Controlled morphology of Ag nanocolumns by oblique angle deposition： kinetic Monte Carlo simulation  

作　　者：梁景舒 陈书汉 林恩宇 江绍基 

机构地区：[1]State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University~ Guangzhou 510275, China

出　　处：《Chinese Optics Letters》2013年第13期26-29,共4页中国光学快报（英文版）

摘　　要：Fabrication of Ag or Au nanocolumns by oblique angle deposition （OAD） is now prevalent for their surface enhanced Raman scattering （SERS） property and their biosensor application. However, the size, shape, and the density of nanocolumns are not directed in a desired way. To sufficiently realize the growth process controlled by multiple physical factors like deposition angle （a）, substrate temperature （T）, and deposition rate （F）, we develop a three-dimensional （3D） kinetic Monte Carlo （KMC） model for simulating processes of Ag nanocolumnar growth by oblique angle deposition. The dependences of nanocolumnar morphologies on these factors are analyzed. The mimical results reach a reasonable agreement with the experimental morphologies generated bv OAD.Fabrication of Ag or Au nanocolumns by oblique angle deposition （OAD） is now prevalent for their surface enhanced Raman scattering （SERS） property and their biosensor application. However, the size, shape, and the density of nanocolumns are not directed in a desired way. To sufficiently realize the growth process controlled by multiple physical factors like deposition angle （a）, substrate temperature （T）, and deposition rate （F）, we develop a three-dimensional （3D） kinetic Monte Carlo （KMC） model for simulating processes of Ag nanocolumnar growth by oblique angle deposition. The dependences of nanocolumnar morphologies on these factors are analyzed. The mimical results reach a reasonable agreement with the experimental morphologies generated bv OAD.

分 类 号：O657.37[理学—分析化学] P736.21[理学—化学]