Journal article
Optical spectroscopies of excited states in poly(para phenylene vinyleae)
Synthetic metals, Vol.101(1-3), pp.226-229
05/01/1999
DOI: 10.1016/S0379-6779(98)00214-8
Abstract
We have applied a multitude of continuous wave and pulsed optical spectroscopies to thin films of unsubstituted poly (para-phenylene vinylene) (PPV) with photoluminescence quantum efficiency ≥30%. Laser action in thin films, microdisks and microrings has been demonstrated. The threshold for lasing is comparable to other PPV derivatives Electroabsorption unambiguosly shows that the mAg state is located at 3.4 eV. At higher photon energies no large polarizability of excited states could be found. The photoinduced absorption spectrum which contains both polaron and triplet excitations is very weak, showing a relatively defect free polymer.
Details
- Title: Subtitle
- Optical spectroscopies of excited states in poly(para phenylene vinyleae)
- Creators
- R. Österbacka - Åbo Akademi UniversityM. Shkunov - University of UtahD. Chinn - University of UtahM. Wohlgenannt - University of UtahM. DeLong - University of UtahJ. Viner - University of UtahZ.V. Vardeny - University of Utah
- Resource Type
- Journal article
- Publication Details
- Synthetic metals, Vol.101(1-3), pp.226-229
- Publisher
- Elsevier B.V
- DOI
- 10.1016/S0379-6779(98)00214-8
- ISSN
- 0379-6779
- eISSN
- 1879-3290
- Language
- English
- Date published
- 05/01/1999
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984428805902771
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