EGAS41 - Swansea University

41 st EGAS CP 20 Gdańsk 2009
Influence of the UV laser light on the brightness characteristics
of AC electroluminescence structures
L. Yurukova 1,∗ , Kr. Kolenzov 1 , E. Dimova 1,∗ , G. Malcheva 1 , D. Zhechev 1 ,
N. Darmenov 2 , P. Popov 3
1 Institute Of Solid State Physics - BAS, 72 Tzarigradsko chaussee Blvd., 1784 Sofia, Bulgaria
2 Institute of Nuclear Research and Nuclear Energetics - BAS, 72 Tzarigradsko chaussee Blvd.,
1784 Sofia, Bulgaria
3 Technical University, 2 Studentska Street, 9010 Varna, Bulgaria
∗ Corresponding author: yourukova lily@abv.bg
The alternating current electrolumiscent (AC EL) displays are multilayer structures with
a wide application in color information representation. These displaer structures consist
of an electrolumiscent (EL) layer on the base of ZnS luminophore and a protective nonorganic
or organic layer [1, 2].
The improvement in the brighness on this type of structures attract our interest. Our
recently investigations connected with illumination of the one of the layers with nonpolarization
monochromatic light with λ = 365nm emitted by a Hg spectral lamp show
increase the integral brighness of the EL structure.
In the present experiment we investigate the influence of the N 2 laser light on the
brighness of EL structure with different color of luminiscence.
Acknowledgment
This work was supported by Ministry of Education nad Science under contracts: LME 204/06
and National Science Fund, Bulgaria 1516/05.
References
[1] E. Radeva, K. Kolentsov, L. Yourukova, D. Zhechev, E. Dimova, Journal of Physics
and Chemistry of Solids 70, 169-172 (2009)
[2] L. Yourukova, K. Kolentsov, T. Kehlibarov, SPIE, IX Congress of the Inst. Color
Assoc. 4401, 371 (2001)
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