(Y2O3-GeO2) phosphor thin-film electroluminescent emitting layers preparedby magnetron sputtering

Citation
T. Minami et al., (Y2O3-GeO2) phosphor thin-film electroluminescent emitting layers preparedby magnetron sputtering, SURF COAT, 146, 2001, pp. 508-512
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Material Science & Engineering
Journal title
SURFACE & COATINGS TECHNOLOGY
ISSN journal
0257-8972 → ACNP
Volume
146
Year of publication
2001
Pages
508 - 512
Database
ISI
SICI code
0257-8972(200109/10)146:<508:(PTEEL>2.0.ZU;2-D
Abstract
In this paper, new multicomponent oxides are shown to be promising as a hos t material for the phosphor thin-film emitting layer of thin-film electrolu minescent (TFEL) devices. Mn-activated (Y2O3-GeO2) multicomponent oxide pho sphor thin films were prepared by r.f. magnetron sputtering and used as the emitting layer of TFEL devices. High luminance multicolor emissions were o btained in TFEL devices using (Y2O3-GeO2):Mn thin films prepared with a GeO 2 content of 0-100 mol.%. In a yellow emitting TFEL device fabricated using a Y2GeO5 phosphor thin film prepared with a GeO2 content of approximately 50 mol.%, a high luminance of 758 cd/m(2) and a luminous efficiency of 1.4l m/W were obtained when driven by a sinusoidal wave voltage at 1 kHz. (C) 20 01 Elsevier Science B.V. All rights reserved.