a-Si:Ha-SiNx:H superlattices: Confinement or contamination
โ Scribed by S. Kalem
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 305 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0749-6036
No coin nor oath required. For personal study only.
โฆ Synopsis
Size effects in a-Si:H/a-SiN,:H (x = 1, 13) superlattices have been studied by photothermal deflection spectroscopy and infrared luminescence measurements.
It is found that despite of the explanation of the changes in the band gap by a one dimensional quantum well model, the variations in the optical parameters may instead be due to the nitrogen contamination of the confined a-Si:H layer.
๐ SIMILAR VOLUMES
Surface Rayleigh acoustic waves and related elastic properties of quasiperiodic and periodic modulated a- \(\mathrm{Si}: \mathrm{H} / \mathrm{a}-\mathrm{SiN}_{x}: \mathrm{H}\) superlattices have been studied by means of a light-scattering technique. Changes in the phase velocity of the surface Rayle
By using wavelength modulated absorption (WMA), optical transitions between subbands are revealed in \(\mathrm{a}-\mathrm{Si}: \mathrm{H} / \mathrm{a}-\mathrm{SiN}_{\mathrm{x}}: \mathrm{H}\) superlattices for the well-layer thicknesses less than \(50 \AA\). The threshold energies of the distinct ste