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

共 63 条

[1] Flexible large area polymer solar cells based on poly(3-hexylthiophene)/fullerene [J].

Al-Ibrahim, M ;

Roth, HK ;

Zhokhavets, U ;

Gobsch, G ;

Sensfuss, S .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2005, 85 (01) :13-20

[2] Vertically segregated polymer-blend photovoltaic thin-film structures through surface-mediated solution processing [J].

Arias, AC ;

Corcoran, N ;

Banach, M ;

Friend, RH ;

MacKenzie, JD ;

Huck, WTS .

APPLIED PHYSICS LETTERS, 2002, 80 (10) :1695-1697

[3]

ARIAS ACJ, 2006, MACROMOL SCI POLYM R, V46, P103

[4]

Beh WS, 1999, ADV MATER, V11, P1038, DOI 10.1002/(SICI)1521-4095(199908)11:12<1038::AID-ADMA1038>3.0.CO

[5]

2-L

[6] Lamellar structures formed in spin-cast blends of insulating and conducting polymers [J].

Bernasik, A ;

Wlodarczyk-Miskiewicz, J ;

Luzny, W ;

Kowalski, K ;

Raczkowska, J ;

Rysz, J ;

Budkowski, A .

SYNTHETIC METALS, 2004, 144 (03) :253-257

[7] CHAIN-LENGTH DEPENDENCE OF ELECTRONIC AND ELECTROCHEMICAL PROPERTIES OF CONJUGATED SYSTEMS - POLYACETYLENE, POLYPHENYLENE, POLYTHIOPHENE, AND POLYPYRROLE [J].

BREDAS, JL ;

SILBEY, R ;

BOUDREAUX, DS ;

CHANCE, RR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (22) :6555-6559

[8] Interface morphology snapshots of vertically segregated thin films of semiconducting polymer/polystyrene blends [J].

Castro, Fernando A. ;

Graeff, Carlos F. O. ;

Heier, Jakob ;

Hany, Roland .

POLYMER, 2007, 48 (08) :2380-2386

[9] Nanostructured organic layers via polymer demixing for interface-enhanced photovoltaic cells [J].

Castro, Fernando A. ;

Benmansour, Hadjar ;

Graeff, Carlos F. O. ;

Nuesch, Frank ;

Tutis, Eduard ;

Hany, Roland .

CHEMISTRY OF MATERIALS, 2006, 18 (23) :5504-5509

[10] Observation of field-effect in a cross-linked polyfluorene semiconductor [J].

Charas, A. ;

Alcacer, L. ;

Pimentel, A. ;

Conde, J. P. ;

Morgado, J. .

CHEMICAL PHYSICS LETTERS, 2008, 455 (4-6) :189-191

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