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Aging behavior of porous silicon electrochemically etched with the aid of Zn
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- Authors
- Issue Date
- 2001-11-01
- Publisher
- American Institute of Physics
- Citation
- J. Appl. Phys. 90, 4485 (2001)
- Keywords
- PHOTOLUMINESCENCE ; ORIGIN ; BLUE
- Abstract
- Aging behavior of red, green, and blue photoluminescence from porous silicon formed by electrochemical etching aided with zinc has been studied over a 3 month time span. Time-resolved photoluminescence spectra and decay dynamics have revealed that there are two radiating states in Zn-aided porous silicon. One is the quantum confinement and the other is the oxygen-related defect. For green emission, the wavelength shifts from 520 to 420 nm and its photoluminescence spectra and decay behavior become very similar to those of blue emission.
- ISSN
- 0021-8979
- Language
- English
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