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Photocurrent induced by intersubband transition in a type II and broken-gap quantum well system

Wei, XF; Xu, Wen; Zeng, Z.; Zhang, Chao


We demonstrate theoretically that when an InAs/GaSb based type II and broken-gap quantum well is subjected to a light field, conductance can be observed along the growth direction due to charge transfer between electron and hole layers. A sharp peak can be observed in conductance within sub-THz bandwidth. The peak shifts to the lower frequency (red-shift) with increasing temperature. Our results indicate that InAs/GaSb based quantum well systems are of potential to be applied as sub-THz...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Physica Status Solidi C
DOI: 10.1002/pssc.200673347


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