Title :
Calculation of current in multiple quantum well structure with variable barrier heights
Author :
Mukherjee, Kasturi ; Das, N.R.
Author_Institution :
Inst. of Radio Phys. & Electron., Univ. of Calcutta, Kolkata, India
Abstract :
In this paper, the current-voltage characteristics of a multiple quantum well structure (MQW) has been studied. The current through the structure has been calculated after obtaining the transmission coefficient using quantum mechanical approach. The effect of barrier height asymmetry on the current density through the structure has been investigated. The results indicate suitable designs to obtain high current density.
Keywords :
conduction bands; current density; electrical conductivity; quantum wells; tunnelling; current-voltage characteristics; multiple quantum well structure; quantum mechanical approach; transmission coefficient; tunneling current density; variable barrier heights; Current density; Electrons; Quantization; Quantum cascade lasers; Quantum computing; Quantum mechanics; Quantum well devices; Tunneling; Voltage; Wave functions; MQW; Propagation matrix; asymmetry; quantum well; transmission coefficient; tunneling current;
Conference_Titel :
Computers and Devices for Communication, 2009. CODEC 2009. 4th International Conference on
Conference_Location :
Kolkata
Print_ISBN :
978-1-4244-5073-2
