Journal ArticleDOI
Novel electrical switching behaviour and logic in carbon nanotube Y-junctions
TLDR
This is the first time that switching and logic functionalities have been experimentally demonstrated in Y-junction nanotubes without the need for an external gate, and a class of nanoelectronic architecture and functionality, which extends well beyond conventional field-effect transistor technologies, is now possible.Abstract:
Carbon-nanotube-based electronics offers significant potential as a nanoscale alternative to silicon-based devices for molecular electronics technologies. Here, we show evidence for a dramatic electrical switching behaviour in a Y-junction carbon-nanotube morphology. We observe an abrupt modulation of the current from an on- to an off-state, presumably mediated by defects and the topology of the junction. The mutual interaction of the electron currents in the three branches of the Y-junction is shown to be the basis for a potentially new logic device. This is the first time that such switching and logic functionalities have been experimentally demonstrated in Y-junction nanotubes without the need for an external gate. A class of nanoelectronic architecture and functionality, which extends well beyond conventional field-effect transistor technologies, is now possible.read more
Citations
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Journal ArticleDOI
Toxicity issues in the application of carbon nanotubes to biological systems.
TL;DR: This review analyzes the potential, through possible toxicologic implications, of CNTs in nanomedicine, with data suggesting postexposure regeneration, resistance, and mechanisms of injury in cells, due to C NTs.
Journal ArticleDOI
Direct growth of aligned carbon nanotubes on bulk metals
Saikat Talapatra,Swastik Kar,Sunil K. Pal,Robert Vajtai,Lijie Ci,P. Victor,Manikoth M. Shaijumon,Sumanjeet Kaur,Omkaram Nalamasu,Pulickel M. Ajayan +9 more
TL;DR: The growth of aligned multiwalled CNTs on a metallic alloy, Inconel 600 (Inconel), using vapour-phase catalyst delivery overcomes the substrate limitation for nanotube growth which should assist the development of future CNT-related technologies.
Journal ArticleDOI
Aligned carbon nanotube-polymer hybrid architectures for diverse flexible electronic applications.
Yung Joon Jung,Swastik Kar,Saikat Talapatra,Caterina Soldano,Gunaranjan Viswanathan,Xuesong Li,Zhaoling Yao,Fung Suong Ou,Aditya Avadhanula,R. Vajtai,Seamus A. Curran,Omkaram Nalamasu,Pulickel M. Ajayan +12 more
TL;DR: The fabrication and electrical characterization of a flexible hybrid composite structure using aligned multiwall carbon nanotube arrays in a poly(dimethylsiloxane) (PDMS) matrix is presented, giving rise to extremely flexible conducting structures with unique electromechanical properties.
Journal ArticleDOI
Carbon nanotubes-properties and applications: a review
TL;DR: The carbon nanotube (CNT) represents one of the most unique inventions in the field of nan - otechnology as mentioned in this paper, which makes them useful as fillers in different materials such as polymers, metallic surfaces and ceramics.
Journal ArticleDOI
When Small Is Different: Some Recent Advances in Concepts and Applications of Nanoscale Phenomena
TL;DR: In this article, the authors describe some properties of materials that undergo qualitative, often sudden, changes below a certain size scale and present a general description of these size-dependent properties.
References
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Journal ArticleDOI
Carbon Nanotubes--the Route Toward Applications
TL;DR: Many potential applications have been proposed for carbon nanotubes, including conductive and high-strength composites; energy storage and energy conversion devices; sensors; field emission displays and radiation sources; hydrogen storage media; and nanometer-sized semiconductor devices, probes, and interconnects.
Journal ArticleDOI
Room-temperature transistor based on a single carbon nanotube
TL;DR: In this paper, the fabrication of a three-terminal switching device at the level of a single molecule represents an important step towards molecular electronics and has attracted much interest, particularly because it could lead to new miniaturization strategies in the electronics and computer industry.
Book
Physical properties of carbon nanotubes
TL;DR: In this paper, an introductory textbook for graduate students and researchers from various fields of science who wish to learn about carbon nanotubes is presented, focusing on the basic principles behind the physical properties and giving the background necessary to understand the recent developments.
Journal ArticleDOI
Thermal transport measurements of individual multiwalled nanotubes.
TL;DR: The thermal conductivity and thermoelectric power of a single carbon nanotube were measured using a microfabricated suspended device and shows linear temperature dependence with a value of 80 microV/K at room temperature.
Journal ArticleDOI
Ballistic carbon nanotube field-effect transistors
TL;DR: It is shown that contacting semiconducting single-walled nanotubes by palladium, a noble metal with high work function and good wetting interactions with nanotube, greatly reduces or eliminates the barriers for transport through the valence band of nanot tubes.