HETEROSTRUCTURE ELECTROLUMINESCENT DIODES PREPARED FROM SELF-ASSEMBLED MULTILAYERS OF POLY(P-PHENYLENE VINYLENE) AND SULFONATED POLYANILINE

被引：66

作者：

ONODA, M ^{[1
]}

YOSHINO, K ^{[1
]}

机构：

[1] OSAKA UNIV,FAC ENGN,DEPT ELECTR ENGN,SUITA,OSAKA 565,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1995年 / 34卷 / 2B期

关键词：

CONJUGATED POLYMER; POLY(P-PHENYLENE VINYLENE); SULFONATED POLYANILINE; SELF-ASSEMBLED MULTILAYER HETEROSTRUCTURES; ULTRATHIN FILM; LIGHT-EMITTING DIODE; LED; ELECTROLUMINESCENCE; PHOTOLUMINESCENCE;

D O I：

10.1143/JJAP.34.L260

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Multilayer heterostructure thin films of electroactive polymers such as poly(p-phenylene vinylene) (PPV), -precursor and sulfonated polyaniline (SPAn), have been successfully fabricated by a process based on the spontaneous self-assembly of conjugated polyion on a substrate. We have prepared SPAn/PPV multilayer-heterostructure light-emitting diodes (LEDs) using this electrostatic self-assembly technique and discussed the electroluminescence (EL) properties. The thickness of each bilayer is about 20 Angstrom. The LED device composed of 10 bilayers has a turn-on voltage of about 1.4 V and greenish-yellow light was clearly observed under normal room illumination even at low driving voltage. These results are discussed in terms of radiative recombination of the singlet polaron-excitons formed by injection of electrons and holes and the formation of polaron-excitons in PPV layers of SPAn/PPV heterostructures.

引用

页码：L260 / L263

页数：4

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