11 citations · 11 across the 2 of their papers we have counts for
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pH Dependent surface enhanced Raman study of Phe + Ag Complex and DFT calculations for spectral analysis
Animesh K. Ojha, Achintya Singha, Swagata Dasgupta +2
Surface enhanced Raman spectra of Phenylalanine (Phe) in Ag colloidal solution have been recorded for Phe solutions of different pH. Spectral line-shape analyses of the enhanced mo…
Quantitative Analysis of Photo-Thermal Stability of CdSe/CdS Core-Shell Nanocrystals
A. Singha, A. Roy
We report here investigations on the instability in luminescence of bare (TOPO-stabilized) and CdS- capped CdSe particles under infrared radiation. During photo-thermal annealing t…
Raman Measurements and Stress Analysis in Gallium Ion Implanted Gallium Nitride Epitaxial Layers on Sapphire
S. Mal, A. Singha, S. Dhara +1
In this article, we estimate hydrostatic stress developed in gallium ion implanted gallium nitride epitaxial layers using Raman measurements. We have calculated deformation potenti…
Electron and Phonon Confinement and New Surface Phonon Modes in CdSe-CdS Core-Shell Nanocrystals
A. Singha, B. Satpati, P. V. Satyam +1
Optical and vibrational properties of bare and CdS shelled CdSe nanocrystalline particles are investigated. To confirm the formation of such nanocrystals in our samples we estimate…