Open AccessThe effect of distribution of holes in the momentum-space on the photoresponse of p-type quantum well infrared photodetector
Author(s) -
Xiaoguo Zhou,
Xiaoshuang Chen,
Zhen Hong-Lou,
Lu Wei
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.4247
Subject(s) - photodetector , photocurrent , quantum well infrared photodetector , momentum (technical analysis) , position and momentum space , infrared , physics , optoelectronics , space (punctuation) , quantum well , doping , condensed matter physics , materials science , optics , quantum mechanics , laser , economics , linguistics , philosophy , finance
The electronic structure and photoresponse of p-type quantum well infrared photodetector (QWIP) are calculated by self-consistent method. The effect of distribution of holes in the momentum-space on the photoresponse of the device is studied. The calculation results show that the contribution of holes to the photocurrent depends on the distribution of holes in the momentum-space, so the density of holes and the temperature influence the photoresponse of the p-type QWIP. The theoretical results agree well in the change of photoresponse of device with doping concentration and temperature in the experiment.