Abstract
We report on the device parameters of In0.5Ga 0.5As/GaAs/Al0.2Ga0.8As quantum-dots- in-a-well infrared photodetectors annealed at various temperatures from 700 to 850 °C. The temperature dependent dark current-voltage characteristics are found to have a very weak dependence on the annealing temperature, revealing some interesting properties of the dark current mechanisms.
Original language | English |
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Article number | 115103 |
Journal | Journal Physics D: Applied Physics |
Volume | 42 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2009 |