球状PbS纳米颗粒的室温合成与性能表征  

Synthesis and Characterization of Spherical PbS Nanoparticles at Room Temperature

作　　者：王天兴[1,2] 陈四香 刘海瑞[1,2] 

机构地区：[1]河南师范大学物理与电子工程学院,新乡453003 [2]河南省光伏材料重点实验室,新乡453003

出　　处：《人工晶体学报》2016年第5期1348-1352,共5页Journal of Synthetic Crystals

基　　金：国家自然科学基金(51502081);河南省基础与前沿技术研究计划项目(122300413208)

摘　　要：以醋酸铅为铅源,硫代乙酰胺为硫源,在表面活性剂十二烷基硫酸钠(SDS)和十六烷基三甲基溴化铵(CTAB)共同作用下,在常温下合成了Pb S纳米晶,利用XRD、紫外分光度计、SEM、TEM对合成产物的结构和形貌以及光学特性进行了表征分析,结果表明,合成的Pb S为尺寸均匀的球形纳米晶,对合成的Pb S纳米晶的形成机理进行了初探。当反应温度较低时,形成的Pb S小颗粒在表面活性剂SDS的烷基链模板和CTAB微胶束软模板共同作用下生成球状Pb S纳米晶。Spherical Pb S nanoparticles were synthesized using lead acetate and thioacetamide as precursor at room temperature,in which sodium dodecyl sulfate（SDS） and cetyl trimethyl ammonium bromide（CTAB） as surfactan.The morphology,structure and optical properties of synthesized products were characterized by XRD,ultraviolet-visible spectrophotometer,SEM and TEM.The results show the asobtained Pb S are spherical structure with a size of 50-70 nm.The formation mechanism of spherical Pb S nanocrystals were discussed that the spherical Pb S nanoparticles were affected by alkyl chain template and micro soft template micelles from surfactant.

关 键 词：硫化铅 球状纳米晶 CTAB 

分 类 号：TN304[电子电信—物理电子学] O614.4[理学—无机化学]