Optical properties of SrS:Cu,Ag two-component phosphors for electroluminescent devices

被引：32

作者：

Park, W ^{[1
]}

Jones, TC ^{[1
]}

Summers, CJ ^{[1
]}

机构：

[1] Georgia Inst Technol, Mfg Res Ctr, Phosphor Technol Ctr Excellence, Atlanta, GA 30332 USA

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 13期

关键词：

D O I：

10.1063/1.123085

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The luminescence characteristics of a two-component electroluminescent (EL) phosphor, SrS: Cu, Ag, were investigated by optical spectroscopy. Motivated by the discovery of efficient EL from SrS: Cu, SrS: Ag was investigated but exhibited poor EL emission, even though it showed a superior blue color. Thus, SrS: Cu, Ag samples were prepared in order to investigate if the Ag luminescence could be sensitized to produce a more efficient and saturated blue EL phosphor. A detailed spectroscopic study on SrS: Cu, Ag revealed that the emission characteristics of SrS: Cu, Ag were identical to SrS: Ag, whereas the excitation spectra resembled SrS: Cu. These results demonstrated the efficient energy transfer from Cu to Ag, confirming the successful sensitization. (C) 1999 American Institute of Physics. [S0003-6951(99)00713-5].

引用

页码：1785 / 1787

页数：3