65 citations · 337 across the 15 of their papers we have counts for
15 papers
Generalization of Phonon Confinement Model for Interpretation of Raman Line-Shape from Nano-Silicon
Manushree Tanwar, Priyanka Yogi, Simran Lambora +5
A comparative analysis of two Raman line-shape functions has been carried out to validate the true representation of experimentally observed Raman scattering data for semiconductin…
Tent--Shaped Surface Morphologies of Silicon: Texturization by Metal Induced Etching
Priyanka Yogi, Deepika Poonia, Suryakant Mishra +4
Nano--metal/semiconductor junction dependent porosification of silicon (Si) has been studied here. The silicon (Si) nanostructures (NS) have been textured on n-- and p-- type silic…
Three-fold Constructive Perturbation for Significant Enhancement in Field Emission from Nickel Oxide Nano-Thorn
Suryakant Mishra, Priyanka Yogi, Shailendra K. Saxena +3
A power efficient and stable field emission (FE) has been reported here from Nickel Oxide nanostructures. Modification in device geometry and surface micro- (nano-) structure has b…
Observation, Evidence and Origin of Room Temperature Magnetodielectric Effect in Mn doped LaGaO3
Hari Mohan Rai, Shailendra K. Saxena, Vikash Mishra +2
We report an observation of room temperature magnetodielectric (RTMD) effect in Mn doped LaGaO3. Results of frequency dependent magnetoresistance (FDMR) measurements discards the p…
Metastable behavior of Urbach tail states in BaTiO3 across phase transition
Vikash Mishra, Archna Sagdeo, Kamal Warshi +4
The temperature dependent diffuse reflectance spectroscopy measurements were carried out on the polycrystalline samples of BaTiO3 across the tetragonal to cubic structural phase tr…
In-situ spectroscopic studies of viologen based electrochromic device
Suryakant Mishra, Haardik Pandey, Priyanka Yogi +4
Fabrication and operation of simple solid state electrochromic devices using ethyl viologen diperchlorate in a polymer matrix is presented here. In-situ Raman and transmission/abso…
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…
Half-metallicity in Armchair Boron Nitride Nanoribbons: A First-Principles Study
Hari Mohan Rai, Shailendra K. Saxena, Vikash Mishra +5
Using density functional theory, we predict half-metallicity in edge hydrogenated armchair boron nitride nanoribbons (ABNNRs). The predicted spin polarization is analyzed in detail…
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…
Room temperature magnetodielectric studies on Mn doped LaGaO3
Hari Mohan Rai, Ravikiran Late, Shailendra Saxena +4
The polycrystalline samples of LaGa1-xMnxO3 (0<x<0.3) has been prepared by solid state reaction route. The phase purity of these samples has been confirmed by powder x-ray diffract…
Intrinsic Half-metallicity in Edge Fluorinated Armchair Boron Nitride Nanoribbons
Hari Mohan Rai, Shailendra K Saxena, Vikash Mishra +5
We predict intrinsic half-metallicity in armchair boron nitride nanoribbons (ABNNRs) via edge fluorination. The stability, electronic and magnetic properties of bare and edge fluor…
Effect of silicon resistivity on its porosification using metal induced chemical etching
Shailendra K Saxena, Gayatri Sahu, P. K. Sahoo +2
A comparison of porous structures formed from silicon (Si) wafers with different resistivities has been reported here based on the morphological studies carried out using scanning…
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…
Evolution of Asymmetric Raman line-shape from nano-structures
Rajesh Kumar, Gayatri Sahu, Shailendra K. Saxena +2
A step-by-step evolution of an asymmetric Raman line-shape function from a Lorentzian line-shape is presented here for low dimensional semiconductors. The evolution reported here i…