Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Infrared Spectroscopic Study of α-Cyano-4-hydroxycinnamic Acid on Nanocrystalline TiO2 Surfaces: Anchoring of Metal-Free Organic Dyes at Photoanodes in Dye-Sensitized Solar Cells

  • Published : 2010.01.20
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Abstract

Adsorption structures of the self-assembled thin films of $\alpha$-cyano-4-hydroxycinnamic acid (CHCA) anchoring on $TiO_2$ surfaces have been studied by using temperature-dependent diffuse reflectance infrared Fourier-transform (DRIFT) spectroscopy. From the presence of the strong $\nu(COO^-)$ band at ~1390 $cm^{-1}$ along with the disappearance of the OH bands in the carboxylic acid group in the DRIFT spectra at room temperature, CHCA appeared to adsorb onto $TiO_2$ surfaces as a carboxylate form. The absence of the out-of-plane benzene ring modes of CHCA in the DRIFT spectra suggests a rather vertical orientation of CHCA on $TiO_2$. Above ~220$ ^{\circ}C$, CHCA seemed to start to thermally degrade on $TiO_2$ surfaces referring from the disappearance of most vibrational modes in the DRIFT spectra, whereas the $\nu$(C ≡ N) bands were found to remain relatively conspicuous as the temperature increased even up to ~460$^{\circ}C$.

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References

  1. Gratzel, M. Nature 2001, 414, 338. https://doi.org/10.1038/35104607
  2. Gratzel, M. Acc. Chem. Res. 2009, 42, 1788. https://doi.org/10.1021/ar900141y
  3. Anderson, N. A.; Lian, T. Annu. Rev. Phys. Chem. 2005, 56, 491. https://doi.org/10.1146/annurev.physchem.55.091602.094347
  4. Perez Leon, C.; Kador, L.; Peng, B.; Thelakkat, M. J. Phys. Chem. B 2006, 110, 8723. https://doi.org/10.1021/jp0561827
  5. Mishra, A.; Fischer, M. K. R.; Bäuerle, P. G. M. Angew. Chem. Edit. Engl. 2009, 48, 2474. https://doi.org/10.1002/anie.200804709
  6. Park, J. P.; Kim, S. K.; Park, J. Y.; Ok, K. M.; Shim, I. W. Bull. Korean Chem. Soc. 2009, 30, 853. https://doi.org/10.5012/bkcs.2009.30.4.853
  7. Cho, H. G.; Cheong, B. S. Bull. Korean Chem. Soc. 2009, 30, 479. https://doi.org/10.5012/bkcs.2009.30.2.479
  8. Kim, S.; Ihm, K.; Kang, T.-H.; Hwang, S.; Joo, S.-W. Surf. Interf. Anal. 2005, 37, 294. https://doi.org/10.1002/sia.2019
  9. Kang, D. S.; Kwon, K.-S.; Kim, S. I.; Gong, M.-S.; Seo, S. S. A.; Noh, T. W.; Joo, S.-W. Appl. Spectrosc. 2005, 59, 1136. https://doi.org/10.1366/0003702055012492
  10. Lim, J. K.; Yoo, B. K.; Yi, W.; Hong, S.; Paik, H.-J.; Chun, K.; Kim, S. K.; Joo, S.-W. J. Mat. Chem. 2006, 16, 2374. https://doi.org/10.1039/b602165d
  11. Agrell, H. G.; Lindgren, J.; Hagfeldt, A. Solar Energy 2003, 75, 169. https://doi.org/10.1016/S0038-092X(03)00248-2
  12. Larichev, Y. V. J. Phys. Chem. C 2008, 112, 14776. https://doi.org/10.1021/jp803742g
  13. Perez Leon, C.; Kador, L.; Peng, B.; Thelakkat, M. J. Phys. Chem. B 2005, 109, 5783. https://doi.org/10.1021/jp044946x
  14. Zhang, Z.; Zakeeruddin, S. M.; O'Regan, B. C.; Humphry-Baker, R.; Grätzel, M. J. Phys. Chem. B 2005, 109, 21818. https://doi.org/10.1021/jp054305h
  15. Lim, J. K.; Lee, Y.; Lee, K.; Gong, M.; Joo, S.-W. Chem. Lett. 2007, 36, 1226. https://doi.org/10.1246/cl.2007.1226
  16. Varsanyi, G. Assignments for Vibrational Spectra of Seven Hundred Benzene Derivatives; John Wiley & Sons: New York, 1974.
  17. Boczar, M.; Szczeponek, K.; Wójcik, M. Z.; Paluszkiewicz, C. J. Mol. Struct. 2004, 700, 39. https://doi.org/10.1016/j.molstruc.2004.03.024
  18. Montgomery, W.; Zaug, J. M.; Howard, W. M.; Goncharov, A. F.; Crowhurst, J. C.; Jeanloz, R. J. Phys. Chem. B 2005, 109, 19443. https://doi.org/10.1021/jp051967y
  19. Florio, G. M.; Sibert III, E. L.; Zwier, T. S. Faraday Discuss. 2001, 118, 315. https://doi.org/10.1039/b009594j
  20. Joo, S.-W. Bull. Kor. Chem. Soc. 2007, 28, 1405. https://doi.org/10.5012/bkcs.2007.28.8.1405
  21. Schatz, G. C.; Van Duyne, R. P. In Handbook of Vibrational Spectroscopy; Chalmers, J. M., Griffiths, P. R., Eds.; John Wiley & Sons: New York, 2002; Vol. 1, p 759.
  22. Chen, K.-S.; Liu, W.-H.; Wang, Y.-H.; Lai, C.-H.; Chou, P.-T.; Lee, G.-H.; Chen, K.; Chen, H.-Y.; Chi, Y.; Tung, F.-C. Adv. Funct. Mater. 2007, 17, 2964. https://doi.org/10.1002/adfm.200600985

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