Self-assembly of nanoparticles into nanowires under laser exposure in liquids

被引：15

作者：

Serkov, A. A. ^{[1
,2
]}

Barmina, E. V. ^{[1
]}

Kuzmin, P. G. ^{[1
]}

Shafeev, G. A. ^{[1
,3
]}

机构：

[1] Russian Acad Sci, Wave Res Ctr, AM Prokhorov Gen Phys Inst, Moscow 119991, Russia

[2] State Univ, Moscow Inst Phys & Technol, Fed State Educ Inst Higher Profess Educ, Moscow 141700, Russia

[3] Moscow Engn Phys Inst, Natl Res Nucl Univ MEPhI, Moscow 115409, Russia

来源：

CHEMICAL PHYSICS LETTERS | 2015年 / 623卷

基金：

俄罗斯基础研究基金会;

关键词：

GOLD NANOPARTICLES; ABLATION; NANORODS; FRAGMENTATION; IRRADIATION; BIOSENSORS; DEVICES; SENSORS; METAL;

D O I：

10.1016/j.cplett.2015.01.050

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Experimental results on the process of self-assembly of Au nanoparticles under their exposure to picosecond laser radiation in water are presented. Self-assembly of Au NPs into nanowires occurs under laser ablation of a bulk Au target, which is cathodically biased with respect to a Pt anode. Similar process is observed in excess of free electrons in solution due to presence of beta-active ions, e.g., Tritium. Self-assembly of Au NPs into nanowires also occurs under laser exposure of their dense colloidal solution to picosecond laser radiation and proceeds in an avalanche-like way. Possible mechanisms of self-assembly are discussed. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：93 / 97

页数：5

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