Real-time manipulation of gold nanoparticles inside a scanning electron microscope

被引：16
|
作者：
Vlassov, Sergei [1 ]
Polyakov, Boris [1 ,2 ]
Dorogin, Leonid M. [1 ]
Lohmus, Ants [1 ]
Romanov, Alexey E. [1 ,3 ]
Kink, Ilmar [1 ,4 ]
Gnecco, Enrico [5 ]
Lohmus, Ruenno [1 ]
机构：
[1] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia
[2] Univ Latvia, Inst Solid State Phys, LV-1063 Riga, Latvia
[3] RAS, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[4] Estonian Nanotechnol Competence Ctr, EE-51014 Tartu, Estonia
[5] IMDEA Nanociencia, Madrid 28049, Spain
来源：
SOLID STATE COMMUNICATIONS | 2011年 / 151卷 / 09期
关键词：
Nanostructures; Surfaces and interfaces; Scanning and transmission electron microscopy; Mechanical properties; SPRING CONSTANTS; FORCE MICROSCOPY; SURFACE;
D O I：
10.1016/j.ssc.2011.02.020
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The forces needed to overcome static friction and move 150 nm diameter Au nanoparticles on an oxidized Si substrate were measured in Normal and Shear oscillation modes inside a scanning electron microscope (SEM) in real time. The experimental setup consisted of a quartz tuning fork (QTF) mounted onto a high-precision 3D nanomanipulator used with a glued silicon or tungsten tip as a force sensor. Static friction was found to range from tens of nN to several hundred nN. Large variations in static friction values were related to differences in particle shape. Kinetic friction tended to be close to the detection limit and in most cases did not exceed several nN. The influence of thermal treatment in reducing the static friction of nanoparticles was considered. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：688 / 692
页数：5
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