Circular dichroism and circularly polarized luminescence of highly oriented Langmuir-Blodgett films of poly(p-phenylene vinylene)

Authors
Marletta, A Goncalves, D Oliveira, ON Faria, RM Guimaraes, FEG
Citation
A. Marletta et al., Circular dichroism and circularly polarized luminescence of highly oriented Langmuir-Blodgett films of poly(p-phenylene vinylene), SYNTH METAL, 119(1-3), 2001, pp. 207-208
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
119
Issue
1-3
Year of publication
2001
Pages
207 - 208
Database
ISI
SICI code
0379-6779(20010315)119:1-3<207:CDACPL>2.0.ZU;2-6
Abstract
Langmuir-Blodgett films of a poly(p-phenylene vinylene) (PPV) precursor wer e prepared using an amphiphilic precursor, where the counter-ion chloride w as partially exchanged by a long chain dodecylbenzenesulfonate (DBS) ion. T hese LB-PPV films are strongly ordered along the dipping direction as demon strated by linear dichroism experiments using linearly polarized optical ab sorption and emission. The consequence of this anisotropy is a strong circu lar dichroism (100 mdeg) in the pi-pi* band and a circular polarization emi ssion with an asymmetry factor g(e)=0.84.