Direct evidence for electric field assisted dissolution of Au nanoparticles on glass surface

2009 ◽  
Vol 105 (10) ◽  
pp. 103114 ◽  
Author(s):  
Zhiyu Zou ◽  
Qiang Wang ◽  
Xiangjun Chen ◽  
Shiliang Qu
Keyword(s):  
Electric Field ◽  
Glass Surface ◽  
Au Nanoparticles ◽  
Direct Evidence

scholarly journals Electric Field Assisted Femtosecond Laser Preparation of Au@TiO2 Composites with Controlled Morphology and Crystallinity for Photocatalytic Degradation

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3816
Author(s):  
Xiaojie Li ◽  
Xin Li ◽  
Pei Zuo ◽  
Xiaozhe Chen ◽  
Misheng Liang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Electric Field ◽  
Photocatalytic Degradation ◽  
Au Nanoparticles ◽  
High Efficiency ◽  
Free Electron Density ◽  
Pulse Delay ◽  
Dye Pollutants ◽  
Amorphous Tio2 ◽  
Laser Liquid

TiO2 is popular in photocatalytic degradation dye pollutants due to its abundance and its stability under photochemical conditions. Au loaded TiO2 can achieve efficient absorption of visible light and deal with the problem of low conversion efficiency for solar energy of TiO2. This work presents a new strategy to prepare Au nanoparticles-loaded TiO2 composites through electric−field−assisted temporally−shaped femtosecond laser liquid-phase ablation of Au3+ and amorphous TiO2. By adjusting the laser pulse delay and electric field parameters, gold nanoparticles with different structures can be obtained, such as nanospheres, nanoclusters, and nanostars (AuNSs). AuNSs can promote the local crystallization of amorphous TiO2 in the preparation process and higher free electron density can also be excited to work together with the mixed crystalline phase, hindering the recombination between carriers and holes to achieve efficient photocatalytic degradation. The methylene blue can be effectively degraded by 86% within 30 min, and much higher than the 10% of Au nanoparticles loaded amorphous TiO2. Moreover, the present study reveals the crystallization process and control methods for preparing nanoparticles by laser liquid ablation, providing a green and effective new method for the preparation of high-efficiency photocatalytic materials.

Effect of additional applied thermal/electric field on the float-glass surface

2009 ◽  
Vol 24 (2) ◽  
pp. 308-311 ◽  
Author(s):  
Zuwu Shen ◽  
Qiming Liu ◽  
Li Meng ◽  
Hongcheng Wang
Keyword(s):  
Electric Field ◽  
Glass Surface ◽  
Float Glass

Formation and migration of H3O+ and OH− ions at the water/silica and water/vapor interfaces under the influence of a static electric field: a molecular dynamics study

2020 ◽  
Vol 22 (39) ◽  
pp. 22537-22548
Author(s):  
Jesse Lentz ◽  
Stephen H. Garofalini
Keyword(s):  
Molecular Dynamics ◽  
Water Vapor ◽  
Electric Field ◽  
Glass Surface ◽  
Water Migration ◽  
Static Electric Field ◽  
Water Layers ◽  
And Migration

Water ‘layers’ 1 and 2 in pink; ‘layer’ 3 in blue and green over portion of glass surface (grey). +90° field causes water migration and clustering.

scholarly journals Morphology control of gold nanoparticles on glass surface realized by electric field assisted dissolution method

2012 ◽  
Vol 61 (10) ◽  
pp. 104208
Author(s):  
Zou Zhi-Yu ◽  
Liu Xiao-Fang ◽  
Zeng Min ◽  
Yang Bai ◽  
Yu Rong-Hai ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Electric Field ◽  
Glass Surface ◽  
Morphology Control ◽  
Dissolution Method

Improvement of two-dimensional material-based photodetector through surface plasmon

2020 ◽  
Vol 34 (28) ◽  
pp. 2050258
Author(s):  
Minyu Bai ◽  
Huan Liu ◽  
Fei Xie ◽  
Weiguo Liu ◽  
Shuai Wen
Keyword(s):  
Absorption Spectrum ◽  
Electric Field ◽  
Surface Plasmon ◽  
Au Nanoparticles ◽  
Distribution Density ◽  
Visible Range ◽  
Two Dimensional ◽  
Face To Face ◽  
High Responsivity ◽  
Poor Absorption

Two-dimensional material-based photodetectors (PDs) show great potential owing to unique optoelectronic characteristics and attract much attention in research. However, poor absorption of two-dimensional material remains a vital restriction. Responsivity improvement by applying Au nanoparticles (NPs) through surface plasmon (SP) is studied both in theory and simulation. The effect of size and NPs distribution density is analyzed concerning absorption promotion and fabrication feasibility. Both absorption spectrum and inner electric field are studied. A novel face-to-face PD is proposed that performs better in visible range. The results can be helpful in two-dimensional material PD design and fabrication where high responsivity is required.

Hybrid nanostructure of SiO2@Si with Au-nanoparticles for surface enhanced Raman spectroscopy

Nanoscale ◽  
2019 ◽  
Vol 11 (28) ◽  
pp. 13484-13493 ◽  
Author(s):  
Huan Yang ◽  
Ben Q. Li ◽  
Xinbing Jiang ◽  
Jinyou Shao
Keyword(s):  
Raman Spectroscopy ◽  
Electric Field ◽  
Au Nanoparticles ◽  
Surface Enhanced Raman Spectroscopy ◽  
Local Electric Field ◽  
Hybrid Nanostructure ◽  
Hybrid Resonance ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Hybrid resonance enhanced local electric field for Raman sensing.

Electric Field Induced Au Nanoparticles with Controllable Morphology Under Surfactantless Condition

2010 ◽  
Vol 2 (3) ◽  
pp. 248-252 ◽  
Author(s):  
Guangqiang Liu ◽  
Weiping Cai ◽  
Jingjing Wang ◽  
Guotao Duan
Keyword(s):  
Electric Field ◽  
Au Nanoparticles

scholarly journals Enhanced photoelectrochemical performance of tungsten oxide film by bifunctional Au nanoparticles

RSC Advances ◽  
2017 ◽  
Vol 7 (25) ◽  
pp. 15201-15210 ◽  
Author(s):  
Yueqi Kong ◽  
Honggang Sun ◽  
Weiliu Fan ◽  
Li Wang ◽  
Hongkai Zhao ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Oxide Film ◽  
Electric Field ◽  
Tungsten Oxide ◽  
Au Nanoparticles ◽  
Photoelectrochemical Performance ◽  
Tungsten Oxide Film

Proposed mechanism of the synergistic effect of SPR and inner electric field in the Au/WO3.

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