] 何晓云[1] 钟惠妹[1] 张燕琼[1] 陈日耀[1] 郑曦[1] 陈震[1] 

机构地区：[1]福建师范大学化学与材料学院,福州350007

出　　处：《人工晶体学报》2005年第4期748-752,733,共6页Journal of Synthetic Crystals

基　　金：福建省科技厅重点项目(No.02H034);福建省教育厅(JA02192;JA02189;JB021777)资助项目

摘　　要：以有机溶剂热生长技术(organic solvothermal technique)制备Zn(en)2S(en为乙二胺)纳米棒,以IR、XRD、TG等测试表明该化合物中乙二胺与中心离子Zn2+通过配位键结合。以TEM、ED初步研究了该纳米材料的形貌、结构;以制得的纳米Zn(en)2S为母体,在氮气氛中,煅烧至900℃,制得棒状纳米ZnS;溶胶提拉法,在导电玻璃(ITO)基体上制备出ZnS、Zn(en)2S纳米微粒/ITO复合膜,并研究其光学特性。结果表明,二者均为纳米棒构型,Zn(en)2S属立方晶系,棒直径约为30nm;ZnS属六方纤锌矿型,棒直径较大,在60nm左右。PL分析表明Zn(en)2S的荧光红移至452nm处。The precursor Zn （en）2S nanorods （ en = ethylenediamine） were prepared via a solvothermal process from elemental sulfur and zinc using ethylenediamine as a solvent. Detailed characterizations of the infrared absorbance spectroscopy （IR）, powder X-ray diffraction （XRD） and thermogravimetric analysis （TG） confirmed two en coordinated with Zn^2＋ to form a complex cation. The morphological property was also characterized by transmission electron microscopy （TEM） and electron diffraction analysis （ED）. Phase-pure hexagonal wurtzite ZnS products were obtained by annealing the precursor in nitrogen atmosphere at about 900℃. Zn （en）2S and ZnS nano-particles were doped into the indium-tin oxide glass （ITO） by dipping progress, and the nano-particles/ITO composite films were acquired. Zn（en）2S showed a diameter about 30nm, and ZnS about 60nm. The fluorescence spectra were also studied. PL results show that Zn （en）2S excites a fluorescence at 452nm.

关 键 词：一维纳米材料 有机溶剂热生长技术 纳米棒 光致发光 

分 类 号：O78[理学—晶体学]