Huang, J;
Guo, D;
Chen, W;
Deng, Z;
Bai, Y;
Wu, T;
Chen, Y;
... Chen, B; + view all
(2017)
Sub-monolayer quantum dot quantum cascade mid-infrared photodetector.
Applied Physics Letters
, 111
, Article 251104. 10.1063/1.5011239.
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Abstract
In this work, we demonstrate a sub-monolayer quantum dot quantum cascade photodetector grown on GaAs for photovoltaic mid-infrared photo-detection. The detector shows a normal-incident peak responsivity of 1.90 mA/W at the wavelength of 6.05 μm and a resistance-area product of 1.54 × 108 Ω cm2 at 77 K. The corresponding specific detectivity is 3.22 × 1011 cm·Hz1/2/W.
| Type: | Article |
|---|---|
| Title: | Sub-monolayer quantum dot quantum cascade mid-infrared photodetector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1063/1.5011239 |
| Publisher version: | https://doi.org/10.1063/1.5011239 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Physics, Applied, Physics, Detectors |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10041826 |
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