This is a QR code. A QR Code is a 2-dimensional barcode, which has encoded in it a URL (web address), text, or other information. It can be read by a QR code scanner, including QR scanner smartphone apps. Once you have an app installed on your smartphone, open the app and hold your phones camera over a QR code to read it. Most QR codes youll come across have a URL encoded, so chances are when you read the QR code it will take you to a web page.
Reviewed by members of Editorial board for inclusion in MERLOT.
Click to get more information on the MERLOT Editors' Choice Award in a new window.
Click to get more information on the MERLOT Classics Award in a new window.
Click to get more information on the MERLOT JOLT Award in a new window.
Search all MERLOT
Click here to go to your profile
Click to expand login or register menu
Select to go to your workspace
Click here to go to your Dashboard Report
Click here to go to your Content Builder
Click here to log out
Please give at least one keyword of at least three characters for the search to work with. The more keywords you give, the better the search will work for you.
select OK to launch help window
You are now going to MERLOT Help. It will open in a new window
For optimal performance of MERLOT functionality, use IE 9 or higher, or Safari on mobile devices
Recent demonstrations of high performance carbon nanotube field-effect transistors (CNFETs) highlight their potential for a future nanotube-based electronics. Besides being just a nanometer in diameter, carbon nanotubes offer intrinsic advantages if compared with silicon that are responsible for their outstanding properties. Their...
Recent demonstrations of high performance carbon nanotube field-effect transistors (CNFETs) highlight their potential for a future nanotube-based electronics. Besides being just a nanometer in diameter, carbon nanotubes offer intrinsic advantages if compared with silicon that are responsible for their outstanding properties. Their one-dimensional character is advantageous for a low scattering probability and consequently a high on-current in a transistor device. Electrons and holes behave similarly in CNs, enabling a complementary metal-oxide semiconductor (CMOS) like technology with n-type and p-type transistors. Since chemical bonds in case of carbon nanotubes are completely satisfied, problems with dangling bonds, as at any silicon surface, do not exist. This implies that carbon nanotubes can be more easily combined with various gate dielectrics, e.g. high-k dielectrics for an improved gate control. And last, the fact that metallic as well as semiconducting carbon nanotubes can be fabricated may lead to an all nanotube-based electronics with metallic tubes acting as interconnects and semiconducting tubes being used as active device regions.
All of the above aspects of nanotubes have been experimentally verified. Investigating the physics of scaled CNFETs however revealed also a number of other - rather unexpected - properties of nanotube-based devices. The most important and far-reaching observation recently made is that CNFETs are indeed Schottky barrier devices. This has important implications for their scaling behavior as well as their performance limits. In my presentation I will focus in particular on this aspect of carbon nanotube transistors and discuss a number of our most recent experimental data and simulations.