Effect of the Cu content and ZnS treatment on the characteristics of synthesized ZnS:(Cu, Cl) electroluminescent phosphors

Journal Article · Tue May 15 04:00:00 EDT 2012 · Semiconductors

DOI:https://doi.org/10.1134/S1063782612050223· OSTI ID:22038972

Sychov, M M; Lebedev, V T; Kulvelis, Yu V ^[1]; Toeroek, Gy ^[2]; Sokolov, A E; Trunov, V A ^[1]; Bakhmetyev, V V; Kotomin, A A; Dushenok, S A; Kozlov, A S ^[3]

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1. Russian Academy of Sciences, Konstantinov Petersburg Nuclear Physics Institute (Russian Federation)
2. Hungarian Academy of Sciences, Research Institute for Solid State Physics and Optics, Wigner Research Centre for Physics (Hungary)
3. St. Petersburg State Institute of Technology (Technical University) (Russian Federation)

The effect of the pretreatment of ZnS via different methods on the characteristics of synthesized ZnS:(Cu, Cl) electroluminescent phosphors with varying concentrations of the activator dopant (Cu) is studied. As a result of the pretreatment of ZnS with accelerated electrons and in nitrogen plasma, an increase in the emission brightness of the synthesized phosphor and a shift of the luminescence spectrum to longer wavelengths are observed. These effects are attributed with increase in content of the activator in the phosphor matrix because of the formation of extra defects in the ZnS structure during treatment. In the case of shockwave treatment of ZnS, the generation of defects is not compensated by heat treatment during synthesis of the phosphor, and a positive enhanced-brightness effect is not attained.

• OSTI ID: 22038972
• Journal Information: Semiconductors, Journal Name: Semiconductors Journal Issue: 5 Vol. 46; ISSN SMICES; ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BRIGHTNESS
DEFECTS
ELECTROLUMINESCENCE
HEAT TREATMENTS
PLASMA
SPECTRA
SYNTHESIS
ZINC SULFIDES