有序Ag_(NW)@Au_(NP)复合纳米线的制备及其对聚(3-己基噻吩)荧光效应的影响  

Preparation of ordered Ag_(NW)@Au_(NP) hybrid nanowires and their influences on fluorescence properties of poly(3-hexylthiophene)

作　　者：张铭海 易国斌[1] 俎喜红[1] 黄海亮[1] 王运佳[1] 王建超[1] 钟本斌 罗洪盛[1] ZHANG Minghai;YI Guobin;ZU Xihong;HUANG WANG Jianchao;ZHONG Benbin;LUO Hailiang;Hongshe WANG Yunjia;ng(School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China)

机构地区：[1]广东工业大学轻工化工学院,广州510006

出　　处：《复合材料学报》2017年第12期2770-2777,共8页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(51273048)

摘　　要：采用三相界面法及置换反应法,以氯金酸-乙醇溶液和无序Ag纳米线为原材料,在空白Si基底上成功制备出有序Ag纳米线(Ag_(NW))@Au纳米颗粒(Au_(NP))复合纳米线。采用场发射扫描电子显微镜(FESEM)和高分辨透射电子显微镜(HRTEM)对有序Ag_(NW)@Au_(NP)复合纳米线形貌进行了表征与分析,研究了氯金酸-乙醇溶液浓度和置换反应的反应时间对制备Ag_(NW)@Au_(NP)复合纳米线的影响,并且结合荧光光谱及激光拉曼光谱进一步研究了一系列有序Ag_(NW)@Au_(NP)复合纳米线对共轭聚合物聚(3-己基噻吩)(P3HT)荧光效应的影响。实验结果表明,有序Ag_(NW)@Au_(NP)复合纳米线上Au_(NP)的粒径随着置换反应时间的延长或氯金酸-乙醇溶液浓度的增加而增大,该复合纳米线对P3HT的荧光效应有增强作用,但其增强效应会随置换反应进行而减弱。Ordered Ag nanowires（Ag（NW））@Au nanoparticles（AuNP）hybrid nanowires were synthesized on bare Si substrate using Ag（NW）-water solution and HAuCl4-ethanol solution by three-phase-interface method and galvanic displacement reaction.Field emission SEM（FESEM）and high resolution TEM（HRTEM）were employed to analyze the influence of HAuCl4-ethanol concentration and reaction time of galvanic displacement reaction on the morphology of the hybrid nanowires.Fluorescence spectra and laser-Raman spectra were carried out to analyze the influence of various ordered AgNW@AuNP hybrid nanowires on the fluorescence properties of conjugated polymer poly（3-hexylthiophene）（P3HT）.The results show that the AuNP particle sizes of ordered AgNW@AuNP hybrid nanowires increase when the reaction time or the concentration of HAuCl4-ethanol solution increases.The fluorescence properties of P3HT films are improved on various ordered AgNW@AuNPhybrid nanowires compared with those on bare silicon substrate,but the fluorescence intensity of P3HT films on the ordered hybrid nanowires decreases as the galvanic displacement process.

关 键 词：置换反应 Ag纳米线(AgNW) Au纳米颗粒(AuNP) 复合纳米线 聚(3-己基噻吩) 荧光效应 

分 类 号：TG146[一般工业技术—材料科学与工程] O657[金属学及工艺—金属材料]