Gold nanoparticles; electron beam; transmission electron microscopy.
1School of Basic and Applied Sciences, Guru Gobind Singh Indraprastha University, Dwarka, New Delhi 110075, India
2Functional Nanomaterials, Institute for Materials Science, University of Kiel, Kaiserstrasse 2, 24143 Kiel, Germany
3Department of Material Science and Engineering, University of Sheffield, Sheffield, South Yorkshire, UK
4Inter University Accelerator Centre, Post Box -10502, New Delhi 110067, India
Adv. Mater. Lett., 2013, Ion Beam Special Issue, 4 (6), pp 444-448
DOI: 10.5185/amlett.2012.ib.111
Publication Date (Web): Mar 16, 2013
Copyright © IAAM-VBRI Press
E-mail: smiuac@gmail.com
Elongated Au nanoparticles (NPs) embedded in silica matrix were fabricated by 100 MeV Ag ion irradiation of 3 MeV Au ion implanted SiO2/Si(100) substrates, annealed at 1050oC. Electron-beam-induced shape evolution of elongated Au NPs embedded in SiO2 has been studied by high resolution transmission electron microscopy. Electron beam irradiation resulted in a decrease in the aspect ratio of Au NPs from ~ 1.4 to 1 with increase in irradiation time. The observed ellipsoidal-to-spherical shape transition of Au NPs has been ascribed mainly to the cumulative effects of electron beam induced heating, softening of silica matrix and radiation enhanced diffusion of knock-on displaced O and Si atoms, resulting in local stress relaxation.
Advanced Materials Research and Innovation Priorities for Accomplishing the Sustainable Development Goals
Contemporary Advances in Humidity Sensing Materials, Methods, and Performances
Roles of the Debye Length and Skin Depth in the Characterization of Space Charge Interactions in Semiconductor Nanoparticles
Antifungal Activity of Iron-gold and Cobalt-gold co-doped ZnO Nanoparticles
Adsorption and Thermodynamic Parameters of Activated Carbon-Diazepam Systems in Simulated Gastric Fluid
Synthesis, Impedance and Current-Voltage Spectroscopic Characterization of Novel Gadolinium Titanate Nano Structures
Removal of Toxic Dyes from Industrial Waste Water using Chitosan Grafted Itaconic Acid Nanocomposites
Structural, Optical and dielectric properties of Sr doped LaVO4
Design, 3D Development and Finite Element Analysis of Cylindrical Mesh Cage Bioimplants from Biometals
Advancements in Materials Technology for Accomplishing Sustainable Development Goals
A Review for Luminescence Property of Materials, Its Detection and Probabilities for Embedding of Luminescence with MEMS Technology
A Review on Low-Cost Adsorbents for Cadmium Pollutant Removal from Industrial Effluents
Study of Applications of Radial Basis Function Network in Forecasting
Simulation of LPG Pressure Vessel under Fire Engulfment
Strength Analysis of Friction Stir Welding (FSW) Joint Under Minimize Rotation Speed of FSW Tool
Formation of Pure In2O3 pallets for OLED Application
Study of Soil Nitrogen Level and Splitting on Nutrient Uptake around the Industries of Chhattisgarh, India