Rewritable photonic paper with hygroscopic salt solution as ink

  • Jianping Ge*
  • , James Goebl
  • , Le He
  • , Zhenda Lu
  • , Yadong Yin
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

249 Scopus citations

Abstract

(Figure Presented) Flexible photonic paper is fabricated through the instant magnetic assembly of Fe3O4@SiO2 colloids, followed by a rapid photopolymerization to fix the photonic structures inside the PEGDA matrix. Solutions of LiCl, MgCl2, or CaCl 2 are used as inks to print durable letters and patterns with color contrast based on the local swelling of the polymer matrix. The photonic paper is rewritable and benign to the environment as the ink marks can simply be removed by washing with water.

Original languageEnglish
Pages (from-to)4259-4264
Number of pages6
JournalAdvanced Materials
Volume21
Issue number42
DOIs
StatePublished - 13 Nov 2009
Externally publishedYes

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