53 citations · 168 across the 8 of their papers we have counts for
8 papers
Electron-Phonon Coupling, Thermal Expansion Coefficient, Resonance Effect and Phonon Dynamics in High Quality CVD Grown Mono and Bilayer MoSe2
Deepu Kumar, Vivek Kumar, Rahul Kumar +2
Probing phonons, quasi-particle excitations and their coupling has enriched our understanding of these 2D materials and proved to be crucial for developing their potential applicat…
Fractional Spin fluctuations and quantum liquid signature in Gd2ZnIrO6
Birender Singh, Deepu Kumar, Vivek Kumar +5
Hitherto, the discrete identification of quantum spin liquid phase, holy grail of condensed matter physics, remains a challenging task experimentally. However, the precursor of qua…
Role of Metal Nanoparticles on porosification of silicon by metal induced etching (MIE)
Shailendra K. Saxena, Priyanka Yogi, Pooja Yadav +6
Porosification of silicon (Si) by metal induced etching (MIE) process have been studies here to understand the etching mechanism. The etching mechanism has been discussed on the ba…
Interplay between Phonon Confinement and Fano Effect on Raman line shape for semiconductor nanostructures: Analytical study
Priyanka Yogi, Shailendra K. Saxena, Suryakant Mishra +7
Theoretical Raman line shape functions have been studied to take care of quantum confinement effect and Fano effect individually and jointly. The characteristics of various Raman l…
Micro-Raman and field emission studies of silicon nanowires prepared by metal assisted chemical etching
Vivek Kumar, Shailendra K. Saxena, Vishakha Kaushik +3
Micro-Raman scattering and electron field emission characteristics of silicon nanowires (SiNWs) synthesized by metal assisted chemical etching (MACE) are investigated. Scanning ele…
Comparison of porous silicon prepared using metal-induced etching (MIE) and laser-induced etching (LIE)
Shailendra K. Saxena, Vivek Kumar, Hari M. Rai +6
Porous silicon (p-Si), prepared by two routes (metal induced etching (MIE) and laser induced etching (LIE)) have been studied by comparing the observed surface morphologies using S…
Defect free visible photoluminescence from laser-generated germanium nanoparticles
Manoj Kumar, Rajesh Kumar, Vivek Kumar +1
Origin of room temperature visible photoluminescence (PL) from defect free germanium (Ge) nanoparticles have been discussed here. The Ge nanoparticles produced by laser-induced etc…
Thermal effects on electron-phonon interaction in silicon nanostructures
Rajesh Kumar, Vivek Kumar, A. K. Shukla
Raman spectra from silicon nanostructures, recorded using excitation laser power density of 1.0 kW/cm^2, is employed here to reveal the dominance of thermal effects at temperatures…