179 citations · 949 across the 23 of their papers we have counts for
10 papers · 1 filter
Structural, optical and mechanical properties of Y2Ti2O7 single crystal
M. Suganya, K. Ganesan, P. Vijayakumar +3
We report on the growth of Y2Ti2O7 single crystals by optical floating zone technique. X-ray diffraction and Raman spectroscopy studies confirm the structural quality of the crysta…
Structural, Raman and photoluminescence studies on nanocrystalline diamond films: Effects of ammonia in feedstock
K. Ganesan, P. K. Ajikumar, S. K. Srivatava +1
Herein, we report on the improvement of structural quality and enhancement of photoluminescence (PL) emission for an optimally N doped nanocrystalline diamond (NCD) film. Pure and…
Role of microstructure and structural disorder on tribological properties of polycrystalline diamond films
P. K. Ajikumar, K. Ganesan, N. Kumar +3
Polycrystalline diamond films with systematic change in microstructure that varies from microcrystalline to nanocrystalline structure are synthesized on Si by hot filament chemical…
Si and N - vacancy color centers in discrete diamond nanoparticles: Raman and fluorescence spectroscopic studies
K. Ganesan, P. K. Ajikumar, S. Ilango +2
The present study reports on an innovative method to prepare discrete diamond nanoparticles or nanodiamonds (NDs) with high structural and optical quality through top-down approach…
Flipping growth orientation of nanographitic structures by plasma enhanced chemical vapor deposition
Subrata Ghosh, K. Ganesan, S. R. Polaki +5
Nanographitic structures (NGSs) with multitude of morphological features are grown on SiO2/Si substrates by electron cyclotron resonance - plasma enhanced chemical vapor deposition…
The role of substrate bias and nitrogen doping on the structural evolution and local elastic modulus of diamond-like carbon films
S. R. Polaki, K. Ganesan, S. K. Srivastava +2
Diamond-like carbon (DLC) films are synthesized on Si using plasma enhanced chemical vapor deposition. The role of substrate bias and nitrogen doping on the structural evolution an…
An upper limit on the lateral vacancy diffusion length in diamond
J. O. Orwa, K. Ganesan, J. Newnham +9
Ion implantation is widely used to modify the structural, electrical and optical properties of materials. By appropriate masking, this technique can be used to define nano- and mic…
A comparative study on defect estimation using XPS and Raman spectroscopy in few layer nanographitic structures
K. Ganesan, Subrata Ghosh, Nanda Gopala Krishna +3
Defects in planar and vertically oriented nanographitic structures (NGSs) synthesized by plasma enhanced chemical vapor deposition (PECVD) has been investigated using Raman and X-r…
A route towards controlling the morphology of vertical graphene nanosheets
Subrata Ghosh, K. Ganesan, S. R. Polaki +1
Herein, an effort has given to sheds light on the effects of plasma process parameters on the growth of vertical graphene nanosheets (VGNs) by plasma enhanced chemical vapor deposi…
Evolution and defect analysis of vertical graphene nanosheets
Subrata Ghosh, K. Ganesan, Shyamal R. Polaki +4
We report catalyst-free direct synthesis of vertical graphene nanosheets (VGNs) on SiO2/Si and quartz substrates using microwave electron cyclotron resonance - plasma enhanced chem…