The Design and Realization of Flexible, Long-Lived Light-Emitting Electrochemical Cells

被引：112

作者：

Fang, Junfeng ^{[1
]}

Matyba, Piotr ^{[1
]}

Edman, Ludvig ^{[1
]}

机构：

[1] Umea Univ, Dept Phys, Organ Photon & Elect Grp, SE-90187 Umea, Sweden

来源：

ADVANCED FUNCTIONAL MATERIALS | 2009年 / 19卷 / 16期

关键词：

ELECTROLUMINESCENT DEVICES; ORGANIC ELECTRONICS; HIGH-EFFICIENCY; LIFETIME; PERFORMANCE; OPERATION; COMPLEX; FILMS;

D O I：

10.1002/adfm.200900479

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polymer light-emitting electrochemical cells (LECs) offer an attractive opportunity for low-cost production of functional devices in flexible and large-area configurations, but the critical drawback in comparison to competing light-emission technologies is a limited operational lifetime. Here, it is demonstrated that it is possible to improve the lifetime by straightforward and motivated means from a typical value of a few hours to more than one month of uninterrupted operation at significant brightness (> 100 cd m(-2)) and relatively high power conversion efficiency (2 lm W-1 for orange-red emission). Specifically, by optimizing the composition of the active material and by employing an appropriate operational protocol, a desired doping structure is designed and detrimental chemical and electrochemical side reactions are identified and minimized. Moreover, the first functional flexible LEC with a similar promising device performance is demonstrated.

引用

页码：2671 / 2676

页数：6

共 56 条

[31] Effect of water vapor on the operation and stability of tris(2,2′-bipyridine)ruthenium(II)-based light-emitting electrochemical cells [J].

Pile, DL ;

Bard, AJ .

CHEMISTRY OF MATERIALS, 2005, 17 (16) :4212-4217

[32] Scanning kelvin probe imaging of the potential profiles in fixed and dynamic planar LECs [J].

Pingree, Liam S. C. ;

Rodovsky, Deanna B. ;

Coffey, David C. ;

Bartholomew, Glenn P. ;

Ginger, David S. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (51) :15903-15910

[33] Electrical Scanning Probe Microscopy on Active Organic Electronic Devices [J].

Pingree, Liam S. C. ;

Reid, Obadiah G. ;

Ginger, David S. .

ADVANCED MATERIALS, 2009, 21 (01) :19-28

[34] Doping front propagation in light-emitting electrochemical cells [J].

Robinson, Nathaniel D. ;

Shin, Joon-Ho ;

Berggren, Magnus ;

Edman, Ludvig .

PHYSICAL REVIEW B, 2006, 74 (15)

[35] Single layer light-emitting devices with high efficiency and long lifetime based on tris(2,2′ bipyridyl) ruthenium(II) hexafluorophosphate [J].

Rudmann, H ;

Rubner, MF .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (09) :4338-4345

[36] Opto-electrical properties of single layer flexible electroluminescence device with ruthenium complex [J].

Santos, G. ;

Fonseca, F. J. ;

Andrade, A. M. ;

Patrocinio, A. O. T. ;

Mizoguchi, S. K. ;

Iha, N. Y. Murakami ;

Peres, M. ;

Simoes, W. ;

Monteiro, T. ;

Pereira, L. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2008, 354 (19-25) :2571-2574

[37] LED to LEC transition behavior in polymer light-emitting devices [J].

Shao, Yan ;

Bazan, Guillermo C. ;

Heeger, Alan J. .

ADVANCED MATERIALS, 2008, 20 (06) :1191-+

[38] Long-lifetime polymer light-emitting electrochemical cells [J].

Shao, Yan ;

Bazan, Guillermo C. ;

Heeger, Alan J. .

ADVANCED MATERIALS, 2007, 19 (03) :365-+

[39] Polymer light-emitting electrochemical cells:: Frozen-junction operation of an "ionic liquid" device -: art. no. 043506 [J].

Shin, JH ;

Xiao, S ;

Fransson, Å ;

Edman, L .

APPLIED PHYSICS LETTERS, 2005, 87 (04)

[40] The influence of electrodes on the performance of light-emitting electrochemical cells [J].

Shin, Joon Ho ;

Matyba, Piotr ;

Robinson, Nathaniel D. ;

Edman, Ludvig .

ELECTROCHIMICA ACTA, 2007, 52 (23) :6456-6462

← 1 2 3 4 5 6 →