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Titolo:
Codoping of magnetron-sputter deposited ZnS : TbOF with Ag, Cu, and Ce forelectroluminescent phosphors
Autore:
Kim, JP; Davidson, M; Moorehead, D; Puga-Lambers, M; Zhai, Q; Holloway, P;
Indirizzi:
Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA Univ FloridaGainesville FL USA 32611 i & Engn, Gainesville, FL 32611 USA
Titolo Testata:
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS
fascicolo: 5, volume: 19, anno: 2001,
pagine: 2244 - 2251
SICI:
0734-2101(200109/10)19:5<2244:COMDZ:>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTRON-BEAM EVAPORATION; DEVICES; DISPLAYS; CENTERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
--discip_EC--
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Kim, JP Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA Univ Florida Gainesville FL USA 32611 , Gainesville, FL 32611 USA
Citazione:
J.P. Kim et al., "Codoping of magnetron-sputter deposited ZnS : TbOF with Ag, Cu, and Ce forelectroluminescent phosphors", J VAC SCI A, 19(5), 2001, pp. 2244-2251

Abstract

rf magnetron-sputter-deposited ZnS:TbOF thin-film electroluminescent (EL) phosphors 1 mum +/- 10% thick were codoped with Ag, Cu, Ag+Cu, and Ce and tested with 60 Hz. trapezoidal voltage pulses. After annealing at 500 degreesC for 60 min, the EL brightness at 20 V above threshold, B-20, for Cu+Ag codoped ZnS:TbOF film was 67 cd/m(2) compared to 55 cd/m(2) for undoped ZnS:TbOF films. The B-40 of Ce codoped ZnS:TbOF films annealed at the same conditions was 144 cd/m(2) compared to 86 cd/m(2) for undoped ZnS:TbOF films. While the brightness increase of Cu+Ag codoped ZnS:TbOF film is attributed to improve crystallinity and increased surface roughness, the increase due to Ce codoping of ZnS:TbOF film is more likely, due to modified space chargein the ZnS:TbOF film. (C) 2001 American Vacuum Society.

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Documento generato il 16/07/20 alle ore 18:02:04