Academic Journal
Multi-color Photoresponse Based on Interband and Intersubband Transitions in InAs and InGaAs Quantum Dot Photodetectors
| العنوان: | Multi-color Photoresponse Based on Interband and Intersubband Transitions in InAs and InGaAs Quantum Dot Photodetectors |
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| المؤلفون: | Passmore, Brandon Scott, Wu, Jiang, Decuir, Eric A., Manasreh, Omar, Lytvyn, Peter M., Kunets, Vasyl P., Salamo, Greg J. |
| المصدر: | MRS Proceedings ; volume 1055 ; ISSN 0272-9172 1946-4274 |
| بيانات النشر: | Springer Science and Business Media LLC |
| سنة النشر: | 2007 |
| الوصف: | The interband and intersubband transitions in self-assembled InAs and In 0.3 Ga 0.7 As quantum dots grown by molecular beam epitaxy have been investigated for their use in visible, near-, and mid-infrared detection applications. Devices based on InAs quantum dots embedded in an In x Ga 1−x As (0 to 0.3) graded well and In 0.3 Ga 0.7 As quantum dots were fabricated in order to measure the temperature dependent (77 – 300 K) photoresponse. The dark current was measured in the temperature range of 77 to 300 K for the devices. Room temperature photoresponse ranging between 0.6 to 1.3 μm was observed for the InAs and In 0.3 Ga 0.7 As quantum dot photodetectors. Furthermore, a dual band photoresponse in the visible, near-, and mid-infrared spectral regions for both devices was observed at 77 K. Using a self-consistent solution of Schrödinger-Poisson equations, the peak position energies of the interband and intersubband transitions in the two multi-color quantum dot infrared photodetector structures was calculated. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1557/proc-1055-gg02-02 |
| الاتاحة: | http://dx.doi.org/10.1557/proc-1055-gg02-02 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1946427400068317 |
| Rights: | https://www.cambridge.org/core/terms |
| رقم الانضمام: | edsbas.88C6DAD1 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1557/proc-1055-gg02-02 |
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