Title :
Evaluation of strain gauge factors of graphene ribbon models based on first-principles electronic-state calculations
Author :
Gamil, Mohammed ; Nakamura, Kentaro ; El-Bab, A.M.R.F. ; Tabata, Osamu ; Serry, M. ; El-Moneim, A.A.
Author_Institution :
Mater. Sci. & Eng. Dept., Egypt-Japan Univ. of Sci. & Technol. (E-JUST), Alexandria, Egypt
Abstract :
The present work has simulated the piezoresistivity coefficient in graphene ribbon based on the first-principles electronic-state calculation method. The carrier conductivity along the graphene ribbon models have been calculated using band carrier densities and their corresponding effective masses derived from the one-dimensional band diagram. The longitudinal and transverse gauge factors are large in our calculation, and the zigzag graphene ribbon is a high potential material with high piezoresistivity.
Keywords :
ab initio calculations; carrier density; effective mass; graphene; piezoresistance; strain gauges; C; band carrier density; carrier conductivity; effective masses; first-principles electronic-state calculation method; graphene ribbon models; longhitudinal gauge factors; one-dimensional band diagram; piezoresistivity coefficient; strain gauge factors; transverse gauge factors; zigzag graphene ribbon; Graphene ribbon; first-principles calculation; giant piezoresitivity; low-dimensional semiconductor; micro-electro-mechanical systems (MEMS);
Conference_Titel :
Innovative Engineering Systems (ICIES), 2012 First International Conference on
Conference_Location :
Alexandria
Print_ISBN :
978-1-4673-4440-1
DOI :
10.1109/ICIES.2012.6530844
