Underwater laser ablation approach to fabricating monodisperse metallic nanoparticles

被引:33
作者
Zhu, X. P. [1 ]
Suzuki, Tsuneo
Nakayama, Tadachika
Suematsu, Hisayuki
Jiang, Weihua
Niihara, Koichi
机构
[1] Dalian Univ Technol, Sch Mat Sci & Engn, Surface Engn Lab, Dalian 116024, Peoples R China
[2] Nagaoka Univ Technol, Extreme Energy Dens Res Inst, Nagaoka, Niigata 9402188, Japan
关键词
D O I
10.1016/j.cplett.2006.05.119
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
Pulsed laser ablation of Ag bulk in distilled water is investigated to synthesize metallic nanoparticles. Formation of Ag colloids abundant with fine particles no more than 4 nm has been achieved by introducing a new experimental scheme. Subsequent colloid aging led to significant narrowing of size distribution and refining of particle shape (from ellipsoidal or irregular to spherical). Morphology modification of the particles is attributed to a selective sedimentation of the suspensions during the aging. We demonstrate here a possibility of producing monodisperse metallic nanoparticles using the laser approach in a simple scheme. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:127 / 131
页数:5
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