The photovoltaic effect in a platinum poly-yne

A. Köhler*, H. F. Wittmann, R. H. Friend, M. S. Khan, J. Lewis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

71 Citations (Scopus)

Abstract

We have carried out measurements of the photovoltaic effect in a platinum-containing poly-yne. A photocell was fabricated with the platinum poly-yne sandwiched between indium-tin oxide (ITO) and aluminium electrodes. A strong photoresponse was seen at the threshold of the singlet exciton absorption near 3.2 eV, with a quantum yield for carrier generation of up to 0.6%. This is comparable to that found in similar devices made with poly(phenylenevinylene) (PPV). It is known that the presence of the platinum atom gives very efficient crossover from singlet to triplet exciton, and we discuss here the effect of triplet excitons on the photogeneration of charge carriers. We also analyse the spectral response of the photocurrent in terms of charge carrier ranges.

Original languageEnglish
Pages (from-to)245-249
Number of pages5
JournalSynthetic Metals
Volume67
Issue number1-3
DOIs
Publication statusPublished - 1994

Keywords

  • Photovoltaic effect
  • Platinum
  • Poly-yne

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

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