Electrochemical deposition of Bis(N,N'-diphenylaminoaryl) substituted ferrocenes, and their application as a hole-injection layer on polymeric light-emitting diodes

被引：45

作者：

Chiang, Chao Cheng ^{[1
]}

Chen, Hong-Chun ^{[1
]}

Lee, Chin-sheng ^{[1
]}

Leung, Man-kit ^{[1
,2
]}

Lin, Kun-Rung ^{[2
]}

Hsieh, Kuo-Huang ^{[2
]}

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

[2] Natl Taiwan Univ, Inst Polymer Sci Engn, Taipei 106, Taiwan

来源：

CHEMISTRY OF MATERIALS | 2008年 / 20卷 / 02期

关键词：

D O I：

10.1021/cm702217u

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synthesis, spectro-electrochemical study, and electrochemical polymerization of bis(diphenylamino) substituted ferrocenes (Fcs), including the family of the 1,3,4-oxadiazole (OXD) bridged 1,1'-[p-(Ph2N)(C6H4)(n)OXD](2)Fc and the vinylene bridged ferrocene 1,1'-[p-(Ph2N)(C6H4)-(E)-CH=CH](2)Fc, have been carried out. The ferrocene compounds underwent three stepwise one-electron oxidations to form the (3+) radical cations that further electrochemically polymerized on a Pt or an indium tin oxide (ITO) electrode surface. The polymeric layers showed extremely good hole-injection properties. The polymeric light emitting devices (PLEDs) of ITO/ED-1,1'-[Ph2N(C6H4)3OXD](2)Fc/PVK:Ir(PPy)(3):PBD/Mg-Ag showed a turn-on voltage (at 100 cd/m(2)) of I I V, with a maximum brightness of 27 700 cd/m(2). The turn-on voltage was 1.5 V lower than that of the poly(3,4-ethylenedioxythiophene)poly(styrenesulfonate) based PLED and 2 V lower than the corresponding electrochemically deposited poly(4-(N,N-diphenylamino)styrene) based PLED.

引用

页码：540 / 552

页数：13

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