Enhanced polymer light-emitting diode performance using a crosslinked-network electron-blocking interlayer

He Yan, Brian J. Scott, Qinglan Huang, Tobin J. Marks

Research output: Contribution to journalArticle

101 Citations (Scopus)


The electron-blocking properties of poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) (PEDOT-PSS), hole-transport layer (HTL) at the HTL/EML was analyzed. It was found that the electron-blocking capacity of PEDOT-PSS was significantly weaker than that of standard triarylamine electron-blockers. The triarylamine structures were modified to produce a family of crosslinkable, electron-blocking siloxanes yielding insoluble, adherent, crosslinked, triarylamine networks which functioned as efficient electron-blocking interlayers (EBLs) for multilayers polymer-based light emitting diodes (PLED). The results show that insertion of these EBLs between PLED, HTL and EML components can dramatically enhanced the device performance.

Original languageEnglish
Pages (from-to)1948-1953
Number of pages6
JournalAdvanced Materials
Issue number21
Publication statusPublished - Nov 4 2004


ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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