Surface-relief gratings and stable birefringence inscribed using light of broad spectral range in supramolecular polymer-bisazobenzene complexes
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Surface-relief gratings and stable birefringence inscribed using light of broad spectral range in supramolecular polymer-bisazobenzene complexes. / Koskela, Jenni E.; Vapaavuori, Jaana; Hautala, Juho; Priimagi, Arri; Faul, Charl F J; Kaivola, Matti; Ras, Robin H A.
In: Journal of Physical Chemistry C, Vol. 116, No. 3, 26.01.2012, p. 2363-2370.Research output: Contribution to journal › Article › Scientific › peer-review
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T1 - Surface-relief gratings and stable birefringence inscribed using light of broad spectral range in supramolecular polymer-bisazobenzene complexes
AU - Koskela, Jenni E.
AU - Vapaavuori, Jaana
AU - Hautala, Juho
AU - Priimagi, Arri
AU - Faul, Charl F J
AU - Kaivola, Matti
AU - Ras, Robin H A
PY - 2012/1/26
Y1 - 2012/1/26
N2 - We report on phenol-pyridine hydrogen-bonded supramolecular polymer-azobenzene complexes made from a newly designed polar bisazobenzene chromophore. Because of the substitution with a polar nitro group, the chromophore possesses an extremely broad absorption band, spanning from near-UV up to 650 nm. Moreover, the inclusion of two methoxy groups to the central benzene ring prevents excessive chromophore-chromophore intermolecular interactions and provides advantageous size-related properties. Together, these features of the prepared photoresponsive polymer materials enable efficient inscription of (i) photoinduced birefringence with outstanding stability at various chromophore concentrations and (ii) surface-relief grating formation over a wide range of writing wavelengths from 405 to 633 nm. The photoresponsive behavior is compared to that of Disperse Yellow 7-based supramolecular complexes.
AB - We report on phenol-pyridine hydrogen-bonded supramolecular polymer-azobenzene complexes made from a newly designed polar bisazobenzene chromophore. Because of the substitution with a polar nitro group, the chromophore possesses an extremely broad absorption band, spanning from near-UV up to 650 nm. Moreover, the inclusion of two methoxy groups to the central benzene ring prevents excessive chromophore-chromophore intermolecular interactions and provides advantageous size-related properties. Together, these features of the prepared photoresponsive polymer materials enable efficient inscription of (i) photoinduced birefringence with outstanding stability at various chromophore concentrations and (ii) surface-relief grating formation over a wide range of writing wavelengths from 405 to 633 nm. The photoresponsive behavior is compared to that of Disperse Yellow 7-based supramolecular complexes.
UR - http://www.scopus.com/inward/record.url?scp=84856360260&partnerID=8YFLogxK
U2 - 10.1021/jp210706n
DO - 10.1021/jp210706n
M3 - Article
VL - 116
SP - 2363
EP - 2370
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 3
ER -