Abstract
We present a theoretical and experimental investigation of methoxy- and cyano-substituted p-phenylenevinylene model compounds. The compound containing both the alkoxy and cyano substitution exhibits a drop in the quantum yield relative to the singly-substituted alkoxy or alkyl compounds. In addition the emission spectrum loses structure and shifts to the red. Model calculations are performed on the chromophore and ab-initio CIS calculations show that the first excited state HOMO to LUMO transition is delocalised in methoxy-substituted compounds and localised on methoxy- and cyano-substituted compounds.
Original language | English |
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Pages (from-to) | 539-543 |
Number of pages | 5 |
Journal | Synthetic Metals |
Volume | 111 |
DOIs | |
Publication status | Published - Jun 1 2000 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Polymers and Plastics