Ferroelectric nanodot formation from spin-coated poly(vinylidene fluoride-co-trifluoroethylene) films and their application to organic solar cells

Yoon Young Choi, Kyungwon Kwak, Ji Won Seo, Moonkyu Park, Haemin Paik, Jung Yong Lee, Jongin Hong, Kwangsoo No

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We demonstrated a facile route to the preparation of self-assembled poly(vinylidene fluoride-co-trifluoroethylene) [P(VDF-TrFE)] nanodots from spin-coated thin films. We found that the initial film thickness would play an important role in the formation of such P(VDF-TrFE) nanodots. Interestingly, the electric dipoles of such nanodots were self-aligned toward the bottom electrode and their ferroelectric properties were determined by using piezoresponse force microscopy. In addition, the self-polarized ferroelectric nanostructures were introduced to small molecular organic photovoltaic devices and allowed for enhancing the short circuit current density (Jsc) from 9.4 mA/cm2 to 10.2 mA/cm2 and the power conversion efficiency from 2.37% to 2.65%.

Original languageEnglish
Article number41230
JournalJournal of Applied Polymer Science
Volume132
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1
Externally publishedYes

Keywords

  • Coatings
  • Films
  • Morphology
  • Surfaces and interfaces

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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