SEVERAL BLUE-EMITTING THIN-FILM ELECTROLUMINESCENT DEVICES

被引：12

作者：

MIURA, N

ISHIKAWA, T

SASAKI, T

OKA, T

OHATA, H

MATSUMOTO, H

NAKANO, R

机构：

[1] Department of Electronics and Communication, School of Science and Technology

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1992年 / 31卷 / 1A-B期

关键词：

ELECTROLUMINESCENCE; THIN-FILM; TM3+ ION; ZNS-TMOF; Y2O2S-TM; CDF2-TMOX; ZNF2-TMOX; YF3-TM; CAF2-EU; BLUE EMISSION;

D O I：

10.1143/JJAP.31.L46

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Blue-emitting thin-film electroluminescent (EL) devices were studied. As the blue-emitting phosphor, thin-films in which the Tm3+ ion was doped into several hosts (ZnS, Y2O2S, CdF2, ZnF2 and YF3) and CaF2:Eu were investigated. Blue EL emission of Tm" ions arising from the 1D2 --> H-3(4), or 1G4 --> H-3(6) transition was observed in each Tm-doped device. The most dominant lines in these emissions varied with the kind of host materials. The CaF2:Eu thin-film also showed blue electroluminescence due to a parity-allowed 4f6(7F)5d --> 4f7(8S) transition of the Eu2+ ion.

引用

页码：L46 / L48

页数：3

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