Sublimation not an innocent technique: A case of bis-cyclometalated iridium emitter for OLED

被引：74

作者：

Baranoff, Etienne ^{[1
]}

Suarez, Stephane ^{[2
]}

Bugnon, Philippe ^{[2
]}

Barolo, Claudia ^{[1
]}

Buscaino, Roberto ^{[1
]}

Scopelliti, Rosario ^{[1
]}

Zuppiroli, Libero ^{[2
]}

Graetzel, Michael ^{[1
]}

Nazeeruddin, Md. K. ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Sch Basic Sci, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland

[2] Swiss Fed Inst Technol, Sch Basic Sci, Inst Chem Sci & Engn, Lab Optoelect Mat Mol, CH-1015 Lausanne, Switzerland

来源：

INORGANIC CHEMISTRY | 2008年 / 47卷 / 15期

关键词：

D O I：

10.1021/ic800747t

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Isomerization of a neutral bis-cyclometalated iridium(III) complex has been observed for the first time during the preparation of vacuum-processed organic light-emitting devices (OLEDs) and reproduced in solution. Isolation of the isomer revealed a cis organization of the two pyridine rings of the cyclometalating ligands. Photophysical studies show very similar emission properties of the two isomers. However, due to in situ isomerization, it is only possible to prepare vacuum-processed OLED devices having a mixture of isomers.

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页码：6575 / 6577

页数：3

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