Ultrafast Light-Controlled Growth of Silver Nanoparticles for Direct Plasmonic Color Printing

Yangxi Zhang, Qiang Zhang, Xia Ouyang, Dang Yuan Lei, A. Ping Zhang, Hwa Yaw Tam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

26 Citations (Scopus)

Abstract

A precision photoreduction technology for the ultrafast high-precision light-controlled growth of silver nanoparticles for printing plasmonic color images is presented. Ultraviolet (UV) patterns with about a million pixels are generated to temporally and spatially regulate the photoreduction of silver salts to precisely create around a million clusters of distinct silver nanoparticles on a titanium dioxide (TiO2)-capped quartz substrate. The silver nanoparticle-TiO2-quartz structure exhibits a Fano-like reflection spectrum, whose spectral dip can be tuned by the dimension of the silver nanoparticles for plasmonic color generation. This technology allows the one-step production of multiscale engineered large-area plasmonic substrates without the use of either nanostructured templates or additional nanofabrication processes and thus offers an approach to plasmonic engineering for a myriad of applications ranging from structural color decoration to plasmonic microdevices and biosensors.

Original languageEnglish
Pages (from-to)9913-9921
Number of pages9
JournalACS Nano
Volume12
Issue number10
DOIs
Publication statusPublished - 23 Oct 2018

Keywords

  • color printing
  • Fano resonance
  • photoreduction
  • plasmonics
  • silver nanoparticles

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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