Abstract
Pyranine was used as a fluorescence probe to monitor the chemical evolution in-situ during thin film deposition by the dip coating process. The sensitivity of the pyranine luminescence to protonation/deprotonation effects was used to quantify changes in the water/alcohol ratio in real time within the depositing film as the substrate was withdrawn from the coating reservoir. The spatially resolved spectral results clearly showed that preferential evaporation of alcohol occurred with increasing distance from the reservoir and that the maximum water content reached rather high values near the drying line. Correlation of the luminescence results with the interference pattern of the drawn films allows the solvent composition in the film to be mapped as a function of film thickness. These experiments demonstrate for the first time that luminescent organic molecules may be applied to the processing science of sol-gel thin film deposition.
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Schroder, H., in Physics of Thin Films: Advances in Research and Development, edited by Haas, G. and Thun, R.E., 5, 87 (1969).
Uhlmann, D.R. and Rajendran, G.P., in Ultrastructure Processing of Advanced Ceramics, edited by Mackenzie, J.D. and Ulrich, D.R., (Wiley, New York, 1988). p. 241.
Dislich, H., J. Non-Cryst. Solids 73, 599 (1985).
Brinker, C.J., Hurd, A.J., Frye, G.C., Schunk, P.R., and Ashley, C.S., J. Ceram. Soc. Japan 99, 862 (1991).
Hurd, A.J. and Brinker, C.J., Mat. Res. Soc. Symp., 121, 731 (1988).
Dunn, B. and Zink, J.I., J. Mater. Chem. 1, 903 (1991).
Avnir, D., Braun, S., and Ottolenghi, M., in, ACS Symp. Series 499, Supramolecular Architecture, T. Bein, ed., (American Chemical Society, Washington, 1992) pp. 384–404.
Clement, N.R. and Gould, M., Biochemistry 20, 1534 (1981).
Wolfbeis, O.S., Fürlinger, E., Kroneis, H., and Marsoner, H., Fres. Z. Anal. Chem. 314, 119 (1983).
Pouxviel, J.C., Dunn, B., and Zink, J.I., J. Phys. Chem. 93, 2134 (1989).
Kaufman, V.R., Avnir, D., Pines-Rojanski, D., and Huppert, D., J. Non-Cryst. Solids 99, 379 (1988).
Hurd, A.J. and Brinker, C.J., Mat. Res. Soc. Symp., 180, 575 (1990).
Schunk, P.R., Hurd, A.J., and Brinker, C.J., in Proc. 44th Annual Conf. of the Society of Imaging Science and Technology, 1991.
Nishida, F., McKiernan, J.M., Dunn, B., Zink, J.I., Brinker, C.J., and Hurd, A.J., submitted for publication.
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Nishida, F., Dunn, B., Mckiernan, J.M. et al. In-situ fluorescence imaging of sol-gel thin film deposition. J Sol-Gel Sci Technol 2, 477–481 (1994). https://doi.org/10.1007/BF00486294
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DOI: https://doi.org/10.1007/BF00486294