1.54 μm near-infrared photoluminescent and electroluminescent properties of a new Erbium (111) organic complex

被引：52

作者：

Li, Zhefeng ^{[1
,2
]}

Yu, Jiangbo ^{[1
]}

Zhou, Liang ^{[1
,2
]}

Zhang, Hongjie ^{[1
]}

Deng, Ruiping ^{[1
]}

Guo, Zhiyong ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100064, Peoples R China

来源：

ORGANIC ELECTRONICS | 2008年 / 9卷 / 04期

基金：

中国国家自然科学基金;

关键词：

electroluminescence; near-infrared; erbium complex;

D O I：

10.1016/j.orgel.2008.02.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The crystal structure of Er(PM)(3)(TP)(2) [PM = 1-Phenyl-3-methyl-4-isobutyryl-5-pyrazoloiie, TP = triphenyl phosphine oxide] was reported and its photoluminescence properties were studied by UV-vis absorption, excited, and emission spectra. The Judd-ofelt theory was introduced to calculate the radiative transition rate and the radiative decay time of 3.65 ms for the I-4(13/2) -> I-4(15/2) transition of Er3+ ion in this complex. The antenna-effect and phonon-assisted energy-transfer were introduced to discuss the intramolecular energy transfer from ligands to Er3+ ion. Based on this Er(111) complex as the emitter, the multilayer phosphorescent organic light emitting diode was fabricated with the structure of ITO/NPB 20 nm/Er(PM)(3)(TP)(2) 50 nm/BCP 20 nm/AlQ 40 nm/LiF 1 nm/Al 120 nm, which shows the typical 1.54 mu m near-Infrared (NIR) emission from Er3+ ion with the maximum NIR irradiance of 0.21 mu W/cm(2) (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：487 / 494

页数：8

共 38 条

[21] Correlation between the lowest triplet state energy level of the ligand and lanthanide(III) luminescence quantum yield [J].