Time-resolved luminescence measurements in poly(p-phenylenevinylene)

I. D W Samuel, B. Crystall, Gary Rumbles, P. L. Burn, A. B. Holmes, R. H. Friend

Research output: Contribution to journalArticle

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Abstract

We report time-resolved measurements of photoluminescence in poly(p-phenylenevinylene) (PPV) and related polymers, using the technique of time-correlated single photon counting. We find the photoluminescence is longer lived in less-conjugated samples, and that this accounts for the higher efficiency of light-emitting devices made from less-conjugated materials. At low temperatures, the luminescence is longer lived, and at 77 K there is an interesting red shift of the emission during the first nanoseconds after photoexcitation. We consider that this arises from migration of excitons to more-conjugated (and therefore lower energy) regions of the sample.

Original languageEnglish
Pages (from-to)281-288
Number of pages8
JournalSynthetic Metals
Volume54
Issue number1-3
DOIs
Publication statusPublished - Mar 1 1993

Fingerprint

Luminescence
Photoluminescence
luminescence
photoluminescence
Photoexcitation
Time measurement
photoexcitation
Excitons
red shift
counting
Polymers
Photons
time measurement
excitons
polymers
photons
Temperature
poly(4-phenylenevinylene)
energy
LDS 751

ASJC Scopus subject areas

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

Cite this

Samuel, I. D. W., Crystall, B., Rumbles, G., Burn, P. L., Holmes, A. B., & Friend, R. H. (1993). Time-resolved luminescence measurements in poly(p-phenylenevinylene). Synthetic Metals, 54(1-3), 281-288. https://doi.org/10.1016/0379-6779(93)91071-9

Time-resolved luminescence measurements in poly(p-phenylenevinylene). / Samuel, I. D W; Crystall, B.; Rumbles, Gary; Burn, P. L.; Holmes, A. B.; Friend, R. H.

In: Synthetic Metals, Vol. 54, No. 1-3, 01.03.1993, p. 281-288.

Research output: Contribution to journalArticle

Samuel, IDW, Crystall, B, Rumbles, G, Burn, PL, Holmes, AB & Friend, RH 1993, 'Time-resolved luminescence measurements in poly(p-phenylenevinylene)', Synthetic Metals, vol. 54, no. 1-3, pp. 281-288. https://doi.org/10.1016/0379-6779(93)91071-9
Samuel, I. D W ; Crystall, B. ; Rumbles, Gary ; Burn, P. L. ; Holmes, A. B. ; Friend, R. H. / Time-resolved luminescence measurements in poly(p-phenylenevinylene). In: Synthetic Metals. 1993 ; Vol. 54, No. 1-3. pp. 281-288.
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