Long wavelength infrared negative luminescent devices with strong Auger suppression
Autor: | Neil Gordon, James R. Lindle, M. K. Ashby, Jean Giess, Jerry R. Meyer, L. Haworth, Timothy Ashley, Geoffrey R. Nash, William W. Bewley |
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Rok vydání: | 2003 |
Předmět: | |
Zdroj: | Journal of Applied Physics. 94:7300-7304 |
ISSN: | 1089-7550 0021-8979 |
DOI: | 10.1063/1.1625094 |
Popis: | We have investigated the negative luminescent properties of HgCdTe photodiodes having peak emission at a wavelength of 7.6 μm, as a function of temperature and applied bias. Under reverse bias at room temperature, intrinsic Auger processes are almost fully suppressed. The internal negative luminescence efficiency of ≈85% is nearly independent of temperature in the 240–300 K range, and at 296 K corresponds to an apparent temperature reduction of 43 K. The small currents needed to drive these diodes (as little as 0.7 A/cm2 at 296 K), together with their long-wavelength luminescence, make them suitable for a range of device applications. |
Databáze: | OpenAIRE |
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