The growth behavior of carbon nanotubes synthesized from C2H2 at the temperature range of 700 to 900°C and using thermal chemical vapor deposition (TCVD) method has been investigated. Thin films of nickel (Ni) catalyst, were coated on SiO2 substrates by ion beam sputtering technique. The formation of catalytic nickel nanoparticles was much increased when using NH3 as the environment gas which i...

the effect of temperature variation on the growth of carbon nanotubes (cnts) using thermal chemical vapor deposition (tcvd) is presented. nickel and cobalt (ni-co) thin films on silicon (si) substrates were used as catalysts in tcvd technique. acetylene gas was used in cnts growth process at the controlled temperature ranges from 850-1000 ̊ c. catalysts and cnts characterization was carried out ...

The effect of temperature variation on the growth of Carbon Nanotubes (CNTs) using Thermal Chemical Vapor Deposition (TCVD) is presented. Nickel and Cobalt (Ni-Co) thin films on Silicon (Si) substrates were used as catalysts in TCVD technique. Acetylene gas was used in CNTs growth process at the controlled temperature ranges from 850-1000 ̊ C. Catalysts and CNTs characterization was carried out ...

Graphene-based vertical electrodes may have applications in biomolecular recognition for producing low-cost biodevices with high electronic conductivity. However, they are unsuitable measuring small interfacial capacitance variations because graphene is mostly composed of basal sp2 carbon surface, which limits its sensitivity as an electrochemical biosensor. Herein, we introduce a monolayer bas...

The effect of temperature variation on the growth of Carbon Nanotubes (CNTs) using Thermal Chemical Vapor Deposition (TCVD) is presented. Nickel and Cobalt (Ni-Co) thin films on Silicon (Si) substrates were used as catalysts in TCVD technique. Acetylene gas was used in CNTs growth process at the controlled temperature ranges from 850-1000 ̊ C. Catalysts and CNTs characterization was carried out ...

The carbon nanomaterails having the brittle star-like morphology (bs-CNMs) could be synthesized using C2H2-SF6 gases under thermal chemical vapour deposition (TCVD) system. The micro-sized Ni grains were used as the catalyst for bs-CNMs on the Al2O3 substrate. The bs-CNMs could be obtained under the condition of the source gases flow rates at 100sccm for C2H2 and 50sccm for SF6. The bs-CNMs wer...

nanometric carbid silicon (sic) supported monometallic and bimetallic catalysts containing fe, co, ni transition metals were prepared by wet impregnation method. multiwall carbon nanotubes (mwcnts) were synthesized over the prepared catalysts from catalytic decomposition of acetylene at 850°c by thermal chemical vapor deposition (tcvd) technique. the synthesized nanomaterials (catalysts and cnt...

We carried out the carbon nanotubes (CNTs) growth from an Au catalyst with two different kinds of chemical vapor deposition (CVD) methods. In case of thermal CVD (TCVD), high quality single-walled carbon nanotubes (SWNTs) can be grown. On the other hand, only poorly crystallized CNTs are synthesized with plasma CVD (PCVD). Through the parametric investigations, it is found that the hydrogen gas...

The feasibility of using carbon nanotube (CNT) bundles as the fillers of through silicon vias (TSVs) has been demonstrated. CNT bundles are synthesized directly inside TSVs by thermal chemical vapor deposition (TCVD). The growth of CNTs in vias is found to be highly dependent on the geometric dimensions and arrangement patterns of the vias at atmospheric pressure. The CNT-Si structure is planar...