✦ LIBER ✦
Size determination of semiconductor nanocrystallites in glasses by low frequency inelastic scattering (LOFIS)
✍ Scribed by B. Champagnon; B. Andrianasolo; E. Duval
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 265 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0921-5107
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✦ Synopsis
Low frequency inelastic scattering (LOFIS) concerns Raman scattering of light below 100 cm-L; in this frequency range the eigenmodes of small crystallites give rise to low frequency lines whose position depends on the crystallite sizes. LOFIS of various CdS,Set_~ semiconductor-doped glasses was analysed and diameters between 2 and 10 nm were obtained. Resonance effects strongly enhanced the longitudinal optical (LO) phonons. The influence of confinement on the scattering of light by LO phonons is discussed.