Ultrahigh electrical conductivity in solution-sheared polymeric transparent films

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Brian J. Worfolk - , Stanford University (Author)
  • Sean C. Andrews - , Stanford University (Author)
  • Steve Park - , TUD Dresden University of Technology (Author)
  • Julia Reinspach - , Stanford University (Author)
  • Nan Liu - , Stanford University (Author)
  • Michael F. Toney - , Stanford University (Author)
  • Stefan C.B. Mannsfeld - , SLAC National Accelerator Laboratory (Author)
  • Zhenan Bao - , Stanford University (Author)

Abstract

With consumer electronics transitioning toward flexible products, there is a growing need for high-performance, mechanically robust, and inexpensive transparent conductors (TCs) for optoelectronic device integration. Herein, we report the scalable fabrication of highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) thin films via solution shearing. Specific control over deposition conditions allows for tunable phase separation and preferential PEDOT backbone alignment, resulting in record-high electrical conductivities of 4,600 ± 100 S/cm while maintaining high optical transparency. High-performance solution-sheared TC PEDOT:PSS films were used as patterned electrodes in capacitive touch sensors and organic photovoltaics to demonstrate practical viability in optoelectronic applications.

Details

Original languageEnglish
Pages (from-to)14138-14143
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America : PNAS
Volume112
Issue number46
Publication statusPublished - 29 Oct 2015
Peer-reviewedYes
Externally publishedYes

Keywords

Research priority areas of TU Dresden

ASJC Scopus subject areas

Keywords

  • PEDOT:PSS, Solution shearing, Transparent conductor

Library keywords