Vedas and Science

What is a carbon nanotube? It's a tube made out of graphite molecules. A sheet of graphite molecules looks like a layer of hexagons. If you were to roll that sheet into a tube, you'd end up with a carbon nanotube. Nanotubes exhibit different qualities depending upon the direction you choose to roll the tube. Scientists say that if you roll it correctly, you'd end up with a material several times stronger and lighter than steel. Other uses for nanotubes include everything from building semiconductors to developing a suit that theoretically would allow you to climb up the side of a building like Spider-Man.

( Nanowerk News ) Advances in semiconductor device during last few decades enable us to improve the electronic device performance by minimizing the device dimension. However, further development of these systems encounters scientific and technological limits and forces us to explore better alternatives. Low-dimensional carbon allotropes such as carbon nanotube and graphene exhibit superior electronic, optoelectronic, and mechanical properties compared to the conventional semiconductors. A Feature Article in Advanced Functional Materials ( "Graphene Versus Carbon Nanotubes in Electronic Devices" ) reviews the recent progresses of carbon nanotubes and graphene researches. The purpose of this article is to compare the characteristics of both graphene and carbon nanotubes in electronics, i.e., transparent conducting films and thin-film transistors, and furthermore to provide intuition