Multiple functionalization of tungsten disulfide inorganic nanotubes by covalently grafted conductive polythiophenes

Rivka Ben Ishay, Yifat Harel, Ronit Lavi, Jean Paul Lellouche

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

According to the "polymer growth from surface" concept, a variety of dual phase polythiophene-tungsten disulfide inorganic nanotube (PTh-WS2 INT) composites have been successfully prepared. This concept has made use of a covalent approach of liquid phase oxidative polymerization (LPP) directly from a WS2 INTs surface. In contrast to a simple bulk LPP, this oxidative polymerization variant enables an effective way to control the interfacial polythiophene-based layering. Various chemically stable nanometric polyTh adlayers have been generated towards morphologically well-defined core-shell WS2 INTs/polymer composites. The introduced free carboxylic acid groups, arising from the COOH-functionalized thiophene monomers, seriously improve the functional WS2 INTs dispersability, and thus, provide a versatile route for additional step surface modifications. This study has opened the attractive possibility of achieving high charge mobility via a two-dimensional transport through the WS2 INTs/polymer interface, combined with mobility anisotropy through the crystalline domains of grafted polymer shells.

Original languageEnglish
Pages (from-to)89585-89598
Number of pages14
JournalRSC Advances
Volume6
Issue number92
DOIs
StatePublished - 2016

Bibliographical note

Publisher Copyright:
© 2016 The Royal Society of Chemistry.

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