Frequency-dependent light emission and extinction of electrolumine scent ZnS:Cu phosphor

被引：35

作者：

Ibafiez, J.

Garcia, E.

Gil, L.

Mollar, M.

Mari, B. ^{[1
]}

机构：

[1] Univ Politecn Valencia, Dept Elect Engn, E-46071 Valencia, Spain

[2] Univ Politecn Valencia, Dept Fis Aplicada, E-46071 Valencia, Spain

来源：

DISPLAYS | 2007年 / 28卷 / 03期

关键词：

phosphors; frequency dependence; electroluminescence; EL devices; electroluminescent spectroscopy;

D O I：

10.1016/j.displa.2007.04.001

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Alternating current thick film light emitters has been prepared by using ZnS:Cu commercial phosphors and thick film technology. The dependence of electroluminescent emission on excitation frequency and voltage applied to light emission devices was studied. Electroluminescent spectra were decomposed into four Gaussians corresponding to emission transitions and their respective peak position wavelengths and amplitudes were analyzed as a function of the applied voltage frequency. The time constants associated to every of those centres have been calculated by determining the extinction times of the related light emission. A straight relationship between electroluminescence extinction time and frequency response for each emission wavelength has been found. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：112 / 117

页数：6

共 8 条

[1] Spectroscopic characterisation of alternate current electroluminescent devices based on ZnS-Cu [J].