Identification of a quenching species in ruthenium tris-bipyridine electroluminescent devices

被引：95

作者：

Soltzberg, Leonard J. ^{[1
]}

Slinker, Jason D.

Flores-Torres, Samuel

Bernards, Daniel A.

Malliaras, George G.

Abruna, Hector D.

Kim, Ji-Seon

Friend, Richard H.

Kaplan, Michael D.

Goldberg, Velda

机构：

[1] Simmons Coll, Dept Chem & Phys, Boston, MA 02115 USA

[2] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA

[3] Cornell Univ, Dept Chem & Biol Chem, Ithaca, NY 14853 USA

[4] Univ Cambridge, Dept Phys, Cavevdish Lab, Cambridge CB3 0HE, England

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 24期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1021/ja055782g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have used matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry and micro-Raman spectroscopy to identify a quenching species that is formed during operation of [Ru(bpy)(3)](2+) electroluminescent devices. We identify this performance-degrading product to be the oxobridged dimer [(bpy)(2)(H2O)RuORu(OH2)(bpy)(2)](4+) and show this dimer to be an effective quencher of device luminescence. This work is the first to detect a specific chemical degradation product formed during iTMC OLED operation.

引用

页码：7761 / 7764

页数：4

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