Abstract
We report the growth by low-pressure metal-organic chemical vapor deposition, fabrication, and characterization of ten-layer In0.5 Ga0.5 As/GaAs quantum dot infrared photodetectors. Normal incidence photoresponse of the detector was obtained at 5.9 μm. The 77-K peak responsivit was 5.6 mA/W with the detectivity D* of 1.2 × 109 cm · Hz1/2/W at the bias of 0.4 V.
Original language | English |
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Pages (from-to) | 628-630 |
Number of pages | 3 |
Journal | IEEE Electron Device Letters |
Volume | 26 |
Issue number | 9 |
DOIs | |
Publication status | Published - Sept 2005 |