CuInS_2纳米晶的制备及三阶非线性光学性质的研究  

Preparation and Third-order Nonlinear Optical Properties of Cuins_2 Nanocrystals

作　　者：杨帆[1] 向卫东[1] 张希艳[2] 杨昕宇[1,2] 冯丽[1] 王芸[1] 梁晓娟[1] 金怀东[1] 

机构地区：[1]温州大学化学与材料工程学院,温州325035 [2]长春理工大学材料科学与工程学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2011年第3期96-100,共5页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50972107);浙江省重点科技创新团队基金项目(2009R50010)

摘　　要：以无水醋酸铜(Cu(AC)2)为铜源,氯化铟(InCl3)为铟源,正十二硫醇(DDT)为硫源,1-十八稀(ODE)为溶剂在240℃条件下反应3h,合成了金字塔形的CuInS2纳米晶。用X射线粉末衍射(XRD),X射线光电子能谱(XPS),透射电子显微镜(TEM),能量分散光谱(EDS),Z-Scan技术对粉体的结构、形貌、相组成、三阶非线性光学特性进行表征。结果表明:通过一锅法可以合成单分散颗粒尺寸为5-7nm的金字塔形CuInS2纳米晶;分散在正己烷中的CuInS2纳米晶的三阶光学非线性折射率γ,三阶光学非线性吸收系数β以及三阶光学非线性极化率χ(3)分别为3.444×10-17m2/W,4.526×10-7m/W和1.390×10-8esu。Copper indium sulphide products were synthesized via a pot method（at 240 ℃ for 3h） involving Cu（AC）2 as Copper source,InCl3 as the indium source,1-dodecanethiol as the sulfur source,ODE as the reaction medium.Struc-ture,morphology,and phase constituents of as-prepared CuInS2 products were characterized by X-ray diffraction（XRD）,X-ray photo-electron spectroscopy（XPS）,transmission electron microscopy（TEM）,energy dispersion spectros-copy（EDS）.The results showed that as-prepared CuInS2 had pyramids-like morphology and the size of CuInS2 was rang from 5nm to 7nm.As-prepared CuInS2 in n-Hexane showed that the third-order optical nonlinear refractive index γ,absorption coefficient β,and susceptibility χ（3） were determined to be 3.44×10-17m2/W,4.53×10-7m/W,and 1.39× 10-8 esu respectively.

关 键 词：一锅法 CuInS2纳米晶 太阳电池材料 三阶光学非线性 

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