High brightness red electroluminescence in CaS:Eu thin films
- 23 June 1986
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 48 (25) , 1730-1732
- https://doi.org/10.1063/1.96817
Abstract
The crystallinity and luminescent property were studied on evaporated CaS:Eu thin films. The orientation of the film strongly depends on substrate temperature. Distinct orientation was not observed in films deposited below 600 °C. Above 600 °C, the films tend to have a (111) orientation. The red emitting electroluminescent device with CaS:Eu active layer prepared at 680 °C which is strongly oriented to the [111] direction shows the brightness of 180 cd/m2 under 1 kHz alternate excitation.Keywords
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