Enhancement of electro-optical response of ferroelectric liquid crystal: the role of graphene quantum dots

Veeresh Kumar, Ajay Kumar, Ashok M. Biradar, G. B. Reddy, Divya Sachdev, Renu Pasricha

Research output: Contribution to journalArticlepeer-review

Abstract

We present a pioneer study depicting a significant improvement in the photoluminescence (PL) intensity and display of an expeditious electro-optic response of ferroelectric liquid crystal (FLC) when doped with graphene quantum dots (GQDs). Significant threefold enhancement in PL intensity of GQDs/FLC composite material can be ascribed to the additive combination of emissions from GQDs and FLCs. Furthermore, promptness in electro-optical response by a factor of 34% can be attributed to the lowering of rotational viscosity of the FLC material due to the incorporation of GQDs. These results would certainly be helpful in realisation of highly luminescent and faster generation of LC systems.

Original languageEnglish (US)
Pages (from-to)1719-1725
Number of pages7
JournalLiquid Crystals
Volume41
Issue number12
DOIs
StatePublished - Dec 2 2014

Keywords

  • Raman
  • graphene quantum dots
  • photoluminescence
  • response time

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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