Highly efficient near-infrared organic excimer electrophosphorescent diodes

被引：89

作者：

Cocchi, M. ^{[1
]}

Virgili, D.

Fattori, V.

Williams, J. A. G.

Kalinowski, J.

机构：

[1] CNR, CNR, ISOF, Inst Organ Synth & Photoreact, I-40129 Bologna, Italy

[2] Univ Durham, Dept Chem, Durham DH1 3LE, England

[3] Gdansk Univ Technol, Dept Mol Phys, PL-80952 Gdansk, Poland

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 02期

关键词：

D O I：

10.1063/1.2430926

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The authors report the fabrication of very high efficiency near-infrared (NIR) organic light-emitting diodes (LEDs) based on a series of terdentate cyclometallated phosphorescent Pt(II) complexes PtLCl as the emitting layer. The LEDs exhibit exclusive NIR excimeric phosphorescence peaking between 705 and 720 nm for three different organic ligands (L). Due to the high excimer emission quantum yields of these Pt complexes and to confinement of the recombination zone within the emission layer, unusually high external quantum efficiencies from 9.8% to 10.7% photons/electron and a high forward light output exceeding 15 mW/cm(2) were achieved.

引用

页数：3

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