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Computational design of new organics dyes with improved solar absorbance for dye-sensitized solar cells

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Abstract

Two new organic dyes, WS-2.1 and WS-2.2—derivatives of the known dye WS-2—are computationally designed using a recently developed approach with a broad absorption peak at around 775 nm in acetonitrile for WS-2.2 versus 610 nm for WS-2. The red shift includes a significant contribution due to vibrations and is not reproduced by standard computational methods. The oxidation and reduction potentials of the dye render it well suited for use in dye-sensitized solar cells.

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References

  1. S. Manzhos, J. Nakazaki, H. Segawa, and K. Yamashita: Theoretical analysis of the absorption spectra of organic dyes differing by the conjugation sequence: illusion of negative solvatochromism. Proc. SPIE 8435, 84351K (2012).

    Article  Google Scholar 

  2. S. Manzhos, M. Komatsu, J. Nakazaki, H. Segawa, and K. Yamashita: Theoretical study of the origin of the large difference in the visible absorption spectra of organic dyes containing a thienylmethine unit and differing by the methine unit position. Proc. SPIE 8109, 810908 (2011).

    Article  Google Scholar 

  3. J. Liu, D. Zhou, F. Wang, F. Fabregat-Santiago, S.G. Miralles, X. Jing, J. Bisquert, and P. Wang: Joint photophysical and electrical analyses on the influence of conjugation order in D-π-A photosensitizers of mesoscopic titania solar cells. J. Phys. Chem. C 115, 14425 (2011).

    Article  CAS  Google Scholar 

  4. S. Manzhos, H. Segawa, and K. Yamahsita: Computational dye design by changing the conjugation order: failure of LR-TDDFT to predict relative excitation energies in organic dyes differing by the position of the methine unit. Chem. Phys. Lett. 527, 51 (2012).

    Article  CAS  Google Scholar 

  5. S. Manzhos, M. Komatsu, J. Nakazaki, H. Segawa, and K. Yamashita: Theoretical analysis of the solvatochromism of organic dyes differing by the conjugation sequence. J. Photonics Energy 2, 028001 (2012).

    Article  Google Scholar 

  6. W. Zhu, Y. Wu, S. Wang, W. Li, J. Chen, Z.-S. Wang, and H. Tia: Organic D-A-π-A solar cell sensitizers with improved stability and spectral response. Adv. Funct. Mater. 21, 756 (2011).

    Article  CAS  Google Scholar 

  7. Y. Wu, M. Marszalek, S.M. Zakeeruddin, Q. Zhang, H. Tian, M. Graetzel, and W. Zhu: High-conversion-efficiency organic dye-sensitized solar cells: molecular engineering on D–A–π-A featured organic indoline dyes. Energy Environ. Sci. 5, 8261 (2012).

    Article  CAS  Google Scholar 

  8. M.J.G. Peach, P. Benfield, T. Helgaker, and D.J. Tozer: Excitation energies in density functional theory: an evaluation and a diagnostic test. J. Chem. Phys. 128, 044118 (2008).

    Article  Google Scholar 

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Acknowledgments

This work was supported by the Ministry of Education of Singapore through Tier 1 AcRF grant (R-265-000-430-133).

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Correspondence to Sergei Manzhos.

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Manzhos, S. Computational design of new organics dyes with improved solar absorbance for dye-sensitized solar cells. MRS Communications 3, 37–39 (2013). https://doi.org/10.1557/mrc.2012.34

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  • DOI: https://doi.org/10.1557/mrc.2012.34

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