Abstract
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 photovoltaic devices.
Original language | English |
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Pages (from-to) | 544-546 |
Number of pages | 3 |
Journal | Physica Status Solidi (C) Current Topics in Solid State Physics |
Volume | 4 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2007 |
Event | International Conference on Superlattices, Nano-structures and Nano-devices, ICSNN-2006 - Istanbul, Turkey Duration: 30 Jul 2006 → 4 Aug 2006 |