Birefringence Creation by Solar Light - A New Approach to the Development of Solar Cells with Azobenzene Materials

Pedro Farinha, Susana Sério, Paulo A. Ribeiro, Maria Raposo

Abstract

The conversion of solar energy into electricity is one of the viable alternatives regarding energy demand and sustainability. This work shows that novel energy storage devices can be developed by using materials containing highly polarizable molecules as poly{1-(4-(3-carboxy-4-hydroxy-phenylazo) benzenesulfonamido) -1,2-ethanediyl, sodium salt} (PAZO). In the present case, layer-by-layer (LbL) of PAZO and poly(allylamine hydrochloride) (PAH) thin films were prepared and the creation and relaxation of photoinduced birefringence were characterized. These results demonstrate that birefringence can be induced in these films by visible light with a spectrum similar to solar light. Comparing the characteristics parameters of birefringence creation and relaxation, it was seen that the writing birefringence characteristic time, with a value of 1.4 hours, is quite slower than the obtained with laser beam but the relaxation characteristic time is of the order of 7 days. In addition, the birefringence value is proportional to the amount of azo-groups in the sample. These preliminary results allows us conclude that solar devices based in that principle can be studied, namely, the conversion of the oriented dipoles stored energy in power.

References

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Paper Citation


in Harvard Style

Farinha P., Sério S., Ribeiro P. and Raposo M. (2016). Birefringence Creation by Solar Light - A New Approach to the Development of Solar Cells with Azobenzene Materials . In Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology - Volume 1: AOMat, (PHOTOPTICS 2016) ISBN 978-989-758-174-8, pages 365-368. DOI: 10.5220/0005843103650368


in Bibtex Style

@conference{aomat16,
author={Pedro Farinha and Susana Sério and Paulo A. Ribeiro and Maria Raposo},
title={Birefringence Creation by Solar Light - A New Approach to the Development of Solar Cells with Azobenzene Materials},
booktitle={Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology - Volume 1: AOMat, (PHOTOPTICS 2016)},
year={2016},
pages={365-368},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005843103650368},
isbn={978-989-758-174-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology - Volume 1: AOMat, (PHOTOPTICS 2016)
TI - Birefringence Creation by Solar Light - A New Approach to the Development of Solar Cells with Azobenzene Materials
SN - 978-989-758-174-8
AU - Farinha P.
AU - Sério S.
AU - Ribeiro P.
AU - Raposo M.
PY - 2016
SP - 365
EP - 368
DO - 10.5220/0005843103650368