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Proceedings Paper

Syntheses and characterizations of polymer/TaS2 layered nanocomposites
Author(s): Hiroyuki Enomoto; Masayuki Kawaguchi; Michael M. Lerner
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Paper Abstract

Polymer/TaS2 layered nanocomposites have been synthesized by using the exfoliation-adsorption technique. Single crystals of layered transition-metal dichalcogenides of 1T-TaS2, 2H-TaS2, and 4Hb-TaS2 were used as host materials. Poly(ethylene oxide) (PEO) and poly(ethylenimine) (PEI) were adopted as guest intercalants. As the exfoliation-adsorption method may require complicated procedures, optimum conditions to synthesize nanocomposites were estimated for each set of TaS2 polytypes and polymers. They have been characterized by powder X-ray diffraction (XRD) and electrical dc resistivity measurements. XRD patterns showed that all samples of the polymer/TaS2 layered nanocomposites contain organic polymer between all individual TaS2 sheets. Although 1T-, 2H-, and 4Hb-TaS2 polytypes are well known to show quite different temperature dependences of resistivity, the resistivities of all nanocomposites show similar temperature dependences.

Paper Details

Date Published: 4 December 2003
PDF: 8 pages
Proc. SPIE 5223, Physical Chemistry of Interfaces and Nanomaterials II, (4 December 2003); doi: 10.1117/12.504324
Show Author Affiliations
Hiroyuki Enomoto, Osaka Electro-Communication Univ. (Japan)
Masayuki Kawaguchi, Osaka Electro-Communication Univ. (Japan)
Michael M. Lerner, Oregon State Univ. (United States)

Published in SPIE Proceedings Vol. 5223:
Physical Chemistry of Interfaces and Nanomaterials II
Tianquan Lian; Hai-Lung Dai, Editor(s)

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