High-efficiency, solution-processed, multilayer phosphorescent organic light-emitting diodes with a copper thiocyanate hole-injection/hole-transport layer

Ajay Perumal*, Hendrik Faber, Nir Yaacobi-Gross, Pichaya Pattanasattayavong, Claire Burgess, Shrawan Jha, Martyn A. McLachlan, Paul N. Stavrinou, Thomas D. Anthopoulos, Donal D.C. Bradley

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

134 Scopus citations

Abstract

(Graph Presented). Copper thiocyanate (CuSCN) is introduced as a holeinjection/ holetransport layer (HIL/HTL) for solutionprocessed organic lightemitting diodes (OLEDs). The OLED devices reported here with CuSCN as HIL/HTL perform significantly better than equivalent devices fabricated with a PEDOT:PSS HIL/HTL, and solutionprocessed, phosphorescent, smallmolecule, green OLEDs with maximum luminance ≥10 000 cd m-2, maximum luminous efficiency ≤50 cd A-1, and maximum luminous power efficiency ≤55 lm W-1 are demonstrated.

Original languageEnglish (US)
Pages (from-to)93-100
Number of pages8
JournalAdvanced Materials
Volume27
Issue number1
DOIs
StatePublished - Nov 10 2015

Keywords

  • copper thiocyanate
  • solution-processed PHOLEDs
  • wide bandgap p-type semiconductor

ASJC Scopus subject areas

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

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