Title :
Comparative Study of Two-Valley Models for Space Charge Wave Propagation in GaAs Semiconductor Films
Author :
Grimalsky, Volodymyr ; García-B, Abel ; Gutirez-D, E.
Author_Institution :
Electron. Dept., INAOE, Puebla, Mexico
Abstract :
A full comparative study of three models to describe the transport of carrier in GaAs is presented. these models were done by Tomizawa, Shur, and Rrodrigues, using the balance equations, where two-valley model in which only the γ-valley and the l-valleys were taken into account. these models have been used to describe the space charge wave propagation in thin n-GaAs films. it has been demonstrated that sometimes the models of Shur and Rodrigues may lead to incorrect results. Essential peculiarities of the Tomizawa’s model has been put forward.
Keywords :
gallium arsenide; semiconductor thin films; space charge waves; transport processes; wave propagation; GaAs semiconductor films; Rodrigues model; Shur model; Tomizawa model; balance equations; carrier transport; space charge wave propagation; two-valley models; Astrophysics; Charge carrier density; Electrons; Equations; Gallium arsenide; Optical films; Optical propagation; Semiconductor films; Semiconductor thin films; Space charge;
Conference_Titel :
Electronics, Communications and Computers, 2005. CONIELECOMP 2005. Proceedings. 15th International Conference on
Print_ISBN :
0-7695-2283-1
DOI :
10.1109/CONIEL.2005.30
