PACS: 71.55.Gs; 73.61.Ga; 78.60.Fi; 85.60.Jb


Self-organization patterns in electroluminescence of bistable ZnS:Mn thin-film structures

N.A. Vlasenko*, H.-G. Purwins**, Z.L. Denisova*, Ya.F. Kononets*, F.-J. Niedernostheide**, L.I. Veligura*, S. Zuccaro**


*V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 41, prospect Nauky, 03028 Kyiv, Ukraine
Phone: +380 (44) 2656252, E-mail: vlasenko@isp.kiev.ua.
*Institute of Applied Physics, University of Muenster, Corrensstrasse 2/4, Muenster, D-48149, Germany,
Phone: 0049 251 8333511, E-mail: purwins@uni-muenster.de


Abstract. An overview of recent original results concerning self-organized pattern formation in the emission of bistable alternating current ZnS:Mn thin - film electroluminescent structures (TFELS) as a dissipative system is given. The influence of technological factors, affecting the properties TFELS, and driving conditions on both the patterns and the hysteresis of the charge- voltage dependence that is responsible for bistability of the TFELS are considered. The correlation between patterns and the shape of the hysteresis is analyzed. The physical processes with positive and negative feedback, which serve, respectively, as activator and inhibitor in the given dissipative system, are discussed.

Keywords: self-organization, patterns, electroluminescence, ZnS:Mn, thin-film structures, bistability.
Paper received 28.11.03; accepted for publication 30.03.04.

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