Insoluble Patterns of Cross-Linkable Conjugated Polymers from Blend Demixing in Spin Cast Films

被引：36

作者：

Charas, Ana ^{[1
]}

Ferreira, Quirina ^{[1
]}

Farinhas, Joana ^{[1
,2
]}

Matos, Manuel ^{[1
,2
]}

Alcacer, Luis ^{[1
,3
]}

Morgado, Jorge ^{[1
,3
]}

机构：

[1] Univ Tecn Lisboa, Inst Telecomunicacoes, Inst Super Tecn, P-1049001 Lisbon, Portugal

[2] Inst Super Engn Lisboa, Dep Eng Quim, Lisbon, Portugal

[3] Univ Tecn Lisboa, Dep Eng Quim & Biol, Inst Super Tecn, P-1049001 Lisbon, Portugal

来源：

MACROMOLECULES | 2009年 / 42卷 / 20期

关键词：

LIGHT-EMITTING-DIODES; HETEROJUNCTION SOLAR-CELLS; SELF-ASSEMBLED MONOLAYERS; PHASE-SEPARATION; CONDUCTING POLYMERS; THIN-FILMS; PHOTOVOLTAIC CELLS; EXCITON DIFFUSION; MORPHOLOGY; DEPOSITION;

D O I：

10.1021/ma901329n

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Insoluble patterns of cross-linkable conjugated polymers, CPs, are obtained from spin coating their blends with polystyrene, PS, following an approach first demonstrated for poly [2-methoxy-5-(2'-ethyl)hexyloxy-2,4-phenylenevinylene] (MEH-PPV) by Castro et al. (Chem. Mater. 2006, 18, 5504). Taking advantage of the CP and PS tendency to phase separate, we make use Of CP functionality to be crosslinked, so PS can be removed, leaving behind a solvent-resistant pattern. Columnar, spike, and porous structures can be obtained. Furthermore, we show that these patterns morphologies and dimensions can be controlled by adjusting the experimental conditions and the PS molecular weight. We present strategies to tune cross-linkable CP's films morphologies aiming for applications in organic solar cells and light-emitting devices.

引用

页码：7903 / 7912

页数：10

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