Poly[(3-hexylthiophene)-block-(3-semifluoroalkylthiophene)] for polymer solar cells

Ichiko Yamada, Koji Takagi, Yasuhiko Hayashi, Tetsuo Soga, Norio Shibata, Takeshi Toru

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We report the synthesis of poly[(3-hexylthiophene)-block-(3-(4,4,5,5,6,6,7,7,7- nonafluoroheptyl)thiophene)], P(3HT-b-3SFT), carried out by the Grignard Metathesis Method (GRIM). The copolymers composition was determined by 1H and 19F NMR spectroscopies, and gel permeation chromatography (GPC). The thin films of P(3HT-b-3SFT) were investigated by ultraviolet-visible absorption spectroscopy and atomic force microscopy (AFM). We also fabricated bulk-hetero junction (BHJ) solar cells based on blends of P(3HT-b-3SFT) and [6,6]-phenyl-C 61-butyric acid methyl ester (PCBM). Although the composition ratio of P3SFT in P(3HT-b-3SFT) was low, the influence of P3SFT on the morphology and properties of solar cells was significant. The annealing process for the BHJ solar cells induced the formation of large domains and led to poor solar cell performance. The BHJ solar cells, based on PCBM and P(3HT-b-3SFT), prepared by the non-annealing process, had a maximum power conversion efficiency of 0.84% under 100 mW/cm 2 (AM 1.5 solar illumination) in air.

Original languageEnglish
Pages (from-to)5027-5039
Number of pages13
JournalInternational Journal of Molecular Sciences
Volume11
Issue number12
DOIs
Publication statusPublished - Dec 2010
Externally publishedYes

Fingerprint

Intercellular Junctions
Solar cells
Polymers
Butyric Acid
solar cells
polymers
Esters
Butyric acid
butyric acid
Thiophenes
Atomic Force Microscopy
esters
Lighting
Gel Chromatography
Spectrum Analysis
Magnetic Resonance Spectroscopy
Air
gel chromatography
metathesis
Gel permeation chromatography

Keywords

  • Conjugated block copolymer
  • Fluorine
  • PCBM
  • References
  • Semifluoroalkyl chain
  • Solar cell

ASJC Scopus subject areas

  • Computer Science Applications
  • Molecular Biology
  • Catalysis
  • Inorganic Chemistry
  • Spectroscopy
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Medicine(all)

Cite this

Poly[(3-hexylthiophene)-block-(3-semifluoroalkylthiophene)] for polymer solar cells. / Yamada, Ichiko; Takagi, Koji; Hayashi, Yasuhiko; Soga, Tetsuo; Shibata, Norio; Toru, Takeshi.

In: International Journal of Molecular Sciences, Vol. 11, No. 12, 12.2010, p. 5027-5039.

Research output: Contribution to journalArticle

Yamada, Ichiko ; Takagi, Koji ; Hayashi, Yasuhiko ; Soga, Tetsuo ; Shibata, Norio ; Toru, Takeshi. / Poly[(3-hexylthiophene)-block-(3-semifluoroalkylthiophene)] for polymer solar cells. In: International Journal of Molecular Sciences. 2010 ; Vol. 11, No. 12. pp. 5027-5039.
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