High crystallinity parameter poly(3-hexylthiophene-2,5-diyl) thin film fabricated by the electrospray deposition method

Yingjie Liao, Takeshi Fukuda, Kenji Takagi, Norihiko Kamata, Fumihiko Fukuda, Yukio Furukawa

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Control of the crystallinity parameter and phase segregation of poly(3-hexylthiophene-2,5-diyl) (P3HT) and the soluble fullerene derivative [6,6]-phenyl C61-butyric acid methyl ester (PCBM) is a critical issue for polymer/fullerene-type organic photovoltaic cell applications. In this paper, P3HT thin films and P3HT:PCBM blend thin films were fabricated using the electrospray deposition method. The Raman spectral features of the samples were estimated using a two-peak fitting with a mixture of Gaussian and Lorentzian functions to determine their crystallinity parameters. Then, the relationship between the film morphology and crystallinity parameter was investigated. Homogenous P3HT thin films with high crystallinity parameters were obtained under dry/wet conditions, and a similar trend was found for P3HT:PCBM blend films.

Original languageEnglish
Pages (from-to)132-136
Number of pages5
JournalThin Solid Films
Volume554
DOIs
Publication statusPublished - 2014 Mar 3
Externally publishedYes

Keywords

  • Crystallinity parameter
  • Electrospray deposition
  • P3HT
  • Raman spectra analysis

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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