Polymer light-emitting electrochemical cells with frozen junctions

被引：88

作者：

Gao, J ^{[1
]}

Li, YF

Yu, G

Heeger, AJ

机构：

[1] Univ Calif Santa Barbara, Inst Polymers & Polymer Solids, Santa Barbara, CA 93106 USA

[2] Uniax Corp, Goleta, CA 93117 USA

来源：

JOURNAL OF APPLIED PHYSICS | 1999年 / 86卷 / 08期

关键词：

D O I：

10.1063/1.371408

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on polymer light-emitting electrochemical cells (LECs) with frozen p-i-n junctions. The dynamic p-i-n junction in polymer LECs is stabilized by lowering the temperature below the glass transition temperature of the ion-transport polymer. Detailed studies have shown that the frozen p-i-n junction in LECs based on the luminescent polymer poly[5-(2'ethylhexyloxy)-2-methoxy-1,4-phenylene vinylene] and polyethylene oxide containing lithium triflate (PEO:LiCF3SO3) is stable at temperatures up to 200 K. Frozen-junction LECs offer a number of advantages; they exhibit unipolar light emission, balanced injection, fast response, high brightness, low operating voltage, and insensitivity to electrode materials and film thickness. (C) 1999 American Institute of Physics. [S0021-8979(99)06920-0].

引用

页码：4594 / 4599

页数：6

共 29 条

[1] VISIBLE-LIGHT EMISSION FROM SEMICONDUCTING POLYMER DIODES [J].

BRAUN, D ;

HEEGER, AJ .

APPLIED PHYSICS LETTERS, 1991, 58 (18) :1982-1984

[2] LIGHT-EMITTING-DIODES BASED ON CONJUGATED POLYMERS [J].

BURROUGHES, JH ;

BRADLEY, DDC ;

BROWN, AR ;

MARKS, RN ;

MACKAY, K ;

FRIEND, RH ;

BURN, PL ;

HOLMES, AB .

NATURE, 1990, 347 (6293) :539-541

[3] Efficient, fast response light-emitting electrochemical cells: Electroluminescent and solid electrolyte polymers with interpenetrating network morphology [J].

Cao, Y ;

Yu, G ;

Heeger, AJ ;

Yang, CY .

APPLIED PHYSICS LETTERS, 1996, 68 (23) :3218-3220

[4] Imaging the structure of the p-n junction in polymer light-emitting electrochemical cells [J].

Dick, DJ ;

Heeger, AJ ;

Yang, Y ;

Pei, QB .

ADVANCED MATERIALS, 1996, 8 (12) :985-987

[5]

Gao J, 1998, ADV MATER, V10, P692, DOI 10.1002/(SICI)1521-4095(199806)10:9<692::AID-ADMA692>3.3.CO

[6]

2-X

[7] Polymer light-emitting electrochemical cells with frozen p-i-n junction [J].

Gao, J ;

Yu, G ;

Heeger, AJ .

APPLIED PHYSICS LETTERS, 1997, 71 (10) :1293-1295

[8] Direct observation of junction formation in polymer light-emitting electrochemical cells [J].

Gao, J ;

Heeger, AJ ;

Campbell, IH ;

Smith, DL .

PHYSICAL REVIEW B, 1999, 59 (04) :R2482-R2485

[9]

GREENWALD Y, 1997, J ELECTROCHEM SOC, V144, pL70

[10] An iodine-doped polymer light-emitting diode [J].

Huang, F ;

MacDiarmid, AG ;

Hsieh, BR .

APPLIED PHYSICS LETTERS, 1997, 71 (17) :2415-2417

← 1 2 3 →