Charge transport and injection to phenylamine-based hole transporters for OLEDs applications

Shu Kong SO*, Shing C. Tse, Ka L. Tong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

We studied the hole injection and transporting properties of four phenylamine-based hole-transporters useful for organic light-emitting diodes. The hole-transporting properties were examined in details by time-of-flight technique whereas their hole-injecting properties by current-voltage measurements and dark-current space-charge-limited-current technique (DI-SCLC). All materials were found to exhibit essentially trap-free hole transports. We discovered that a conducting polymeric anode, PEDOT:PSS, can act effectively as an Ohmic contact for hole injection into the PA compounds for DI-SCLC experiments.

Original languageEnglish
Pages (from-to)225-232
Number of pages8
JournalIEEE/OSA Journal of Display Technology
Volume3
Issue number2
DOIs
Publication statusPublished - Jun 2007

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

User-Defined Keywords

  • Carrier mobility
  • Charge transport
  • Organic light-emitting diodes (OLEDs)
  • Phenylamines

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