Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 24 July 1992:
Vol. 257. no. 5069, pp. 508 - 511
DOI: 10.1126/science.257.5069.508
Prev | Table of Contents | Next

Articles

Surface Order and Stability of Langmuir-Blodgett Films

D. K. Schwartz 1, J. Garnaes 1, R. Viswanathan 1, and J. A. N. Zasadzinski 1

1 Department of Chemical and Nuclear Engineering, University of California, Santa Barbara, CA 93106

Angstrom-resolution atomic force microscope images of Langmuir-Blodgett monolayers and multilayers of cadmium arachidate in air and under water show a dramatic change from a disordered arrangement to a crystalline lattice by the addition or removal of a single layer of molecules. The disordered surface is less stable than the ordered one to mechanical stresses such as atomic force microscopy tip forces or at the air-water contact line during contact angle measurements. The difference in the degree of order in the alkyl chains is attributed to the strong attractive interaction between headgroups in the presence of the divalent cation.

Submitted on April 1, 1992
Accepted on May 29, 1992


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Stable Ordering in Langmuir-Blodgett Films.
D. Y. Takamoto, E. Aydil, J. A. Zasadzinski, A. T. Ivanova, D. K. Schwartz, T. Yang, and P. S. Cremer (2001)
Science 293, 1292-1295
   Abstract »    Full Text »    PDF »
Two-Dimensional Melting of an Anisotropic Crystal Observed at the Molecular Level.
H. D. Sikes and D. K. Schwartz (1997)
Science 278, 1604-1607
   Abstract »    Full Text »
Liquid to hexatic to crystalline order in Langmuir-Blodgett films.
R Viswanathan, L. Madsen, J. Zasadzinski, and D. Schwartz (1995)
Science 269, 51-54
   Abstract »    PDF »
Langmuir-Blodgett Films of a Functionalized Molecule with Cross-Sectional Mismatch Between Head and Tail.
J. Garnaes, N. B. Larsen, T. Bjornholm, M. Jorgensen, K. Kjaer, J. Als-Nielsen, J. F. Jorgensen, and J. A. Zasadzinski (1994)
Science 264, 1301-1304
   Abstract »    PDF »
Langmuir-Blodgett films.
J. Zasadzinski, R Viswanathan, L Madsen, J Garnaes, and D. Schwartz (1994)
Science 263, 1726-1733
   Abstract »    PDF »
Strained-layer van der Waals epitaxy in a Langmuir-Blodgett film.
R Viswanathan, J. Zasadzinski, and D. Schwartz (1993)
Science 261, 449-452
   Abstract »    PDF »
Van der Waals Epitaxial Growth of agr-Alumina Nanocrystals on Mica.
S. Steinberg, W. Ducker, G. Vigil, C. Hyukjin, C. Frank, M. Z. Tseng, D. R. Clarke, and J. N. Israelachvili (1993)
Science 260, 656-659
   Abstract »    PDF »
Structure of Langmuir-Blodgett Films of Disk-Shaped Molecules Determined by Atomic Force Microscopy.
J. Y. Josefowicz, N. C. Maliszewskyj, S. H. J. Idziak, P. A. Heiney, J. P. McCauley Jr., and A. B. Smith III (1993)
Science 260, 323-326
   Abstract »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)