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 Frechet*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

379 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 languageEnglish (US)
Pages (from-to)206-210
Number of pages5
JournalAdvanced Materials
Volume18
Issue number2
DOIs
StatePublished - Jan 19 2006

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Amphiphilic diblock copolymer compatibilizers and their effect on the morphology and performance of polythiophene:Fullerene solar cells'. Together they form a unique fingerprint.

Cite this