Pressure-induced evaporation dynamics of gold nanoparticles on oxide substrate

Gang Meng, Takeshi Yanagida, Masaki Kanai, Masaru Suzuki, Kazuki Nagashima, Bo Xu, Fuwei Zhuge, Annop Klamchuen, Yong He, Sakon Rahong, Shoichi Kai, Tomoji Kawai

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Here we report thermal evaporation dynamics of Au nanoparticles on single crystal oxide substrates, including MgO, SrTiO3, and Al 2O3. The size reduction rate of Au nanoparticles via thermal treatments is strongly dependent on not only temperature but also pressure. Lowering the pressure of inert Ar gas from 105 to 10 Pa increases the size reduction rate over 30 times in the temperature range 800 C-950 C. The temperature dependence is solely due to the variation of saturated vapor pressure of Au, whereas the pressure dependence of the surrounding inert gas can be interpreted in terms of a pressure dependence on a gas-phase diffusion of evaporated Au atoms into the surroundings. We present a simplified model to explain an evaporation dynamics, which well describes the pressure dependence on a size reduction rate of Au nanoparticles. By utilizing this useful pressure-induced evaporation dynamics, we succeeded in manipulating a size reduction of Au nanoparticle arrays down to -10 nm diameter range from -300 nm initial size by programming sequentially a surrounding pressure.

Original languageEnglish
Article number012405
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume87
Issue number1
DOIs
Publication statusPublished - Jan 23 2013
Externally publishedYes

Fingerprint

Gold Nanoparticles
Evaporation
Oxides
Substrate
evaporation
gold
nanoparticles
oxides
pressure dependence
Nanoparticles
rare gases
programming
vapor pressure
vapor phases
Single Crystal
Temperature Dependence
temperature dependence
temperature
Range of data
single crystals

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

Cite this

Pressure-induced evaporation dynamics of gold nanoparticles on oxide substrate. / Meng, Gang; Yanagida, Takeshi; Kanai, Masaki; Suzuki, Masaru; Nagashima, Kazuki; Xu, Bo; Zhuge, Fuwei; Klamchuen, Annop; He, Yong; Rahong, Sakon; Kai, Shoichi; Kawai, Tomoji.

In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol. 87, No. 1, 012405, 23.01.2013.

Research output: Contribution to journalArticle

Meng, Gang ; Yanagida, Takeshi ; Kanai, Masaki ; Suzuki, Masaru ; Nagashima, Kazuki ; Xu, Bo ; Zhuge, Fuwei ; Klamchuen, Annop ; He, Yong ; Rahong, Sakon ; Kai, Shoichi ; Kawai, Tomoji. / Pressure-induced evaporation dynamics of gold nanoparticles on oxide substrate. In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 2013 ; Vol. 87, No. 1.
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AU - Xu, Bo

AU - Zhuge, Fuwei

AU - Klamchuen, Annop

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