POLISH ACADEMY of SCIENCES
TECHNICAL SCIENCES
Disasters, micro and nanomechanics
| BULLETIN
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POLISH ACADEMY of SCIENCES TECHNICAL SCIENCES |
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| Volume
57, Issue 1, March 2009
Disasters, micro and nanomechanics |
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| Issue Index | Authors Index | Scope Index | Web Info | |
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| Aims&Scope, Subscription | Editors | Authors' guide | to read PDF files | mirror: http://fluid.ippt.gov.pl/~bulletin/ |
| pp 103 - 116 |
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Insight into performance of quantum dot infrared photodetectors |
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| P. MARTYNIUK and A. ROGALSKI |
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In the paper, an algorithm for theoretical evaluation of dark and illumination characteristics of quantum dot infrared photodetectors
(QDIPs) is presented. The developed algorithm is based on a model previously published by Ryzhii and co-workers. In our considerations
it is assumed that both thermionic emission and field-assisted tunnelling mechanisms determine the dark current of quantum dot detectors.
The model permits to calculate the dark current, current gain, average number of electrons in quantum dots, photocurrent, and detector
responsivity as a function of the structural parameters. Moreover, it explains some features of QDIP characteristics. In several cases, the theoretical predictions are compared with experimental data. Good agreement between both kinds of data has been obtained. |
| Key words: |
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QDIPs, dark current, current gain, responsivity, detectivity. |
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| Aims&Scope, Subscription | Editors | Authors' guide | to read PDF files |
| Copyright
® Bulletin of the Polish Academy of Sciences: Technical Sciences
12 March 2009 |
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