Singled-walled carbon nanotubes(SWNTs),in the form of ultrathin fi lms of random networks,aligned arrays,or anything in between,provide an unusual type of electronic material that can be integrated into circuits in a ...Singled-walled carbon nanotubes(SWNTs),in the form of ultrathin fi lms of random networks,aligned arrays,or anything in between,provide an unusual type of electronic material that can be integrated into circuits in a conventional,scalable fashion.The electrical,mechanical,and optical properties of such fi lms can,in certain cases,approach the remarkable characteristics of the individual SWNTs,thereby making them attractive for applications in electronics,sensors,and other systems.This review discusses the synthesis and assembly of SWNTs into thin film architectures of various types and provides examples of their use in digital electronic circuits with levels of integration approaching 100 transistors and in analog radio frequency(RF)systems with operating frequencies up to several gigahertz,including transistor radios in which SWNT transistors provide all of the active functionality.The results represent important steps in the development of an SWNT-based electronics technology that could fi nd utility in areas such as fl exible electronics,RF analog devices and others that might complement the capabilities of established systems.展开更多
基金This work was supported by DARPA-funded AFRL-managed Macroelectronics Program Contract FA8650-04-C-7101the National Science Foundation(NSF)through grant NIRT-0403489+2 种基金the U.S.Department of Energy through grant DE-FG02-07ER46471the Frederick Seitz Materials Research Lab and the Center for Microanalysis of Materials in University of Illinois which is funded by U.S.Department of Energy through grant DE-FG02-07ER46453 and DE-FG02-07ER46471the Center for Nanoscale Chemical Electrical Mechanical Manufacturing Systems in University of Illinois which is funded by the NSF through grant DMI-0328162,Motorola Inc.,Intel Corp.,DuPont Corp.,and Northrop Grumman.
文摘Singled-walled carbon nanotubes(SWNTs),in the form of ultrathin fi lms of random networks,aligned arrays,or anything in between,provide an unusual type of electronic material that can be integrated into circuits in a conventional,scalable fashion.The electrical,mechanical,and optical properties of such fi lms can,in certain cases,approach the remarkable characteristics of the individual SWNTs,thereby making them attractive for applications in electronics,sensors,and other systems.This review discusses the synthesis and assembly of SWNTs into thin film architectures of various types and provides examples of their use in digital electronic circuits with levels of integration approaching 100 transistors and in analog radio frequency(RF)systems with operating frequencies up to several gigahertz,including transistor radios in which SWNT transistors provide all of the active functionality.The results represent important steps in the development of an SWNT-based electronics technology that could fi nd utility in areas such as fl exible electronics,RF analog devices and others that might complement the capabilities of established systems.
