Direct observation of junction formation in polymer light-emitting electrochemical cells

被引：47

作者：

Gao, J ^{[1
]}

Heeger, AJ

Campbell, IH

Smith, DL

机构：

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

[2] Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.59.R2482

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electroabsorption (EA) measurements are used to determine the electric fields in polymer light-emitting electrochemical cells (LEC's). The EA signals are measured as a function of the de bias and are found tp increase abruptly above a threshold voltage. The EA measurements are compared with the capacitance-voltage and current-voltage characteristics. Calculations using a model based on electrochemical junction formation are in agreement with all of the experimental observations. These results show unambiguously that the picture of electrochemical junction formation in LEC's is correct. [S0163-1829(99)51204-6].

引用

页码：R2482 / R2485

页数：4

共 16 条

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