Piezoemission Study of CdS:Te

✍ Scribed by O. Goede; F. Fink

• Book ID: 104543855
• Publisher: John Wiley and Sons
• Year: 1973
• Tongue: English
• Weight: 486 KB
• Volume: 55
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/pssb.2220550126

✦ Synopsis

Abstract

The emission band of the isoelectronic impurity Te in CdS is investigated with static uniaxial stress, σ, applied to the crystal. It is suggested that the bandshape is due to strong electron‐LA‐phonon interaction, the corresponding coupling constant and the effective phonon energy are determined. The measured peak shifts and stress‐induced polarization of the emission band for σ ‖ c and the band splitting for σ ⟂ c are interpreted on the basis of first order perturbation theory. The symmetry group of the defect and the irreducible representations of the electronic states involved in the optical transition are obtained and confirm the bound exciton model proposed in [5].