Title :
Carbon nanotube FETs decorated by gold nanoparticles: Electrical properties and mechanism
Author :
Wei, Qinqin ; Guo, Ao ; Chai, Yang ; Jin, Zhong ; Li, Yan ; Shi, Zujin ; Chan, Philip C.H. ; Fu, Yunyi ; Huang, Ru ; Zhang, Xing
Author_Institution :
Dept. of Microelectron., Peking Univ., Beijing, China
Abstract :
The electrical transport behavior of carbon nanotube field-effect transistors (CNT-FETs) decorated with gold nanoparticles (NPs) has been investigated. After decoration with Au NPs, the Ion/Ioff ratios of nanotube FETs decrease and some of the p-type devices even change into metallic ones. The Au NPs decrease the contact resistances between the CNTs and metal electrodes, and accordingly increase the on-state electric currents of the CNT-FETs. The possible mechanisms for the effects of NPs on electrical transport properties of the CNTs have been analyzed qualitatively. Our investigations are closely linked with some promising applications of carbon nanotube hybrid materials in nanoelectronics.
Keywords :
carbon nanotubes; contact resistance; field effect transistors; gold; nanoparticles; nanotube devices; CNT-FET; carbon nanotube FET; contact resistances; electrical transport properties; gold nanoparticles; metal electrodes; on-state electric currents; p-type devices; Carbon nanotubes; Electrodes; FETs; Gold; Logic gates; Nanoparticles;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-5797-7
DOI :
10.1109/ICSICT.2010.5667626
