Hole transports in molecularly doped triphenylamine derivative

H. H. Fong, K. C. Lun, Shu Kong SO*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

130 Citations (Scopus)

Abstract

Hole mobilities of N′, N′-bis(3-methylphenyl)-(1, 1′-biphenyl)-4, 4′-diamine (TPD), TPD doped with 5, 6, 11, 12-tetraphenylnathacene (rubrene), and TPD doped with 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryle) 4H-pyran (DCM1) were measured by a time-of-flight (TOF) technique between 200 and 300 K. Pristine TPD has a hole mobility of about 2 × 10-3 cm2 V-1 s-1 at room temperature. The corresponding TOF time transients were non-dispersive. Upon doping, the hole mobility decreased slightly for rubrene-doped TPD, and sharply for DCM1-doped TPD. The TOF time transients remain non-dispersive for both kind of doped samples. The dependence of the mobility on electric field and temperature for undoped and doped TPD was investigated.

Original languageEnglish
Pages (from-to)407-413
Number of pages7
JournalChemical Physics Letters
Volume353
Issue number5-6
DOIs
Publication statusPublished - 26 Feb 2002

Scopus Subject Areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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