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- Patel, AbhishekDepartment of physics, Veer Narmad South Gujarat University, Surat 395007, India,Veer Narmad South Gujarat Univ, Dept Phys, Surat 395007, India. (author)
High Thermoelectric Performance in Two-Dimensional Janus Monolayer Material WS-X (X = Se and Te)
- Article/chapterEnglish2020
Publisher, publication year, extent ...
- 2020-09-15
- NLM (Medline),2020
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:kth-288018
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-288018URI
- https://doi.org/10.1021/acsami.0c13960DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-425437URI
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- Language:English
- Summary in:English
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Notes
- QC 20201229
- In the present work, Janus monolayers WSSe and WSTe are investigated by combining first-principles calculations and semiclassical Boltzmann transport theory. Janus WSSe and WSTe monolayers show a direct band gap of 1.72 and 1.84 eV at K-points, respectively. These layered materials have an extraordinary Seebeck coefficient and electrical conductivity. This combination of high Seebeck coefficient and high electrical conductivity leads to a significantly large power factor. In addition, the lattice thermal conductivity in the Janus monolayer is found to be relatively very low as compared to the WS2 monolayer. This leads to a high figure of merit (ZT) value of 2.56 at higher temperatures for the Janus WSTe monolayer. We propose that the Janus WSTe monolayer could be used as a potential thermoelectric material due to its high thermoelectric performance. The result suggests that the Janus monolayer is a better candidate for excellent thermoelectric conversion.
Subject headings and genre
- NATURVETENSKAP Fysik Den kondenserade materiens fysik hsv//swe
- NATURAL SCIENCES Physical Sciences Condensed Matter Physics hsv//eng
- NATURVETENSKAP Kemi Materialkemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Materials Chemistry hsv//eng
- 2D Janus monolayer
- Boltzmann transport equation
- electronic properties
- lattice-thermal conductivity
- thermoelectric properties
- article
- calculation
- electric conductivity
- thermal conductivity
Added entries (persons, corporate bodies, meetings, titles ...)
- Singh, DeobratUppsala universitet,Materialteori(Swepub:uu)deosi321 (author)
- Sonvane, YogeshAdvanced Materials Lab, Department of Applied Physics, S.V. National Institute of Technology, Surat 395007, India,SV Natl Inst Technol, Dept Appl Phys, Adv Mat Lab, Surat 395007, India. (author)
- Thakor, P. B.Department of physics, Veer Narmad South Gujarat University, Surat 395007, India,Veer Narmad South Gujarat Univ, Dept Phys, Surat 395007, India. (author)
- Ahuja, Rajeev,1965-Uppsala universitet,KTH,Egenskaper,Materialteori,Royal Inst Technol KTH, Appl Mat Phys, Dept Mat Sci & Engn, S-10044 Stockholm, Sweden.(Swepub:uu)rajeeva (author)
- Department of physics, Veer Narmad South Gujarat University, Surat 395007, IndiaVeer Narmad South Gujarat Univ, Dept Phys, Surat 395007, India. (creator_code:org_t)
Related titles
- In:ACS Applied Materials and Interfaces: NLM (Medline)12:41, s. 46212-462191944-82441944-8252
Internet link
- https://doi.org/10.1021/acsami.0c13960Fulltext
- https://pubs.acs.org/doi/pdf/10.1021/acsami.0c13960
- https://uu.diva-portal.org/smash/get/diva2:1501344/FULLTEXT01.pdffulltext:print
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-288018
- https://doi.org/10.1021/acsami.0c13960
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-425437
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