Laser-induced growth and self-organization of silver nanoparticles in colloidal polymers

被引：7
|
作者：
Bagratashvili, V. N. [1 ]
Rybaltovskii, A. O. [2 ]
Ilyukhin, S. S. [1 ]
Zakharkina, O. L. [1 ]
Panchenko, V. Ya [1 ]
Timashev, P. S. [1 ]
Timofeev, M. A. [2 ]
Tsypina, S. I. [1 ]
Yusupov, V. I. [3 ]
Evlyukhin, A. B. [4 ]
Chichkov, B. N. [1 ,4 ]
机构：
[1] Russian Acad Sci, Inst Laser & Informat Technol, Troitsk 142190, Russia
[2] Moscow MV Lomonosov State Univ, Nucl Phys Res Inst, Moscow 119991, Russia
[3] Russian Acad Sci, Far Eastern Branch, VI Ilichev Pacific Oceanol Inst, Vladivostok 690041, Russia
[4] Laser Zentrum Hannover eV, D-30419 Hannover, Germany
来源：
LASER PHYSICS | 2014年 / 24卷 / 12期
基金：
俄罗斯科学基金会; 俄罗斯基础研究基金会;
关键词：
silver nanoparticles; polymer composite; thermocapillary convection; dynamic active colloid; NANOCOMPOSITES; SURFACE; FILMS; GLASS;
D O I：
10.1088/1054-660X/24/12/126001
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The effects of CW laser radiation with a wavelength of lambda = 532 nm on ethyl methacrylate copolymer films doped with the Ag(hfac)COD silver precursor were studied. Laser heating of the polymer composite (up to 150-170 degrees C), induced by the formation of highly absorbing silver nanoparticles (NPs), brings about an accelerated photo-thermochemical decomposition of the precursor, plastification of the polymer, local transition of the composite matrix to a colloidal state and intense thermocapillary convection in the dynamic active colloid formed. As a result, a directed transport of silver NPs from the center of the laser beam to its periphery takes place, leading to the formation of a ring structure with a very high concentration of silver NPs.
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收藏
页数：7
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