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Article: Power factor enhancement for few-layered graphene films by molecular attachments

TitlePower factor enhancement for few-layered graphene films by molecular attachments
Authors
Issue Date2011
Citation
Journal of Physical Chemistry C, 2011, v. 115, n. 5, p. 1780-1785 How to Cite?
AbstractIn this work, we prepared few-layered graphene (FLG) films and investigated their thermoelectric properties. It was found that pristine FLG films showed a low thermopower of ∼40 μV/K. We further processed these FLG films by attaching them with 1,1′-azobis(cyanocyclohexane) or 1,3,6,8- pyrenetetrasulfonic acid. The thermopower of FLG films with attached molecules increased to above ∼180 μV/K. Such enhancement in the thermopower led to an increase in their power factor by more than 4.5 times. Theoretical investigation indicated that a potential difference can be introduced between the outer layer and inner layer of FLG films upon molecule attachments. Simulation of the thermopower based on Kubo's formula provided qualitative support to our experimental results. © 2011 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/298520
ISSN
2023 Impact Factor: 3.3
2023 SCImago Journal Rankings: 0.957
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorSim, Daohao-
dc.contributor.authorLiu, Dayong-
dc.contributor.authorDong, Xiaochen-
dc.contributor.authorXiao, Ni-
dc.contributor.authorLi, Sean-
dc.contributor.authorZhao, Yang-
dc.contributor.authorLi, Lain Jong-
dc.contributor.authorYan, Qingyu-
dc.contributor.authorHng, Huey Hoon-
dc.date.accessioned2021-04-08T03:08:41Z-
dc.date.available2021-04-08T03:08:41Z-
dc.date.issued2011-
dc.identifier.citationJournal of Physical Chemistry C, 2011, v. 115, n. 5, p. 1780-1785-
dc.identifier.issn1932-7447-
dc.identifier.urihttp://hdl.handle.net/10722/298520-
dc.description.abstractIn this work, we prepared few-layered graphene (FLG) films and investigated their thermoelectric properties. It was found that pristine FLG films showed a low thermopower of ∼40 μV/K. We further processed these FLG films by attaching them with 1,1′-azobis(cyanocyclohexane) or 1,3,6,8- pyrenetetrasulfonic acid. The thermopower of FLG films with attached molecules increased to above ∼180 μV/K. Such enhancement in the thermopower led to an increase in their power factor by more than 4.5 times. Theoretical investigation indicated that a potential difference can be introduced between the outer layer and inner layer of FLG films upon molecule attachments. Simulation of the thermopower based on Kubo's formula provided qualitative support to our experimental results. © 2011 American Chemical Society.-
dc.languageeng-
dc.relation.ispartofJournal of Physical Chemistry C-
dc.titlePower factor enhancement for few-layered graphene films by molecular attachments-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jp1103609-
dc.identifier.scopuseid_2-s2.0-79952681101-
dc.identifier.volume115-
dc.identifier.issue5-
dc.identifier.spage1780-
dc.identifier.epage1785-
dc.identifier.eissn1932-7455-
dc.identifier.isiWOS:000286868600055-
dc.identifier.issnl1932-7447-

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