Title :
Graphene resonant channel transistor
Author :
Yuehang Xu ; Oupeng Li ; Ruimin Xu
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Two kinds of doubly clamped beam graphene resonant channel transistors (RCTs) with local gate configurations, fabricated by direct exfoliation and transfer are presented in this paper. The RCTs are actuated and detected directly by using a vector network analyzer. And the measurement results show that the exfoliation RCT and transfer RCT have resonant frequencies of ~34MHz at 77K and ~88MHz at 300K, respectively. The operation principle of radio frequency (RF) RCT is detailed in this paper. And a compact electrical equivalent circuit model has been given out based on the analysis of electromechanical model of doubly clamped beam and field effect transistor theory. The results show that excellent agreements have been achieved between the experimental results and the simulation results. With the proposed compact model, the RCTs can be useful for developing high sensitivity sensor, or in the perspective of high quality RF filters by using graphene nano-electromechanical systems(NEMS).
Keywords :
equivalent circuits; field effect transistors; graphene; nanoelectromechanical devices; network analysers; C; compact electrical equivalent circuit model; direct exfoliation and transfer; doubly clamped beam; electromechanical model; field effect transistor theory; graphene resonant channel transistor; local gate configurations; temperature 300 K; temperature 77 K; vector network analyzer; Capacitance; Graphene; Integrated circuit modeling; Logic gates; Radio frequency; Resonant frequency; Temperature measurement; Graphene; nano-electromechanical systems(NEMS); radio frequency model; resonant channel transistor(RCT);
Conference_Titel :
Wireless Symposium (IWS), 2013 IEEE International
Conference_Location :
Beijing
DOI :
10.1109/IEEE-IWS.2013.6616764