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1
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M. Içli-Özkut et al. / Organic Electronics 12 (2011) 1505–1511
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[
[
[
[
(
4
. Conclusion
1
In conclusion, the design and synthesis of novel materi-
als (5 and P5) with pyrene scaffold were described. Inter-
estingly, both of these systems were emissive in both
solution and the solid states. It is assumed that P units
[
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on the core structure hinder
p–p stacking thus rendering
the emission in the solid state. Furthermore, a novel solu-
ble PEC, P5, which has a specific optical band gap (2.2 eV)
to reflect (or transmit) the yellow color in the neutral state
was introduced herein to extend the repertoire of available
colors of processable PECs (blue, green and black etc.),
which are essential for full color displays [49]. The electro-
chemical and thermal stability of the polymer indicated
that P5 is a promising candidate for electrochromic appli-
cations. Work in this line is currently underway in our
laboratories.
[16] P.M. Beaujuge, J.R. Reynolds, Color control in
polymers for use in electrochromic devices, Chem. Rev. 110 (2010)
68–320.
p-conjugated organic
2
[
[
[
17] C.M. Amb, A.L. Dyer, J.R. Reynolds, Navigating the color palette of
solution-processable electrochromic polymers, Chem. Mater. (2011)
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highly transmissive switching polymer electrochromes via the
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19] M. Içli-Özkut, S. Atak, A.M. Önal, A. Cihaner, A blue to highly
transmissive soluble electrochromic polymer based on poly (3,4-
propylenedioxyselenophene) with a high stability and coloration
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20] M. Içli, M. Pamuk, F. Algi, A.M. Önal, A. Cihaner, Donor-acceptor
Acknowledgements
polymer electrochromes with tunable colors and performance,
Chem. Mater. 22 (2010) 4034–4044.
The authors gratefully acknowledge financial support
from the Scientific and Technical Research Council of Tur-
key (TUBITAK) and European Cooperation in Science and
Technology (Grant No. COST-108T959). Z. Ö. is indebted
toTUBITAK for the scholarship.
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