1Inter University Accelerator Centre, New Delhi 110067, India
2Jamia Millia Islamia, New Delhi 110025, India
Adv. Mater. Lett., 2013, Ion Beam Special Issue, 4 (6), pp 402-407
DOI: 10.5185/amlett.2012.ib.103
Publication Date (Web): Mar 16, 2013
Copyright © IAAM-VBRI Press
E-mail: indra.sulaniya@gmail.com, indra@iuac.res.in
We present the formation of Ge nanostructures by bombardment of 1.5 keV Ar atoms on Ge (100). The bombardment was carried out at normal incidence with variation in the fluences from 5x1015 to 3x1017 atoms/cm2. Near surface chemical study on the pristine and irradiated Ge samples has been carried out using X-ray Photoelectron Spectroscopy. In the near surface region of pristine sample, prominence of Ge4+ was observed by 3d core level present at a binding energy of 33.5 eV. After the irradiation, the evolution of two new core level peaks at binding energies of 29.8 and 30.4 eV confirms the reduction of Ge4+ to elemental Ge. Atomic Force Micrographs show an increase in surface roughness from 0.4 nm to 10 nm for pristine to sample irradiated at highest fluence. Using the scaling laws and calculating the roughness and growth exponents deduced from Power Spectral Density analysis, it has been found that ion induced coarsening leads to the surface roughening. Further, using the simulation code, it is found that with increasing fluence of bombardment, the deformation of surface starts initially which later on results in simultaneous formation of dots and pits.
Germanium, Ion Bombardment, Atomic Force Microscopy, X-ray Photoelectron Spectroscopy.
Water and Sanitation Management: During and after COVID-19 Pandemic
Polymeric Energy Materials: Development and Challenges
Influence of Different Copolymer Based Compatibilizers on Performance of Pristine and Recycled PP/PE blends
Bio Ceramics: New Material from Mangrove Bark
Hybrid Physical Chemical Vapour Deposition (HPCVD) of Superconducting MgB2 Thin Films on three Dimensional Copper Substrates
Photoinduced Electron Transfer Reactions of tris(4,4’-dimethoxy-2,2’-bipyridyl)ruthenium(II)cation with Quinones in Aqueous Medium
A Comparative Study of Green Synthesized AgNPs using Carissa Carandas and Nerium indicum Leaves and its Activities against Selected Human Pathogens and MCF 7 Cell
Design and Modelling of Carbon Fiber Grid Structure based Carbon/Epoxy Composites for Enhanced Microwave Absorbing Properties
Elaboration and Characterization of Macroporous Bioceramics using Polymeric Sponge Replication Method
Advanced Healthcare Biomaterials
Piezoelectric Alternative Energy Sources as a Part of the Global Energy Concerns – Future Prospects in the Science and Market
Rectify the Injury-Induced Microenvironment Imbalance in Peripheral Nerve Repair
A Mini Review on Biodegradable Magnesium Alloy Vascular Stent
Prospective Applications of Marine Oriented Materials in the Repair of Peripheral Nerve Injury
Design and Implementation of Dynamic FPAA Based Interface Circuit for Thin Film Lead-Free Piezoelectric Sensors
An Аpproach for Nanostructuring of Piezoelectric Materials by Template-assisted Growth in Porous Aluminum Oxide
Study of Sputtered Barium Strontium Titanate Films for Energy Harvesting Applications
The Effect of Bias on Properties of DLC Coatings for Artificial Joints
Fabrication of Tens-micron-sized Functionalized Polystyrene Microspheres for Utilization in Chiral Drug Isolation
Copyright ©2010-2020 VBRI Press
Full Article