Optical and Electronic Transport Properties of Luminescent Semiconductors, Amorphous Materials and Metastable Solids.
Final rept. 1 Mar 73-30 Sep 75 and 7 Nov 75-6 Nov 78,
DELAWARE UNIV NEWARK DEPT OF PHYSICS
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Experimental and theoretical studies are included. The photoelectric threshold of lead azide and of amorphous ice and the electron affinity of lead azide were measured. Ammonium nitrate single crystals were grown and their polarized Raman spectra measured. The temperature dependences of zero-phonon pair spectra and their phonon replicas in gallium phosphide were measured. Line widths were explained by coupling with acoustical phonons and non-radiative de-excitation attributed to thermal ionizations of electron and positive hole.
- Solid State Physics