Sector: Advanced Materials & Manufacturing
Carbon Nanotubes as Machine Elements – A Critical Assessment
Gears, Bearings, Springs, Beams etc. are some of the commonly used machine elements used build machines and mechanical systems. Carbon nanotube can be used as these machine tool elements when building nano-machines or nanomechanical systems [...]
Directed Self-Assembly of Virus-Based Hybrid Nanostructures
Application of biomolecules in self-assembly has an advantage to produce functional building-block for bottom-up approach in nanofabrication. Well known unenveloped viruses such as poliovirus (PV) and tobacco mosaic virus (TMV) were used in our self-assembled [...]
Single wall Carbon Nanotube Optical Actuators: Towards Optical Artificial Muscles
The direct conversion of electrical energy to mechanical energy has been realized by various types of actuation technologies. But the direct conversion of optical energy to mechanical energy is rarely touched to date. Here we [...]
Application of Encapsulated PECVED-grown Carbon Nano-Structure Field-Emission Devices in Nanolithography
Koohsorkhi J., Adbi Y., Mohajerzadeh S., Derakhshandeh J., Hosseinzadegan H., Khakifirooz A., Robertson M.D., University of Tehran, IR
We report a novel technique for submicron and nanolithography using vertically grown nickel seeded carbon nano-structures (CNS) on silicon substrates. The field emission characteristic of carbon nano-tubes is utilized to create nano-scale features. The structure [...]
Molecular Dynamics Study of Electromechanical Nanotube Random Access Memory
In this work, an electromechanical nanotube random access memory (NRAM) device based on carbon nanotube (CNT) shown in Fig. 1 was investigated using atomistic simulations. The interaction between the CNT-lever and the drain electrode or [...]
Counting and Controlling Point Defects in Carbon Nanotube Electronic Circuits
As with any disruptive technology in its early stages, nanoelectronics faces major scientific and technological challenges. As initial investigations of carbon nanotube circuits mature, attention can be turned to issues of reliability and reproducibility. This [...]
An Innovative Ignition Method using SWCNTs and a Camera Flash
It was reported in the literature that as-produced single-walled carbon nanotubes (SWCNTs) ignited when accidentally subjected to a common photographic flash at a close range. This effect was observed for dry and “fluffy” SWCNTs but [...]
Computing Encapsulation of Non-metallic Molecules: N2@C60
Recent observation of N2@C60 is supported computationally. The geometry is optimized at the B3LYP/3-21G and PW91/3-21G levels. The lowest-energy structure has the N2 unit oriented towards a pair of parallel pentagons so that the complex [...]
The Structure and Properties of ta-C Film with Dispersion of Incident Beam Energy
Lee K-R, Lee S-C, Lee S-H., Kim T.-Y., Lee K-R, Lee S-C, Lee S-H., Chung Y-C, Brenner D.W., Lee K-R, Lee S-C, Lee S-H., Korea Institute of Science and Technology, KR
We investigated the structural properties of ta-C film as a function of the dispersion in the incident kinetic energy. The ta-C films were produced on a diamond (100) surface by the bombardment of 3, 000 [...]