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Investigation of the Temperature-Dependent Surface Morphology of p-Sexiphenyl Thin Films on KCl(001)

Published online by Cambridge University Press:  15 March 2011

E.J. Kintzel Jr
Affiliation:
MARTECH and the Department of Physics and Chemistry, Florida State University Tallahassee, FL 32306, U.S.A.
E.S. Gillman
Affiliation:
Jefferson Lab, 12000 Jefferson Avenue Newport News, VA 23606, U.S.A.
J.G. Skofronick
Affiliation:
MARTECH and the Department of Physics and Chemistry, Florida State University Tallahassee, FL 32306, U.S.A.
S.A. Safron
Affiliation:
MARTECH and the Department of Physics and Chemistry, Florida State University Tallahassee, FL 32306, U.S.A.
D.-M. Smilgies
Affiliation:
Cornell High Energy Synchrotron Source, Cornell University Ithaca, NY 14853, U.S.A.
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Abstract

Investigation into the temperature dependence of the surface morphology of a thin film of p-sexiphenyl (p-6P) on KCl(001) was carried out by atomic force microscopy (AFM). An individual p-6P film was prepared by vapor deposition at a base pressure of ∼1x10-8 mbar onto a KCl(001) surface which was maintained at 323 K during deposition. The AFM was carried out in a separate vacuum chamber, in situ, at a base pressure of ∼1x10-6 mbar. The p-6P film was cooled and maintained at discrete temperatures in the range from 294 K to 128 K as AFM measurements were performed. Similar surface morphologies are observed for film temperatures maintained at 294, 264, and 227 K, and 188 and 128 K during the AFM measurements. AFM images for the first set of film temperatures (294 - 227 K) indicate the presence of block-like islands of p-6P, with well-defined crystallite boundaries. AFM images of the films in the second set (188 and 128 K) indicate the presence of triangular wedge-shaped structures of p-6P preferentially aligned nearly in the direction of the [110]KCl. Comparison of these wedge-shaped structures at the indicated film temperatures reveals they are rotated by approximately 180° with respect to each other. Subsequent images of the surface of the p-6P film captured again at 294 K, after the final 128 K temperature study was completed, revealed the same surface features found for the initial 294 K film temperature.

Type
Research Article
Copyright
Copyright © Materials Research Society 2002

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References

REFERENCES

1. Service, R.F., Science 273, 878 (1996).Google Scholar
2. Forrest, S.R., Chem. Rev. 97, 1793 (1997).Google Scholar
3. Baker, K.N., Fratini, A.V., Resch, T., Adams, W.W., Socci, E.P., and Farmer, B.L., Polymer 34, 1571 (1993).Google Scholar
4. Mikami, T. and Yanagi, H., Appl. Phys. Lett. 73, 563 (1998).Google Scholar
5. Kintzel, E.J. Jr, Smilgies, D.-M., Skofronick, J.G., Safron, S.A., Winkle, D.H. Van, Trelenberg, T.W., Akhadov, E.A., and Flaherty, F., J. Vac. Sci. Technol. A 19(4), 1270 (2001).Google Scholar
6. Yoshida, Y., Takeguchi, H., Hanada, T., Tanigaki, N., Han, E.-M., and Yase, K., J. Cryst. Growth 198/199, 923 (1999).Google Scholar