Film thickness dependency of the emission colors of PPE–PPVs in inkjet printed libraries
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Tekin, Emine; Wijlaars, Harald; Holder, Elisabeth; Egbe, Daniel A. M.; Schubert, Ulrich S.
- Abstract:
- The influence on the emission color of p-conjugated polymers
varying side chains, film thicknesses and thermal treatment
were investigated in a parallel fashion. The respective thickness
libraries of six alkoxy-substituted poly(p-phenyleneethynylene)-
alt-poly(p-phenylenevinylene)s (PPE–PPVs) were prepared by
inkjet printing in a controlled way. The optical properties of
the printed libraries were screened utilizing high-throughput
methods. It was found that the emission colors of the
investigated polymers strongly depend on the inter-chain
interactions which are increased with increasing film thickness
and influenced by the side chains. Moreover, upon annealing at
70 uC, white emission was observed from the printed films.
- Year:
- 2006
- Type of Publication:
- Article
- Journal:
- Journal of Materials Chemistry
- Volume:
- 16
- Pages:
- 4294 - 4298