Now showing items 1-9 of 9

    • Hydrogen in chemical vapour deposited carbon nanotubes : an active site for functionalization 

      TITUS, E; CABRAL, G; MADALENO, JC; COELHO, MC; BABU, PR; BLAU, WJ; MISRA, DS; GRACIO, J (AMER SCIENTIFIC PUBLISHERS, 2008)
      The presence of hydrogen in as-grown carbon nanotubes (CNTs) synthesized by microwave plasma (MP) chemical vapour deposition (CVD) technique is demonstrated. Our results showed that the MPCVD, as-grown CNTs were hydrogenated ...
    • Nitrogen and hydrogen related infrared absorption in CVD diamond films 

      TITUS, E; ALI, N; CABRAL, G; MADALENO, JC; NETO, VF; GRACIO, J; RAMESH BABU, P; SIKDER, AK; OKPALUGO, TI; MISRA, DS (Elsevier, 2005)
      In this paper, we investigate on the presence of hydrogen and nitrogen related infrared absorptions in chemical vapour deposited (CVD) diamond films. Investigations were carried out in cross sections of diamond windows, ...
    • Nitrogen and hydrogen related infrared absorption in CVD diamond films 

      TITUS, E; ALI, N; CABRAL, G; MADALENO, JC; NETO, VF; GRACIO, J; BABU, PR; SIKDER, AK; OKPALUGO, TI; MISRA, DS (ELSEVIER SCIENCE SA, 2006)
      In this paper, we investigate on the presence of hydrogen and nitrogen related infrared absorptions in chemical vapour deposited (CVD) diamond films. Investigations were carried out in cross sections of diamond windows, ...
    • Optimisation of the new time-modulated CVD process using the Taguchi method 

      ALI, N; NETO, F; MEI, S; CABRAL, G; KOUSAR, Y; TITUS, E; OGWU, AA; MISRA, DS; GRACIO, J (ELSEVIER SCIENCE SA, 2004)
      In this paper, we employ the Taguchi method to optimise our newly developed time-modulated chemical vapour deposition (TMCVD) process. TMCVD can be used to deposit smoother, nanocrystalline diamond (NCD) coatings onto a ...
    • Preparation of Ni-filled carbon nanotubes for key potential applications in nanotechnology 

      TYAGI, PK; SINGH, MK; MISRA, A; PALNITKAR, U; MISRA, DS; TITUS, E; ALI, N; CABRAL, G; GRACIO, J; ROY, M; KULSHRESHTHA, SK (ELSEVIER SCIENCE SA, 2004)
      Carbon nanotubes (CNTs) filled with ferromagnetic materials have the potentials for use in magnetic scanning probe microscopy and as an assembly of aligned high density magnetic nanocores for future magnetic data storage ...
    • Quantitative analysis of hydrogen in chemical vapor deposited diamond films 

      TITUS, E; MISRA, DS; SIKDER, AK; TYAGI, PK; SINGH, MK; MISRA, A; ALI, N; CABRAL, G; NETO, VF; GRACIO, J (ELSEVIER SCIENCE SA, 2005)
      In this investigation, diamond sheets have been deposited using chemical vapor deposition. The as-grown diamond sheets were characterized for hydrogen content using detailed infrared analysis. The deconvolution of the ...
    • Selective growth of vertically aligned carbon nanotubes by double plasma chemical vapour deposition technique 

      CABRAL, G; TITUS, E; MISRA, DS; GRACIO, J (AMER SCIENTIFIC PUBLISHERS, 2008)
      The selective growth of vertically aligned carbon nanotubes (VACNTs) on large area copper substrates was carried out using a double plasma hot-filament chemical vapour deposition system. Three independent power supplies ...
    • Synthesis of highly oriented carbon nanotube thin films by nickel functionalisation 

      TITUS, E; CABRAL, G; MADALENO, JC; NETO, VF; SHOKUHFAR, T; BLAU, WJ; BABU, PR; MISRA, DS; GRACIO, J (ELSEVIER SCIENCE SA, 2007)
      A novel method for fabricating thin films of oriented and densely packed metal functionalised carbon nanotubes (m-CNT) on silicon substrates is described. Positively charged metal ion from their salt solution was adsorbed ...
    • Thermogravimetric analysis of cobalt-filled carbon nanotubes deposited by chemical vapour deposition 

      RAMESH BABU, P; BLAU, WJ; TYAGI, PK; MISRA, DS; ALI, N; GRACIO, J; CABRAL, G; TITUS, E (Elsevier, 2006)
      In this paper, we report results from an investigation studying the purification of Co-filled carbon nanotubes (CNTs) using Thermogravimetric analysis (TGA). The as-grown CNTs were prepared using Microwave Plasma Chemical ...