Abstract
X-ray photoelectron spectroscopy, spectroscopic ellipsometry, Fourier transform infrared and room temperature photoluminescence spectroscopy has been used to investigate the chemical, optical, vibrational and luminescent properties of Plasma Enhanced Chemical Vapor Deposited SiOxN y/H (0.17≤x≤0.96; 0.07≤y≤0.27), hydrogenated silicon-rich oxynitride (SRON). The linear dependence of the refractive index of the SRON films on the O/Si ratio was established. The photoluminescence from the SRON films were attributed to the embedded amorphous silicon clusters in the films. The dependence of luminescence maximum values on the O/Si and O/N ratios has been explored. We postulate that at O/Si ratio of 0.18 and an O/N ratio of 2.0 (SiO0.18N0.09) the film underwent a transformation from silicon-rich oxynitride to a-Si/H film with oxygen and nitrogen impurities.
Original language | American English |
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Pages (from-to) | 89-97 |
Number of pages | 9 |
Journal | Thin Solid Films |
Volume | 473 |
Issue number | 1 |
DOIs | |
State | Published - 2005 |
NREL Publication Number
- NREL/JA-520-37873
Keywords
- Ellipsometry
- Photoluminescence
- Silicon-rich silicon oxynitride
- Thin film
- XPS