Tungsten dichalcogenides as possible gas-sensing elements

V. A. Kuznetsov, A. Yu Ledneva, S. B. Artemkina, M. N. Kozlova, G. E. Yakovleva, A. S. Berdinsky, A. I. Romanenko, V. E. Fedorov

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

1 Citation (Scopus)

Abstract

Possible application of tungsten dichalcogenides as gas-sensing elements is discussed in this paper. The experimental results on sensitivity of pristine and niobium doped WS2 and WSe2 to acetone and ethanol gases are presented. Polycrystalline powder specimens were obtained by high temperature solid-state synthesis from the stoichiometric mixture of pure elements. Two types of samples were studied: 1) tablets pressed at 1.5 GPa to form bulk samples and 2) thin films prepared from 35% ethanol-water colloidal dispersions by their filtration onto membrane filters (pore diameter is 20 nm). The electrical resistances of the samples were shown to be increased in the presence of ethanol and acetone gases at room temperature, thereby revealing positive response to reducing gases.

Original languageEnglish
Title of host publication2017 40th International Convention on Information and Communication Technology, Electronics and Microelectronics, MIPRO 2017 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages48-52
Number of pages5
ISBN (Electronic)9789532330922
DOIs
Publication statusPublished - 10 Jul 2017
Event40th International Convention on Information and Communication Technology, Electronics and Microelectronics, MIPRO 2017 - Opatija, Croatia
Duration: 22 May 201726 May 2017

Conference

Conference40th International Convention on Information and Communication Technology, Electronics and Microelectronics, MIPRO 2017
CountryCroatia
CityOpatija
Period22.05.201726.05.2017

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