Title :
Quantum efficiency of [111] oriented p-doped quantum well infrared photodetectors
Author :
M. Tadic;Z. Ikonic
Author_Institution :
Fac. of Electr. Eng., Belgrade Univ., Serbia
Abstract :
Orientation dependence of the bound-to-continuum absorption (quantum efficiency) in p-doped semiconductor quantum wells is calculated. As in the [100] direction, the main contribution arises from the transitions between the ground subband and continuum. Due to the larger transition matrix element absorption is 20% higher in the [111] oriented than in the [100] oriented quantum wells, and the peak is slightly shifted towards longer wavelengths.
Keywords :
"Photodetectors","Effective mass","Electromagnetic wave absorption","Infrared detectors","Electrons","Gallium arsenide","Indium phosphide","Optical mixing","Optical coupling","III-V semiconductor materials"
Conference_Titel :
Semiconductor Conference, 1998. CAS ´98 Proceedings. 1998 International
Print_ISBN :
0-7803-4432-4
DOI :
10.1109/SMICND.1998.733804
