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Molecularly Self-Assembled Actuators and Devices

[+] Author Affiliations
R. Claus

Virginia Polytechnic Institute and State University, Blacksburg, VA

T. Zeng, K. Huie, J. Huie, J. Mecham

NanoSonic Inc., Blacksburg, VA

F. Arregui, I. Matias

Universidad Publica de Navarra, Pamplona, Spain

Paper No. IMECE2002-33941, pp. 269-277; 9 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Adaptive Structures and Materials Systems
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Aerospace Division
  • ISBN: 0-7918-3625-8 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


Piezoelectric thin films incorporating poly(sodium 4-styrenesolfonate) (PSS) and poly(diallyldimethylammonium chloride) (PDDA) were synthesized using the electrostatic self-assembly (ESA) process. The ESA-processed PSS/PDDA film is a layer-by-layer laminated structure, which exhibits piezoelectric response directly, with a piezoelectric coefficient d33 = 6.0 pC/N and without poling treatment. It is assumed that the self-assembly process may play a very important role in molecular alignment resulting in net polarization in the layer-by-layer structured ultrathin film, a process quite different from that used to form conventional piezoelectric films. Further study concerning the principles governing the novel ESA processing of piezoelectric films and self-assembled materials, sensors and actuators is on-going.

Copyright © 2002 by ASME



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