Show simple item record

dc.contributor.authorKim, Jeong Yun
dc.contributor.authorGrossman, Jeffrey C.
dc.date.accessioned2016-05-18T15:44:36Z
dc.date.available2016-05-18T15:44:36Z
dc.date.issued2015-04
dc.date.submitted2015-03
dc.identifier.issn1530-6984
dc.identifier.issn1530-6992
dc.identifier.urihttp://hdl.handle.net/1721.1/102526
dc.description.abstractGraphene superlattices made with chemical functionalization offer the possibility of tuning both the thermal and electronic properties via nanopatterning of the graphene surface. Using classical and quantum mechanical calculations, we predict that suitable chemical functionalization of graphene can introduce peaks in the density of states at the band edge that result in a large enhancement in the Seebeck coefficient, leading to an increase in the room-temperature power factor of a factor of 2 compared to pristine graphene, despite the degraded electrical conductivity. Furthermore, the presence of patterns on graphene reduces the thermal conductivity, which when taken together leads to an increase in the figure of merit for functionalized graphene by up to 2 orders of magnitude over that of pristine graphene, reaching its maximum ZT ∼ 3 at room temperature according to our calculations. These results suggest that appropriate chemical functionalization could lead to efficient graphene-based thermoelectric materials.en_US
dc.language.isoen_US
dc.publisherAmerican Chemical Society (ACS)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/nl504257qen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceMIT web domainen_US
dc.titleHigh-Efficiency Thermoelectrics with Functionalized Grapheneen_US
dc.typeArticleen_US
dc.identifier.citationKim, Jeong Yun, and Jeffrey C. Grossman. “High-Efficiency Thermoelectrics with Functionalized Graphene.” Nano Lett. 15, no. 5 (May 13, 2015): 2830–2835.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Chemical Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.mitauthorKim, Jeong Yunen_US
dc.contributor.mitauthorGrossman, Jeffrey C.en_US
dc.relation.journalNano Lettersen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsKim, Jeong Yun; Grossman, Jeffrey C.en_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0003-1281-2359
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record