Electric field distribution in polymer light-emitting electrochemical cells

被引：64

作者：

deMello, JC ^{[1
]}

Halls, JJM ^{[1
]}

Graham, SC ^{[1
]}

Tessler, N ^{[1
]}

Friend, RH ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.85.421

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use electroabsorption spectroscopy and modeling studies to probe the electric field in light-emitting electrochemical cells. At room temperature and constant applied bias, the steady-state internal field is zero For a range of biases. However, when the ions are frozen in place by cooling under steady bias, and the bias is subsequently changed, the profile of the electric potential resembles a typical p-n junction.

引用

页码：421 / 424

页数：4

共 13 条

[1] Bruce P.G., 1995, SOLID STATE ELECTROC, P119
[2] LIGHT-EMITTING-DIODES BASED ON CONJUGATED POLYMERS
BURROUGHES, JH
BRADLEY, DDC
BROWN, AR
MARKS, RN
MACKAY, K
FRIEND, RH
BURN, PL
HOLMES, AB
[J]. NATURE, 1990, 347 (6293) : 539 - 541
[3] Direct measurement of conjugated polymer electronic excitation energies using metal/polymer/metal structures
Campbell, IH
Hagler, TW
Smith, DL
Ferraris, JP
[J]. PHYSICAL REVIEW LETTERS, 1996, 76 (11) : 1900 - 1903
[4] Operating stability of light-emitting polymer diodes based on poly(p-phenylene vinylene)
Carter, JC
Grizzi, I
Heeks, SK
Lacey, DJ
Latham, SG
May, PG
delosPanos, OR
Pichler, K
Towns, CR
Wittmann, HF
[J]. APPLIED PHYSICS LETTERS, 1997, 71 (01) : 34 - 36
[5] Ionic space-charge assisted current injection in organic light emitting diodes
deMello, JC
Tessler, N
Graham, SC
Li, X
Holmes, AB
Friend, RH
[J]. SYNTHETIC METALS, 1997, 85 (1-3) : 1277 - 1278
[6] Ionic space-charge effects in polymer light-emitting diodes
deMello, JC
Tessler, N
Graham, SC
Friend, RH
[J]. PHYSICAL REVIEW B, 1998, 57 (20) : 12951 - 12963
[7] Imaging the structure of the p-n junction in polymer light-emitting electrochemical cells
Dick, DJ
Heeger, AJ
Yang, Y
Pei, QB
[J]. ADVANCED MATERIALS, 1996, 8 (12) : 985 - 987
[8] Direct observation of junction formation in polymer light-emitting electrochemical cells
Gao, J
Heeger, AJ
Campbell, IH
Smith, DL
[J]. PHYSICAL REVIEW B, 1999, 59 (04): : R2482 - R2485
[9] Polymer light-emitting electrochemical cells: In situ formation of a light-emitting p-n junction
Pei, QB
Yang, Y
Yu, G
Zhang, C
Heeger, AJ
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (16) : 3922 - 3929
[10] POLYMER LIGHT-EMITTING ELECTROCHEMICAL-CELLS
PEI, QB
YU, G
ZHANG, C
YANG, Y
HEEGER, AJ
[J]. SCIENCE, 1995, 269 (5227) : 1086 - 1088

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