The effect of temperature and relative humidity on patterning of a ferroelectric polymer P(VDF-TrFE) via dip-pen nanolithography

Q. Tang, San-Qiang Shi, Li Min Zhou

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

This paper reports the effect of temperature and relative humidity on the patterning of a ferroelectric polymer poly(vinylidene fluoride-trifluorethylene) [P(VDF-TrFE 80:20)] onto a gold substrate via dip-pen nanolithography (DPN). It is found that temperature plays a significant role in this system, that the transport rate of P(VDF-TrFE) increases as the temperature increases, and that the diffusion length increases linearly with the square root of time at all of the measured temperatures. A critical temperature of 55°C is observed, above which, the transport rate of P(VDF-TrFE) increases significantly, and the interaction forces between the probe tip and P(VDF-TrFE) and between P(VDF-TrFE) and the gold substrate decrease. It is suggested that a phase transition at about 55°C may have happened in the thin film of P(VDF-TrFE). The influence of relative humidity on the transport rate of the hydrophobic P(VDF-TrFE) is small.
Original languageEnglish
Pages (from-to)57-67
Number of pages11
JournalInternational Journal of Nanoscience
Volume5
Issue number1
DOIs
Publication statusPublished - 1 Feb 2006

Keywords

  • Dip-pen nanolithography
  • Effect of temperature and relative humidity
  • Poly(vinylidene fluoride-trifluorethylene)

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Computer Science Applications
  • Electrical and Electronic Engineering

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