Structural Modification in Carbon Nanotubes by Boron Incorporation (2009)
Handuja, Sangeeta, Srivastava, P, Vankar, V. D.
We have synthesized boron-incorporated carbon nanotubes (CNTs) by decomposition of ferrocene and xylene in a thermal chemical vapor deposition set up using boric acid as the boron source. Scanning...
Pandey, P T, Sharma, G L, Awasthi, D K, Vankar, V D
Diamond thin films have been synthesized by hot-filament chemical vapor deposition process using a mixture of methane and hydrogen gases. The samples were subjected to very high-energy ion...
Growth of 8H polytype of diamond using cyclic growth/etch oxy-acetylene flame setup (1998)
Kapil, R, Mehta, B R, Vankar, V D
Diamnnd thin films were deposited using a cyclic growth/etch oxy-acetylene process on tungslen substrates, Growth of 8H polytype of diamond was observed in the diamond thin films. Dcpusilion was 8H...
Growth of diamond thin films in a cyclic growth–etch oxy-acetylene flame process (1998)
Kapil, R, Mehta, B R, Vankar, V D, Roy, C, Pradhan, A
Diamond thin films have been grown using a cyclic growth–etch oxy-acetylene flame process on Si, W and Mo substrates. This process resulted into the growth of cubic diamond, 8H and 15R polytypes of...
Adhesion enhancement of diamond coatings on WC tools by high energy ion irradiation (1998)
Dilawar, Nita, Kapil, Rahul, Vankar, V D, Avasthi, D.K., Kabiraj, D, Mehta, G K
Microcrystalline diamond thin films were deposited on cemented tungsten carbide cutting tools by hot-filament chemical vapour deposition process. The coatings deposited were irradiated with 50 MeV...
Microstructural studies of molybdenum silicide thin films by spectroscopic ellipsometry (1997)
Thin films of compositions Mo,,Si,, and Mo,,Si,, were co-sputtered onto p-type silicon substrates and annealed using a rapid thermal annealing system. The spectroscopic ellipsometric studies were...
Raman spectroscopy of polycrystalline molybdenum silicide thin films (1997)
Polycrystalline molybdenum disilicide thin films have been prepared by RF magnetron co-sputtering of molybdenum andsilicon onto P-type silicon (100) substrates and annealing thereafter using RTA...
On the determination of the sp3 to sp2 ratio in diamond-like carbon thin films (1997)
Mahajan, Somna S, Barshilia, H C, Mehta, B R, Vankar, V D
The carbon bonding ratio in diamond-like carbon (DLC) thin films has been estimated from the ε2 spectra obtained by spectroscopic ellipsometry. A method has been developed to find out the atomic...
Radiation hardness of polycrystalline diamond thin films irradiated with 100 MeV I7+ ions (1997)
Dilawar, N, Kapil, R, Vankar, V D, Avasthi, D K, Kabiraj, D, Mehta, G K
Polycrystalline diamond thin films grown by hot-filament chemical vapour deposition (CVD) process were irradiated with 100 MeV I7+ ions. The as-deposited and irradiated films were characterized using...
Ellipsometric Studies of Polycrystalline Molybdenum Silicide Thin Films (1996)
Systematic ellipsometric studies of MoSia(tetragona1) thin films formed by RTA processing of cosputtered Mo&i75, Mql&,, and Mo&ia thin films are discussed. The optical properties of these films in...
Ellopsometric studies of polycrystalline molybdenum silicide thin films (1996)
Systematic ellipsometric studies of MoSi2(tetragona1) thin films formed by RTA processing of cosputtered Mo25 Si75,Mo30 Si70 and Mo36 Si64 thin films are discussed. The optical properties of these...
High energy ion beam induced modifications in diamond and diamond like carbon thin films (1996)
Dilawar, N, Sah, S, Mahta, B R, Vankar, V D, Avasthi, D K, Mehta, G K
Diamond and DLC thin films deposited using hot-filament chemical vapour deposition technique at various parameters were irradiated with 50 MeV ST’ ions. The resulting microstructural changes were...
Ellipsometric studies of polycrystalline molybdenum silicide thin films (1996)
Systematic ellipsometric studies of MoSia tetragona1) thin films formed by RTA processing of cosputtered Mo25&i75, Mo30Si70 and Mo36&i64 thin films are discussed. The optical properties of these...
Study of Hydrogen in DLC Film by ERDA with 58Ni Ions (1995)
Avasthi, D K, Kabiraj, D, Mehta, G K, Barshilia, H C, Sah, Somna, ...
The content of hydrogen and its depth profile in diamond like carbon (DLCI films deposited by the microwave plasma deposition technique is determined by Elastic Recoil Detection Analysis (ERDA) using...
Barshilia, H C, Sah, Somna, Mehta, B R, Vankar, V D, Avasthi, D K, ...
The effect of high energy (85 MeV) nickel ions on diamond-like carbon thin films, deposited by microwave discharge of acetylene and methane gases mixed with hydrogen, has been investigated. IR, Raman...
Avasthi, D K, Kabiraj, D, Bhagwat, A, Mehta, G K, Vankar, V D, Ogale, S B
Elastic Recoil Detection Analysis (ERDA) using ΔE-E telescope with gaseous ΔE detector is carried out for the first time for simultaneous detection of H alongwith other light elements C, N, and O...
Rastogi, R S, Vankar, V D, Chopra, K L
Thin films of MoSix (with and without oxygen) were deposited by co-sputtering of molybdenum and silicon targets. As-deposited films were annealed in argon environment in the temperature range...
Interaction of Mo/Ni and Mo/Co bilayer structures with silicon (1991)
Rastogi, R S, Vankar, V D, Chopra, K L
The thin film interaction of Mo/Ni and Mo/Co bilayer structures was investigated in the temperature range 500–650 °C by Auger electron spectroscopy and glancing angle X-ray diffraction. It was...