Modification of zinc sulfide phosphors by irradiation with gamma-ray photons and electrons

Journal Article · Fri Sep 15 04:00:00 EDT 2006 · Semiconductors

DOI:https://doi.org/10.1134/S1063782606090041· OSTI ID:21088484

Komarov, E V ^[1]; Myakin, S V; Vasil'eva, I V ^[2]; Kuznetsov, A I ^[1]

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1. Technical University, St. Petersburg State Technological Institute (Russian Federation)
2. RADIANT Technological Center (Russian Federation)

The effect of {gamma}-ray photons and electron beams on electroluminescence of the ZnS:(Cu, Br) and ZnS:(Cu, Al, Br) phosphors is studied. Irradiation of both samples with {gamma}-ray photons and of the ZnS(Cu, Br) sample with electrons makes it possible to increase the emission intensity by 20-35% at the optimal radiation dose of 5-10 Mrad. In this case, the relative intensity of the green-emission band increases in the electroluminescence spectra of all samples, presumably due to dissociation of the Cu{sub I}-Cu{sub Zn} and Br{sub Zn}-V{sub Zn} donor-acceptor pairs. Thus, irradiation makes it possible to control the intensity and spectrum of phosphors' emission, which can be used for nonchemical lithography of luminescent layers.

• OSTI ID: 21088484
• Journal Information: Semiconductors, Journal Name: Semiconductors Journal Issue: 9 Vol. 40; ISSN SMICES; ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM COMPOUNDS
BROMINE COMPOUNDS
COPPER COMPOUNDS
DISSOCIATION
ELECTROLUMINESCENCE
ELECTRON BEAMS
ELECTRONS
GAMMA RADIATION
IRRADIATION
LAYERS
PHOTONS
RADIATION DOSES
SPECTRA
ZINC SULFIDES