52 citations
- National Taiwan UniversityTW8 papers
- Bhabha Atomic Research CentreIN3 papers
- Institute of Atomic and Molecular Sciences, Academia SinicaTW3 papers
- Indian Institute of Technology KharagpurIN2 papers
- Institute of Physics, BhubaneshwarIN2 papers
- Nagoya Institute of TechnologyJP2 papers
- National Cheng Kung UniversityTW2 papers
- PSG INSTITUTE OF TECHNOLOGY AND APPLIED RESEARCHIN2 papers
- Anna University, ChennaiIN1 paper
- Anna University Regional Campus, Coimbatore1 paper
- Atomic Energy Regulatory BoardIN1 paper
- Bhabha Atomic Research Center HospitalIN1 paper
15 papers · 1 filter
Phonon confinement and substitutional disorder in Cd1-xZnxS Nanocrystals
Satyaprakash Sahoo, S. Dhara, V. Sivasubramanian +2
1LO optical phonons in free-standing mixed Cd1-xZnxS nanocrystals, synthesized using chemical precipitation, are investigated using Raman spectroscopy. As expected for the nanocrys…
Modified Electron Beam Induced Deposition of Metal Nanostructure Arrays using a Parallel Electron Beam
Joysurya Basu, C. Barry Carter, R. Divakar +2
A modified electron beam induced deposition method using a parallel beam of electrons is developed. The method relies on the build-up of surface potential on an insulating surface…
Phonon Confinement in Stressed Silicon Nanocluster
Satyaprakash Sahoo, S. Dhara, S. Mahadevan +1
Confined acoustic and optical phonons in Si nanoclusters embedded in sapphire, synthesized using ion-beam implantation are investigated using Raman spectroscopy. The l = 0 and l =…
A complete Raman mapping of phase transitions in Si under indentation
C. R. Das, H. C. Hsu, S. Dhara +7
Crystalline Si substrates are studied for pressure induced phase transformation under indentation at room temperature using Berkovich tip. Raman scattering study is used for the id…
Excitation energy dependence of electron-phonon interaction in ZnO nanoparticles
Satyaprakash Sahoo, V Sivasubramanian, S Dhara +1
Raman spectroscopic investigations are carried out on ZnO nanoparticles for various photon energies. Intensities of E1-LO and E2 modes exhibit large changes as the excitation energ…
Surface optical Raman modes in InN nanostructures
Satyaprakash Sahoo, M. S. Hu, C. W. Hsu +5
Raman spectroscopic investigations are carried out on one-dimensional nanostructures of InN,such as nanowires and nanobelts synthesized by chemical vapor deposition. In addition to…