Au表面等离激元增强ZnO微米碟紫外发光研究  

Study on Ultraviolet Photoluminescence of ZnO Microdisks Enhanced by Au Surface Plasmon

作　　者：祝秋香 简正波 谭伟石 肖卫初 邓亚琦[1] 崔治 张林成 林琳[1] ZHU Qiuxiang;JIAN Zhengbo;TAN Weishi;XIAO Weichu;DENG Yaqi;CUI Zhi;ZHANG Lincheng;LIN Lin(College of Information and Electronic Engineering,Hunan City University,Yiyang,Hunan 413000,China;Hunan Key Laboratory of All-solid-state Energy Storage Materials and Devices,Hunan City University,Yiyang,Hunan 413000,China;College of Mechanical and Electrical Engineering,Hunan City University,Yiyang,Hunan 413000,China)

机构地区：[1]湖南城市学院信息与电子工程学院,湖南益阳413000 [2]湖南城市学院全固态储能材料与器件湖南省重点实验室,湖南益阳413000 [3]湖南城市学院机械与电气工程学院,湖南益阳413000

出　　处：《湖南城市学院学报（自然科学版）》2020年第4期56-61,共6页Journal of Hunan City University:Natural Science

基　　金：国家自然科学基金资助项目(11904092,11947088,U1832143);湖南省自然科学基金资助项目(2019JJ50028);全固态储能材料与器件湖南省重点实验室项目(2017TP1024)。

摘　　要：利用简单气相传输法制备ZnO微米碟,通过在其表面溅射一层Au纳米粒子,构建Au与ZnO的复合结构,详细探讨ZnO微米碟的紫外发光增强性能及Au表面等离激元与ZnO激子的耦合过程和耦合机制.研究结果表明,溅射Au纳米颗粒使室温下生长的ZnO微米碟的紫外发光增强了近10倍;Au与ZnO的复合结构中存在ZnO近带边发光增强和缺陷发光被抑制的2个物理过程;在Au与ZnO的耦合过程中,能量耦合与电子转移共同存在.ZnO microdisks are fabricated by a vapor phase transport method and a composite structure of Au and ZnO are constructed by sputtering a layer of Au nanoparticles(NPs) on its surface. The ultraviolet photoluminescence enhancement performance of ZnO microdisks and the plasmons and ZnO excitation of Au surface are discussed in detail coupling process and coupling mechanism The results show that sputtering Au nanoparticles enhances the ultraviolet luminescence of ZnO microdisks grown at room temperature by nearly 10 times. There are two physical processes in the composite structure of Au and ZnO that ZnO near-band edge luminescence is enhanced and defect luminescence is suppressed. In the coupling process of Au and ZnO, energy coupling and electron transfer coexist.

关 键 词：ZnO微米碟 表面等离激元 紫外发光 

分 类 号：TB33[一般工业技术—材料科学与工程] TN304[电子电信—物理电子学]