title: Modularized construction of general integrated circuits on individual carbon nanotubes.
abstract: While constructing general integrated circuits (ICs) with field-effect transistors (FETs) built on individual CNTs is among few viable ways to build ICs with small dimension and high performance that can be compared with that of state-of-the-art Si based ICs, this has not been demonstrated owing to the absence of valid and well-tolerant fabrication method. Here we demonstrate a modularized method for constructing general ICs on individual CNTs with different electric properties. A pass-transistor-logic style 8-transistor (8-T) unit is built, demonstrated as a multifunctional function generator with good tolerance to inhomogeneity in the CNTs used and used as a building block for constructing general ICs. As an example, an 8-bits BUS system that is widely used to transfer data between different systems in a computer is constructed. This is the most complicated IC fabricated on individual CNTs to date, containing 46 FETs built on six individual semiconducting CNTs. The 8-T unit provides a good basis for constructing complex ICs to explore the potential and limits of CNT ICs given the current imperfection in available CNT materials and may also be developed into a universal and efficient way for constructing general ICs on ideal CNT materials in the future.
authors.affiliation: Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University , Beijing 100871, China.
authors.forename: Tian
authors.initials: T
authors.lastname: Pei
authors.forename: Panpan
authors.initials: P
authors.lastname: Zhang
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Zhang
authors.forename: Chenguang
authors.initials: C
authors.lastname: Qiu
authors.forename: Shibo
authors.initials: S
authors.lastname: Liang
authors.forename: Yingjun
authors.initials: Y
authors.lastname: Yang
authors.forename: Sheng
authors.initials: S
authors.lastname: Wang
authors.forename: Lian-Mao
authors.initials: LM
authors.lastname: Peng