Thermoelectric Response in Single Quintuple Layer Bi2Te3

Handle URI:
http://hdl.handle.net/10754/623159
Title:
Thermoelectric Response in Single Quintuple Layer Bi2Te3
Authors:
Sharma, S.; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
Because Bi2Te3 belongs to the most important thermoelectric materials, the successful exfoliation of a single quintuple layer has opened access to an interesting two-dimensional material. For this reason, we study the thermoelectric properties of single quintuple layer Bi2Te3 by considering both the electron and phonon transport. On the basis of first-principles density functional theory, the electronic and phononic contributions are calculated by solving Boltzmann transport equations. The dependence of the lattice thermal conductivity on the phonon mean free path is evaluated along with the contributions of the acoustic and optical branches. We find that the thermoelectric response is significantly better for p- than for n-doping. By optimizing the carrier concentration, at 300 K, a ZT value of 0.77 is achieved, which increases to 2.42 at 700 K.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Sharma S, Schwingenschlögl U (2016) Thermoelectric Response in Single Quintuple Layer Bi2Te3. ACS Energy Letters 1: 875–879. Available: http://dx.doi.org/10.1021/acsenergylett.6b00289.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Energy Letters
Issue Date:
5-Oct-2016
DOI:
10.1021/acsenergylett.6b00289
Type:
Article
ISSN:
2380-8195; 2380-8195
Sponsors:
The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acsenergylett.6b00289
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorSharma, S.en
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2017-04-13T11:50:58Z-
dc.date.available2017-04-13T11:50:58Z-
dc.date.issued2016-10-05en
dc.identifier.citationSharma S, Schwingenschlögl U (2016) Thermoelectric Response in Single Quintuple Layer Bi2Te3. ACS Energy Letters 1: 875–879. Available: http://dx.doi.org/10.1021/acsenergylett.6b00289.en
dc.identifier.issn2380-8195en
dc.identifier.issn2380-8195en
dc.identifier.doi10.1021/acsenergylett.6b00289en
dc.identifier.urihttp://hdl.handle.net/10754/623159-
dc.description.abstractBecause Bi2Te3 belongs to the most important thermoelectric materials, the successful exfoliation of a single quintuple layer has opened access to an interesting two-dimensional material. For this reason, we study the thermoelectric properties of single quintuple layer Bi2Te3 by considering both the electron and phonon transport. On the basis of first-principles density functional theory, the electronic and phononic contributions are calculated by solving Boltzmann transport equations. The dependence of the lattice thermal conductivity on the phonon mean free path is evaluated along with the contributions of the acoustic and optical branches. We find that the thermoelectric response is significantly better for p- than for n-doping. By optimizing the carrier concentration, at 300 K, a ZT value of 0.77 is achieved, which increases to 2.42 at 700 K.en
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acsenergylett.6b00289en
dc.titleThermoelectric Response in Single Quintuple Layer Bi2Te3en
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalACS Energy Lettersen
kaust.authorSharma, S.en
kaust.authorSchwingenschlögl, Udoen
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