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Enhanced Thermopower of Saturated Molecules by Noncovalent Anchor-Induced Electron Doping of Single-Layer Graphene Electrode
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Sohyun | - |
dc.contributor.author | Kim, Hwa Rang | - |
dc.contributor.author | Kim, Juhee | - |
dc.contributor.author | Hong, Byung-Hee | - |
dc.contributor.author | Yoon, Hyo Jae | - |
dc.date.accessioned | 2022-04-18T04:11:34Z | - |
dc.date.available | 2022-04-18T04:11:34Z | - |
dc.date.created | 2021-11-05 | - |
dc.date.issued | 2021-10 | - |
dc.identifier.citation | Advanced Materials, Vol.33 No.41, p. 2103177 | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.other | 147007 | - |
dc.identifier.uri | https://hdl.handle.net/10371/178063 | - |
dc.description.abstract | Enhancing thermopower is a key goal in organic and molecular thermoelectrics. Herein, it is shown that introducing noncovalent contact with a single-layer graphene (SLG) electrode improves the thermopower of saturated molecules as compared to the traditional gold-thiolate covalent contact. Thermoelectric junction measurements with a liquid-metal technique reveal that the value of Seebeck coefficient in large-area junctions based on n-alkylamine self-assembled monolayers (SAMs) on SLG is increased up to fivefold compared to the analogous junction based on n-alkanethiolate SAMs on gold. Experiments with Raman spectroscopy and field-effect transistor analysis indicate that such enhancements benefit from the creation of new in-gap states and electron doping through noncovalent interaction between the amine anchor and the SLG electrode, which leads to a reduced energy offset between the Fermi level and the transport channel. This work demonstrates that control of interfacial bonding nature in molecular junctions improves the Seebeck effect in saturated molecules. | - |
dc.language | 영어 | - |
dc.publisher | WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim | - |
dc.title | Enhanced Thermopower of Saturated Molecules by Noncovalent Anchor-Induced Electron Doping of Single-Layer Graphene Electrode | - |
dc.type | Article | - |
dc.contributor.AlternativeAuthor | 홍병희 | - |
dc.identifier.doi | 10.1002/adma.202103177 | - |
dc.citation.journaltitle | Advanced Materials | - |
dc.identifier.wosid | 000690686100001 | - |
dc.identifier.scopusid | 2-s2.0-85113680900 | - |
dc.citation.number | 41 | - |
dc.citation.startpage | 2103177 | - |
dc.citation.volume | 33 | - |
dc.identifier.sci | 000690686100001 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Hong, Byung-Hee | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | SELF-ASSEMBLED MONOLAYERS | - |
dc.subject.keywordPlus | THERMOELECTRIC PROPERTIES | - |
dc.subject.keywordPlus | THERMAL CONDUCTANCE | - |
dc.subject.keywordPlus | RAMAN-SPECTROSCOPY | - |
dc.subject.keywordPlus | LENGTH DEPENDENCE | - |
dc.subject.keywordPlus | LARGE-AREA | - |
dc.subject.keywordPlus | CHEMISTRY | - |
dc.subject.keywordPlus | METAL | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordAuthor | EGaIn | - |
dc.subject.keywordAuthor | graphene | - |
dc.subject.keywordAuthor | molecular thermoelectrics | - |
dc.subject.keywordAuthor | Seebeck effect | - |
dc.subject.keywordAuthor | self-assembled monolayers | - |
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