Temperature dependence of current-voltage characteristics of poly(p-pyridine) light-emitting diodes

JM Lupton, Ifor David William Samuel, AP Monkman

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We investigate the dependence of the current-voltage characteristics of single layer light-emitting diodes fabricated with the electron transporting polymer poly(p-pyridine) (PPY). The characteristics are found to vary with temperature and are compared with results obtained for MEH-PPV devices. It is found that the barrier to injection deduced from UPS measurements is not the current limiting factor in these devices but that space charge effects resulting from n-type doping of the material give rise to the characteristics observed.

Original languageEnglish
Pages (from-to)1079
Number of pages1079
JournalSynthetic Metals
Volume102
Publication statusPublished - Jun 1999

Keywords

  • poly(p-pyridine)
  • light-emitting diodes
  • transport measurements
  • ITO
  • PHOTOELECTRON-SPECTROSCOPY
  • POLY(2,2'-BIPYRIDINE-5,5'-DIYL)
  • POLY(PYRIDINE-2,5-DIYL)
  • POLYMERS

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