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.

引用

页数：7

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