Syntheses and characterizations of polymer/TaS2 layered nanocomposites

Hiroyuki Enomoto; Masayuki Kawaguchi; Michael M. Lerner

doi:10.1117/12.504324

4 December 2003 Syntheses and characterizations of polymer/TaS₂ layered nanocomposites

Hiroyuki Enomoto, Masayuki Kawaguchi, Michael M. Lerner

Proceedings Volume 5223, Physical Chemistry of Interfaces and Nanomaterials II; (2003) https://doi.org/10.1117/12.504324
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

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.

Citation Download Citation

Hiroyuki Enomoto, Masayuki Kawaguchi, and Michael M. Lerner "Syntheses and characterizations of polymer/TaS₂ layered nanocomposites", Proc. SPIE 5223, Physical Chemistry of Interfaces and Nanomaterials II, (4 December 2003); https://doi.org/10.1117/12.504324

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