Morphology Control and Optical Absorption Properties of Ag Nanoparticles by Ion Implantation  

作　　者：G.X. Cai F. Ren X.H. Xiao L.X. Fan X.D. Zhou C.Z. Jiang 

机构地区：[1]Key Laboratory of Acoustic and Photonie Materials and Devices of Ministry of Education, Wuhan University, Wuhan 430072, China

出　　处：《Journal of Materials Science & Technology》2009年第5期669-672,共4页材料科学技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.10435060 and 10775109);the Specialized Research Fund for the Doctoral Program of Higher Education(No.20050486054 and 20070486069);the Young Chenguang Project of Wuhan City(No.200850731371)

摘　　要：Ion implantation is a powerful method for fabricating nanoparticles in dielectric. For the actual application of nanoparticle composites, a careful control of nanoparticles has to be achieved. In this letter, the size, distribution and morphology of Ag nanoparticles are controlled by controlling the ion current density, ion implantation sequence and ion irradiation dose. Single layer Ag nanoparticles are formed by Ag^＋ ion implantation at current density of 2.5 μ^A/cm2. By Ag and Cu ions sequential implantation, the size of single layer Ag nanoparticles increases. While, by Cu and Ag ions sequential implantation, uniform Ag nanoparticles with wide distribution are formed. The morphology of Ag nanoparticles changes to hollow and sandwiched nanoparticles by Cu^＋ ion irradiation to doses of 3×10^16 and 5×10^16 ions/cm^2. The optical absorption properties of Ag nanoparticles are also tailored by these ways.Ion implantation is a powerful method for fabricating nanoparticles in dielectric. For the actual application of nanoparticle composites, a careful control of nanoparticles has to be achieved. In this letter, the size, distribution and morphology of Ag nanoparticles are controlled by controlling the ion current density, ion implantation sequence and ion irradiation dose. Single layer Ag nanoparticles are formed by Ag^＋ ion implantation at current density of 2.5 μ^A/cm2. By Ag and Cu ions sequential implantation, the size of single layer Ag nanoparticles increases. While, by Cu and Ag ions sequential implantation, uniform Ag nanoparticles with wide distribution are formed. The morphology of Ag nanoparticles changes to hollow and sandwiched nanoparticles by Cu^＋ ion irradiation to doses of 3×10^16 and 5×10^16 ions/cm^2. The optical absorption properties of Ag nanoparticles are also tailored by these ways.

关 键 词：NANOPARTICLES Ion implantation Transmission electron microscopy 

分 类 号：O614.122[理学—无机化学] TB332[理学—化学]