Electrically conductive polymeric photonic crystals

Yusuke Imai, Christopher Edward Finlayson, P Goldberg-Oppenheimer, Qibin Zhao, Peter Spahn, David R. E. Snoswell, Andrew I. Haines, G. Peter Hellmann, Jeremy J. Baumberg

Research output: Contribution to journalArticlepeer-review

21 Citations (SciVal)

Abstract

Electrically conductive polymeric 3D photonic crystals are prepared by the shear ordering of composites consisting of monodisperse core-shell polymer spheres and single-walled carbon nanotubes (SWNTs). Strong iridescent colour indicates that the highly ordered opaline structures are not disrupted by the presence of the conductive nanotube networks. Thermal annealing leads to a significant increase in the overall electrical conductivity of thin-film samples yielding DC conductivities of 10−4 S cm−1, with percolation thresholds of less than 0.4 wt% of SWNT. Such composites with open networks of carbon nanotubes held apart by lattices of hard spheres, give combined conductive properties and structural colour effects, within a tuneable viscoelastic medium, with many potential functional applications
Original languageEnglish
Pages (from-to)6280-6290
JournalSoft Matter
Volume8
Issue number23
Early online date08 May 2012
DOIs
Publication statusPublished - 2012

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