New luminescent polymers for LEDS and LEGS

被引：18

作者：

Hwang, DH

Chuah, BS

Li, XC

Kim, ST

Moratti, SC

Holmes, AB

DeMello, JC

Friend, RH

机构：

[1] UNIV CAMBRIDGE, DEPT CHEM, MELVILLE LAB POLYMER SYNTH, CAMBRIDGE CB2 3RA, ENGLAND

[2] UNIV CAMBRIDGE, CAVENDISH LAB, DEPT PHYS, CAMBRIDGE CB3 0HE, ENGLAND

来源：

MACROMOLECULAR SYMPOSIA | 1998年 / 125卷

关键词：

D O I：

10.1002/masy.19981250109

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Statistical copolymers 5 containing poly(2-dimethyloctylsilyl-1,4-phenylenevinylene) (DMOS-PPV) and poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) have been synthesized using the dehydrohalogenation condensation route. The copolymers show a shift of photoluminescence maxima to longer wavelengths as the proportion of the MEH-PV unit increases. This trend is accompanied by reduced efficiencies and lower turn-on voltages in single layer electroluminescent devices. Light-emitting electrochemical cells (LECs) have been prepared using a blend of DMOS-PPV 1 with poly(ethylene oxide)/lithium triflate. and the homopolymer poly[2-methoxy-5-(triethoxymethoxy)-1,4-phenylene vinylene] (MTEM-PPV) 9 with lithium triflate. In comparison with single-layer devices which were fabricated using the homopolymers 1 and poly[2,5-bis(triethoxymethoxy)-1,4-phenylene vinylene] (BTEM-PPV) 10, the LEC devices showed lower turn-on voltages.

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页码：111 / 120

页数：10

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