Electroluminescence in thin-film CaS:Ce

We report a double insulated CaS:Ce thin-film electroluminescent (EL) device which emits a bright green EL due to Ce3+ luminescent centers, being characteristic of parity allowed 5d–4f transitions. A brightness level of 500 cd/m2 and emission efficiency of 0.11 lm/W have been obtained under 5-kHz si...

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Bibliographic Details
Published in:Applied physics letters 1984-11, Vol.45 (9), p.960-961
Main Authors: SHANDER, V, TANAKA, S, SHIIKI, M, DEGUCHI, H, KOBAYASHI, H, SASAKURA, H
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other luminescence and radiative recombination
Physics
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Summary:We report a double insulated CaS:Ce thin-film electroluminescent (EL) device which emits a bright green EL due to Ce3+ luminescent centers, being characteristic of parity allowed 5d–4f transitions. A brightness level of 500 cd/m2 and emission efficiency of 0.11 lm/W have been obtained under 5-kHz sinusoidal voltage excitation. The CaS:Ce thin film has been fabricated by coevaporation of CaS and sulfur.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.95457