Carbon Nano Structures & Devices – Page 23

Fabrication and characterization of optoelectric device using CdSe nanocrystal quantum dots/single-walled carbon nanotubes heterostructure

Shim H-C, Jeong S., Kim S., Han C-S, Korea Advanced Institue of Science and Technology (KAIST), KR

The ability to transport extracted carriers from the development of NQDs (nanocrystal quantum dots) based optoelectronic sensors have drawn considerable attention due to NQDs’ unique optical properties. Coupling of NQDs to 1-D nanostructures such as [...]

Tuning the electronic and chemical surface properties of graphane combining alkali deposition and low-energy ion irradiation

Heim B., Allain J.P., Zemlyanov D., Taylor C.N., El-Atwani O., Purdue University, US

The presence of defects in graphene due to thin-film processing can lead to alterations of its electronic properties. Tuning of graphene’s electronic properties could be achieved through control of thermal deposition of alkaline dopants (e.g. [...]

Electron irradiation induced stuructural changes in nickel nanorods encapsulated in carbon nanotubes

Kulshrestha N., Hazra K.S., Roy S., Bajpai R., Mohapatra D.R., Misra D.S., Indian Institute of Technology - Bombay, IN

Nickel nanorods encapsulated inside the multiwalled carbon nanotubes were prepared using MPCVD technique. As prepared tubes encapsulating nickel were investigated by SEM, XRD and HRTEM. HRTEM study of these tubes exhibits long, good crystalline nickel [...]

Quantum Electrodynamics of Nanosystems

Masood S.S., Univ. of Houston Clear Lake, US

Quantum description of mulitiparticle nano-systems was studied in a hot and dense electromagnetic media. We use renormalization techniques of quantum field theory to show that the electromagnetic properties like electric permittivity and magnetic permeability depend [...]

Fabrication of Nanoporous Ultrananocrystalline Diamond Membranes

Makarova O.V., Divan R., Moldovan N., Tang C.-M., Creatv MicroTech, Inc, US

Nanoporous membranes engineered to mimic natural filtration systems can be used in smart implantable drug delivery systems, bioartificial organs, and other novel nano-enabled medical devices. The ultrananocrystalline diamond (UNCD) porous membranes will open new opportunities [...]

Is Aluminum Suitable Buffer Layer for Growth of Carbon Nanowalls?

Alizadeh Eslami P., Ghoranneviss M., Nasiri Laheghi S., Islamic Azad University, IR

Self-assembled carbon nanostructures like carbon nanotubes (CNTs) and carbon nanowalls (CNWs) have attracted much attention for several applications, such as gas storage, membranes for electrochemical energy storage, and field emitters. Recently, Wu et al. [1] [...]

Large area graphene sheets synthesized on a bi-metallic catalyst system

Dervishi E., Li Z., Shyaka J., Watanabe F., Biswas A., Umwungeri J.L., Courte A., Biris A.R., Biris A.S., Biris A.R., Biris A.S., University of Arkansas at Little Rock, US

Few layer graphene sheets were synthesized on a bimetallic catalyst system utilizing acetylene as the hydrocarbon source. This is a low-cost method for large scale production of graphene via radio-frequency chemical vapor deposition. The as-produced [...]

Electric-Arc Plasma Instalation and method for Preparing Nanodispersed Carbon Structures

Vissokov G.P., Garlanov D.T., Zaharieva K.L., Rakovski S.K., Institute of Catalysis, BG

An electric-arc plasma instalation operated in the hidden anode arrngement is constructed and used for the pereparation of carbon nanostructures. A device and a method were developed to produce nanomaterials in the form of nano-particles [...]

Direct growth of carbon nanotubes on a plastic substrate

Carnahan D., Esposito D., Izrailit I., Vasenkov A.V., CFD Resarch Corporation, US

The deficiency of carbon nanotube (CNT) growth on temperature-sensitive substrates such as plastic tapes impedes the further progress in CNT electronics. We report a novel method that is able to offer the solution by selectively [...]

Catalyst-Free Synthesis of Carbon Nanotubes with Low-Intensity Lasers

Krishna V., Koopman B., Moudgil B., University of Florida, US

We have discovered a novel method of synthesizing carbon nanostructures such as single-wall carbon nanotubes (SWNTs), multi-wall carbon nanotubes (MWNTs) and carbon onions. The advantages of our method include, catalyst-free synthesis of CNTs at room [...]