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Proceedings Paper

Dark current study of quantum dot infrared photodetector
Author(s): Yong Hoon Kang; Jinsung Park; Uk Hyun Lee; Songcheol Hong
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Paper Abstract

The distribution of bound state energies of self-assembled quantum dots in quantum dot infrared photodetector structure is addressed using its temperature-dependent dark currents. The temperature-dependent dark currents have been fitted by the modified Arrhenius equation, which includes the distribution of activation energies. The fitting allows us to find the standard deviation and the average activation energy. It is found that the peak of photocurrent spectra, which correspond to intersubband transition energy, is coincided with the average of the activation energies. This was never achieved with the conventional Arrhenius equation.

Paper Details

Date Published: 1 July 2003
PDF: 7 pages
Proc. SPIE 4999, Quantum Sensing: Evolution and Revolution from Past to Future, (1 July 2003); doi: 10.1117/12.479550
Show Author Affiliations
Yong Hoon Kang, Korea Advanced Institute of Science and Technology (South Korea)
Jinsung Park, Korea Advanced Institute of Science and Technology (South Korea)
Uk Hyun Lee, Korea Research Institute of Standards and Science (South Korea)
Songcheol Hong, Korea Advanced Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 4999:
Quantum Sensing: Evolution and Revolution from Past to Future
Manijeh Razeghi; Gail J. Brown, Editor(s)

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