Abstract
The present status of monocrystalline cathodoluminescent garnet layers is reviewed in this paper. After a short historical introduction to transparent screens, the physical properties of cathodoluminescent materials are briefly described. The preparation of the monocrystalline garnet layers by liquid phase epitaxy is described together with some factors that influence their luminescence efficiency such as growth temperature, flux composition and activator concentration. The factors that influence the colour of the luminescence are considered especially for Ce 3+- activated Y 3Al 5O 12. Other methods used to prepare garnet epilayers are discussed briefly together with their merits. Finally the advances made in understanding the luminescence process from experiments using these cathodoluminescent garnet screens are outlined. Some of the new applications using these monocrystalline epilayers are also presented.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have