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Proceedings Paper

Microfabricated electroactive carbon nanotube actuators
Author(s): Arti Ahluwalia; Ray H. Baughman; Danilo De Rossi; Alberto Mazzoldi; Mario Tesconi; Alessandro Tognetti; Giovanni Vozzi
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Paper Abstract

A variety of microfabrication techniques have been developed at the University of Pisa. They are based either on pressure or piston actuated microsyringes or modified ink-jet printers. This work present the results of a study aimed at fabricating carbon nanotube (NT) actuators using micro-syringes. In order to prevent the nanotubes from aggregating into clumps, they were enclosed in a partially cross-linked polyvinylalcohol - polyallylamine matrix. After sonication the solution remained homogenously dispersed for about 40 minutes, which was sufficient time for deposition. Small strips of NT, about 5 mm across and 15 mm long were deposited. Following deposition, the films were baked at 80 degree(s)C and their thickness, impedance and mechanical resistance measured. The results indicate that 50 minutes of baking time is sufficient to give a constant resistivity of 1.12 x 10-2 (Omega) m per layer similar to a typical semiconductor, and each layer has a thickness of about 6 micrometers .

Paper Details

Date Published: 16 July 2001
PDF: 7 pages
Proc. SPIE 4329, Smart Structures and Materials 2001: Electroactive Polymer Actuators and Devices, (16 July 2001); doi: 10.1117/12.432647
Show Author Affiliations
Arti Ahluwalia, Univ. of Pisa (Italy)
Ray H. Baughman, Honeywell Technology Ctr. (United States)
Danilo De Rossi, Univ. of Pisa (Italy)
Alberto Mazzoldi, Univ. of Pisa (Italy)
Mario Tesconi, Univ. of Pisa (Italy)
Alessandro Tognetti, Univ. of Pisa (Italy)
Giovanni Vozzi, Univ. of Pisa (Italy)


Published in SPIE Proceedings Vol. 4329:
Smart Structures and Materials 2001: Electroactive Polymer Actuators and Devices
Yoseph Bar-Cohen, Editor(s)

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