Femtosecond laser-produced plasma driven nanoparticle formation in gold aqueous solution

被引：10

作者：

Kononenko, Vitali V. ^{[1
]}

Ashikkalieva, Kuralay K. ^{[1
]}

Arutyunyan, Natalia R. ^{[1
]}

Romshin, Alexey M. ^{[1
]}

Kononenko, Taras, V ^{[1
]}

Konov, Vitaly, I ^{[1
]}

机构：

[1] Russian Acad Sci, Prokhorov Gen Phys Inst, Vavilov Str 38, Moscow, Russia

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2022年 / 426卷

基金：

俄罗斯科学基金会;

关键词：

Liquid water; Gold aqueous solution; Intense laser radiation; Laser-induced plasma; Multiphoton absorption; Electron avalanche development; Solvation; Nanoparticle synthesis; LIQUID WATER; PHOTOCHEMICAL REDUCTION; HYDRATED ELECTRON; METAL-IONS; LIGHT; AU; ENHANCEMENT; MECHANISMS; PHOTOLYSIS; DYNAMICS;

D O I：

10.1016/j.jphotochem.2021.113709

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：

We report an experimental study of laser-induced plasma in a gold aqueous solution (H[AuCl4]) and we explore the correlation between plasma properties and rate of the synthesis of gold nanoparticles (Au NPs). The concentration of photo-excited carriers produced by a Ti-sapphire laser (wavelength 800 nm, pulse duration 120 fs) was probed in a extremely wide range of laser energies (similar to 0.2-200 mu J) using a pump-probe and scattering microscopy techniques. The experimental data that we obtained enabled us (i) to identify the multiphoton and avalanche regimes of the ionization process in liquid water and (ii) to link the mechanisms of laser ionization with the possibility of NPs synthesis.

引用

页数：7

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