Observation of Non-Gaussian and Generation-Recombination Noise in n-Type GaAs/AlGaAs Multiple Quantum Wells
- Title
- Observation of Non-Gaussian and Generation-Recombination Noise in n-Type GaAs/AlGaAs Multiple Quantum Wells
- Author
- 정희준
- Keywords
- QWIP; Random telegraph signal; Generation-recombination; Low-frequency noise
- Issue Date
- 2009-04
- Publisher
- 한국물리학회
- Citation
- Journal of the Korean Physical Society, v. 54, NO. 4, Page. 1599-1602
- Abstract
- The time trace and the noise spectrum of the dark current are measured to probe the non-Gaussian properties and the generation-recombination noise in n-type GaAs/AlGaAs quantum well infrared photodetectors. We observed that time-dependent random telegraph signals showed a non-Gaussian two-level random fluctuation of the current amplitude arising from trapping and detrapping of carriers by a quantum well. A change in the carrier lifetime, which corresponds to capture in a well, is also observed at low bias by measuring the low-frequency noise spectrum. We investigated a relation between the two-level random fluctuation and the carrier lifetime or the capture probability.
- URI
- https://www.jkps.or.kr/journal/view.html?volume=54&number=4&spage=1599&year=2009https://repository.hanyang.ac.kr/handle/20.500.11754/184303
- ISSN
- 0374-4884;1976-8524
- DOI
- 10.3938/jkps.54.1599
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > APPLIED PHYSICS(응용물리학과) > Articles
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