Growth of bulk zinc chalcogenide single crystals from the vapour phase and their use for laser screens of projection colour television
✍ Scribed by Dr. B. M. Bulakh; Dr. V. I. Kozlovsky; N. K. Moiseeva; Dr. A. S. Nasibov; Dr. G. S. Pekar; P. V. Reznikov
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 536 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0232-1300
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Results on ZnSe, ZnSe~x~S~1−x~ and ZnS crystal growing from the vapour phase up to 7.5 cm^3^ in volume are described. Crystals were grown on sapphire, ZnS, ZnSe~x~S~1−x~ and quartz glass substrates without a contact of the growing crystal with a growth ampoule and using the molten tin as a heating medium. Large high‐purity crystals with a density of etch pits of 10^3^ cm^−2^ were obtained They exhibited an effective exciton luminescence and rather high radiation efficiency (30 ± 10% for ZnSe at T = 77 K). This made it possible to use these crystals for fabricating laser screens for a cathode ray tube. The main laser parameters obtained on a ZnSe screen at T = 80 and 300 K using a 75 keV electron beam excitation are presented. The light power output reached 0.8 W at T = 80 K; this allowed to obtain a 10 cd · m^−2^ TV image of 1.5 × 2 m^2^ in area.