Conference proceeding
Development of a new photodetector based on two dimensional hole gas
2007 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, pp 237-240
Oct 2007
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We have previously demonstrated the improved time response performance of the heterostructure metal-semiconductor-metal (HMSM) photodetector, due to the presence of a two-dimensional electron gas (2DEG). However, the time response presents a long tail due to the slow moving holes, which would still be an impediment for high frequency operation. In order to overcome this limitation, we have developed a new photodetector based on a two-dimensional hole gas (2DHG) in which the electric field in the GaAs absorption layer attracts the photogenerated holes to a reservoir of holes thus reducing their transit time. We present the designed structure, fabrication sequence, current-voltage, capacitance- voltage characterizations carried out in the dark and under light. Time response data verifies a distinctive reduction in tail of response as expected.
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Details
- Title
- Development of a new photodetector based on two dimensional hole gas
- Creators
- A Cola - INFN Sezione di LecceF Quaranta - INFN Sezione di LecceA Taurino - INFN Sezione di LecceM Currie - INFN Sezione di LecceE GalloX ZhaoJ SpanierB NabetIEEE
- Publication Details
- 2007 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, pp 237-240
- Conference
- 2007 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference
- Publisher
- IEEE
- Number of pages
- 1
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Electrical and Computer Engineering; Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000256075300054
- Scopus ID
- 2-s2.0-50449083928
- Other Identifier
- 991019168993704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Electrical & Electronic
- Optics
- Physics, Applied