Directed Assembly of Bimetallic Nanoparticles by Pulsed-Laser-Induced Dewetting: A Unique Time and Length Scale Regime

被引：36
作者：
Fowlkes, Jason D. [1 ]
Wu, Yueying [2 ]
Rack, Philip D. [1 ,2 ]
机构：
[1] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA
[2] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA
来源：
ACS APPLIED MATERIALS & INTERFACES | 2010年 / 2卷 / 07期
关键词：
dewetting; thin film; self-assembly; capillary force; Plateau-Rayleigh; spinodal; Rayleigh-Plateau; pulsed laser induced dewetting; DYNAMICS; FILMS; INSTABILITIES; HOLES;
D O I：
10.1021/am100417x
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Pulsed-laser-induced dewetting (PLiD) was used to assemble patterned, nanoscale metallic thin film features into bimetallic nanoparticles. The liquid-phase flow is related to a conventional droplet impact test and, in appropriate dimensions, have inertial and viscoinertial flow characteristics. The final size, morphology, composition, and interdiffusion of the nanoparticles is governed by the interplay of capillary, inertial, and viscous forces and an appropriate dimensional regime defined by competing Rayleigh-Plateau and spinodal instabilities.
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收藏
页码：2153 / 2161
页数：9
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