Enhanced intra-aggregate charge separation from binary excitons in mixed J-aggregates of cyanine dyes

Journal of Physical Chemistry B

Volumn 110, Issue 48, 2006, Pages 24480-24485

  Kawasaki, Mitsuo ^a   Aoyama, Satoshi ^a   Kozawa, Eishi ^a  

^a KYOTO UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

BINARY MIXTURES; DYES; PHASE SEPARATION; PHOTOCURRENTS;

CYANINE DYES; MOLECULAR EXCITONS; MOLECULAR ORBITALS; SUBSTRATE-INDUCED QUENCHING;

EXCITONS;

EID: 33846114712     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp065598x     Document Type: Article

References (20)

1. Eisfeld, A,; Briggs, J. S. Chem. Phys. 2002, 281, 61.
2. Potma, E. O.; Wiersma, D. A. J. Chem. Phys. 1998, 108, 4894.
3. Spano, F. C.; Kuklinski, J. R.; Mukamel, S. Phys. Rev. Lett. 1990, 65, 211.
4. Fidder, H.; Knoester, J.; Wiersma, D. A. Chem. Phys. Lett. 1990, 171, 529.
5. Kobayashi, T.; Matsumoto, S.; Aoyama, T.; Wada, T. Thin Solid Filma 2006, 509, 145.
6. West, W.; Oilman, P. B. In The Theory of the Photographic Process, 4th ed.; James, T. H., Ed.; Macmillan: New York, 1977; Chapter 10.
7. Frenkel, J. Phys. Rev. 1931, 37, 1276.
8. Kelbauskas, L.; Bagdonas, S.; Dietel, W.; Rotomskis, R. J. Lumin. 2003, 101, 253.
9. Maskasky, J. E. Langmuir 1991, 7, 407.
10. Kawasaki, M.; Ishii, H. J. Imaging Sci. Technol. 1995, 39, 210.
11. Janssens, G.; Touhari, F.; Gerritsen, J. W.; Kempen, H. V.; Callant, P.; Deroover, G.; Vandenbroucke, D. Chem. Phys. Lett. 2001, 344, 1.
12. Yonezawa, Y.; Miyama, T.; Ishizawa, H. J. Imaging Sci. Technol. 1995, 39, 331.
13. Kawasaki, M.; Inokuma, H. J. Phys. Chem. B 1999, 103, 1233.
14. Kawasaki, M.; Yoshidome, D.; Sato, T.; Iwasaki, M. J. Electroanal. Chem. 2003, 543, 1.
15. Kawasaki, M.; Uchiki, H. Surf. Sci. 1997, 588, L1121.
16. Kawasaki, M.; Sato, T.; Yoshimoto, T. Langmuir 2000, 16, 5409.
17. This extraction gives a dilute mixed monomer solution. The corresponding two dyes have similar but yet distinguishable monomer absorption bands, so that the overall absorption spectrum can be deconvoluted into two overlapping monomer bands. This in turn allows determination of not only the total dye coverage but also the acutal dye mixing ratio in the binary J-aggregate.
18. Magde, D.; Wong, R.; Seybold, P. G. Photochem. Photobiol. 2002, 75, 327.
19. Atkins, P. W.; Friedman, R. S. In Molecular Quantum Mechanics, 3rd ed.; Oxford University Press: Oxford, U.K., 1997; p 510.
20. As shown in Figure 4, the layered J-aggregate on the Au(111) electrode has a sufficiently large light absorptance more than 1% even in the short-wavelength absorption tail, so that our fluorescence spectrometer could detect a weak fluorescence signal corresponding to F-QE down to ∼0.001.