Red luminescence in phosphorous-doped chemically vapor deposited diamond
TLDR
In this article, a red form of band-A luminescence, related to electron-hole recombination at substitutional phosphorous and a phosphorus-vacancy complex, is revealed, in the cathodo luminosity spectra of homoepitaxial and polycrystalline films.Abstract:
Luminescence studies have been performed on phosphorous-doped diamond films deposited by hot-filament chemical vapor deposition. A broad luminescence band, centered around 1.9 eV is revealed, in the cathodo luminescence spectra of homoepitaxial and polycrystalline films, whereas the blue band-A luminescence, which is characteristic for undoped diamond, is quenched in the presence of phosphorus. The 1.9 eV luminescence band could not be excited by Ar+ laser light (2.54 eV) and did not show a zero-phonon line in the spectrum. Therefore, we suggest that this band is a red form of band-A luminescence, related to electron-hole recombination at substitutional phosphorous and a phosphorus-vacancy complex.read more
Citations
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References
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Nitrogen and potential n-type dopants in diamond
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Epitaxial Growth of High Quality Diamond Film by the Microwave Plasma-Assisted Chemical-Vapor-Deposition Method
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Alan T. Collins,M Kamo,Y Sato +2 more
TL;DR: In this paper, the authors analyzed the cathodoluminescence spectra from single-crystal diamonds grown by the decomposition of a methane-hydrogen mixture in a microwave plasma.
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