Amphiphilic diblock copolymer compatibilizers and their effect on the morphology and performance of polythiophene:Fullerene solar cells

Kevin Sivula; Zachary T. Ball; Nobuhiro Watanabe; Jean M.J. Fréchet

doi:10.1002/adma.200501787

Amphiphilic diblock copolymer compatibilizers and their effect on the morphology and performance of polythiophene:Fullerene solar cells

Kevin Sivula, Zachary T. Ball, Nobuhiro Watanabe, Jean M.J. Fréchet^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

394 Scopus citations

Abstract

Fullerene-containing homopolymers, as well as donor-acceptor amphiphilic diblock copolymers were synthesized and implemented in bulk-heterojunction organic thin-film solar cells. The effects of the diblock material, poly-block-poly, on the morphology of thin-film blends of poly 3-hexylthiophene (P3HT) and [6,6]-phenyl C₆₁-butyric acid methyl ester (PCBM) were investigated using transmission electron microscopy (TEM). The thermal treatment is necessary to increase the mobility of the P3HT and obtain good device performance. Lowering the interfacial energy between polymer and fullerene can alter the morphology of blended thin film. Phase segregation can be altered at observable length scales with TEM by changing the amount of diblock added.

Original language	English (US)
Pages (from-to)	206-210
Number of pages	5
Journal	Advanced Materials
Volume	18
Issue number	2
DOIs	https://doi.org/10.1002/adma.200501787
State	Published - Jan 19 2006
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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abstract = "Fullerene-containing homopolymers, as well as donor-acceptor amphiphilic diblock copolymers were synthesized and implemented in bulk-heterojunction organic thin-film solar cells. The effects of the diblock material, poly-block-poly, on the morphology of thin-film blends of poly 3-hexylthiophene (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) were investigated using transmission electron microscopy (TEM). The thermal treatment is necessary to increase the mobility of the P3HT and obtain good device performance. Lowering the interfacial energy between polymer and fullerene can alter the morphology of blended thin film. Phase segregation can be altered at observable length scales with TEM by changing the amount of diblock added.",

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AU - Fréchet, Jean M.J.

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Y1 - 2006/1/19

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AB - Fullerene-containing homopolymers, as well as donor-acceptor amphiphilic diblock copolymers were synthesized and implemented in bulk-heterojunction organic thin-film solar cells. The effects of the diblock material, poly-block-poly, on the morphology of thin-film blends of poly 3-hexylthiophene (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) were investigated using transmission electron microscopy (TEM). The thermal treatment is necessary to increase the mobility of the P3HT and obtain good device performance. Lowering the interfacial energy between polymer and fullerene can alter the morphology of blended thin film. Phase segregation can be altered at observable length scales with TEM by changing the amount of diblock added.

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Amphiphilic diblock copolymer compatibilizers and their effect on the morphology and performance of polythiophene:Fullerene solar cells

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