MoS<sub>2</sub> BAND GAP MODIFICATION UPON REPLACEMENT OF SULFUR ATOMS BY TELLURIUM ONES

The electron energy band gap in one monomolecular layer of molybdenum dichalcogenide MoS2 is reduced upon substitution of S atoms by Te ones from 1,84 to 1,17 eV in the case of MoTe2. Both MoTe2 and MoS2 compounds in a bulk phase are indirect-gap semiconductors while one monomolecular layer of MoS2-...

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Main Authors: A. V. Krivosheeva, V. L. Shaposhnikov, V. E. Borisenko
Format: Article
Language:Russian
Published: Educational institution «Belarusian State University of Informatics and Radioelectronics» 2019-06-01
Series:Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki
Subjects:
Online Access:https://doklady.bsuir.by/jour/article/view/676
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author A. V. Krivosheeva
V. L. Shaposhnikov
V. E. Borisenko
author_facet A. V. Krivosheeva
V. L. Shaposhnikov
V. E. Borisenko
author_sort A. V. Krivosheeva
collection DOAJ
description The electron energy band gap in one monomolecular layer of molybdenum dichalcogenide MoS2 is reduced upon substitution of S atoms by Te ones from 1,84 to 1,17 eV in the case of MoTe2. Both MoTe2 and MoS2 compounds in a bulk phase are indirect-gap semiconductors while one monomolecular layer of MoS2- x Tex compounds are transforming into direct-gap compounds for x < 0,5 or x > 1,5. The band gap dependence has a linear behavior in the case when the concentration of Te atoms is smaller than the concentration of S atoms.
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publisher Educational institution «Belarusian State University of Informatics and Radioelectronics»
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spelling doaj.art-08e5a2f324c7404b80b2110bf913f42e2023-03-13T07:33:16ZrusEducational institution «Belarusian State University of Informatics and Radioelectronics»Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki1729-76482019-06-010498101675MoS<sub>2</sub> BAND GAP MODIFICATION UPON REPLACEMENT OF SULFUR ATOMS BY TELLURIUM ONESA. V. Krivosheeva0V. L. Shaposhnikov1V. E. Borisenko2Белорусский государственный университет информатики и радиоэлектроникиБелорусский государственный университет информатики и радиоэлектроникиБелорусский государственный университет информатики и радиоэлектроникиThe electron energy band gap in one monomolecular layer of molybdenum dichalcogenide MoS2 is reduced upon substitution of S atoms by Te ones from 1,84 to 1,17 eV in the case of MoTe2. Both MoTe2 and MoS2 compounds in a bulk phase are indirect-gap semiconductors while one monomolecular layer of MoS2- x Tex compounds are transforming into direct-gap compounds for x < 0,5 or x > 1,5. The band gap dependence has a linear behavior in the case when the concentration of Te atoms is smaller than the concentration of S atoms.https://doklady.bsuir.by/jour/article/view/676molybdenum disulfidemonolayerelectronic structureband gap
spellingShingle A. V. Krivosheeva
V. L. Shaposhnikov
V. E. Borisenko
MoS<sub>2</sub> BAND GAP MODIFICATION UPON REPLACEMENT OF SULFUR ATOMS BY TELLURIUM ONES
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki
molybdenum disulfide
monolayer
electronic structure
band gap
title MoS<sub>2</sub> BAND GAP MODIFICATION UPON REPLACEMENT OF SULFUR ATOMS BY TELLURIUM ONES
title_full MoS<sub>2</sub> BAND GAP MODIFICATION UPON REPLACEMENT OF SULFUR ATOMS BY TELLURIUM ONES
title_fullStr MoS<sub>2</sub> BAND GAP MODIFICATION UPON REPLACEMENT OF SULFUR ATOMS BY TELLURIUM ONES
title_full_unstemmed MoS<sub>2</sub> BAND GAP MODIFICATION UPON REPLACEMENT OF SULFUR ATOMS BY TELLURIUM ONES
title_short MoS<sub>2</sub> BAND GAP MODIFICATION UPON REPLACEMENT OF SULFUR ATOMS BY TELLURIUM ONES
title_sort mos sub 2 sub band gap modification upon replacement of sulfur atoms by tellurium ones
topic molybdenum disulfide
monolayer
electronic structure
band gap
url https://doklady.bsuir.by/jour/article/view/676
work_keys_str_mv AT avkrivosheeva mossub2subbandgapmodificationuponreplacementofsulfuratomsbytelluriumones
AT vlshaposhnikov mossub2subbandgapmodificationuponreplacementofsulfuratomsbytelluriumones
AT veborisenko mossub2subbandgapmodificationuponreplacementofsulfuratomsbytelluriumones