DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Gil-Ho | ko |
dc.contributor.author | Hwang, Deok-Hyun | ko |
dc.contributor.author | Woo, Seong-Ihl | ko |
dc.date.accessioned | 2013-03-09T18:42:44Z | - |
dc.date.available | 2013-03-09T18:42:44Z | - |
dc.date.created | 2012-04-03 | - |
dc.date.created | 2012-04-03 | - |
dc.date.issued | 2012-01 | - |
dc.identifier.citation | PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.14, no.10, pp.3530 - 3536 | - |
dc.identifier.issn | 1463-9076 | - |
dc.identifier.uri | http://hdl.handle.net/10203/97175 | - |
dc.description.abstract | Carbon nanotubes (CNTs), either single wall carbon nanotubes (SWNTs) or multiwall carbon nanotubes (MWNTs), can improve the thermoelectric properties of poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS), but it requires addition of 30-40 wt% CNTs. We report that the figure of merit (ZT) value of PEDOT:PSS thin film for thermoelectric property is increased about 10 times by incorporating 2 wt% of graphene. PEDOT:PSS thin films containing 1, 2, 3 wt% graphene are prepared by solution spin coating method. X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy analyses identified the strong pi-pi interactions which facilitated the dispersion between graphene and PEDOT:PSS. The uniformly distributed graphene increased the interfacial area by 2-10 times as compared with CNT based on the same weight. The power factor and ZT value of PEDOT:PSS thin film containing 2 wt% graphene was 11.09 mu W mK(-2) and 2.1 x 10(-2), respectively. This enhancement arises from the facilitated carrier transfer between PEDOT: PSS and graphene as well as the high electron mobility of graphene (200 000 cm(2) V-1 s(-1)). Furthermore the porous structure of the thin film decreases the thermal conductivity resulting in a high ZT value, which is higher by 20% than that for a PEDOT: PSS thin film containing 35 wt% SWNTs. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | CARBON NANOTUBE BUNDLES | - |
dc.subject | CONDUCTIVITY ENHANCEMENT | - |
dc.subject | SULFONATE) FILM | - |
dc.subject | POLYANILINE | - |
dc.subject | COMPOSITES | - |
dc.subject | TRANSPORT | - |
dc.subject | DEVICES | - |
dc.subject | SHEETS | - |
dc.subject | ACID | - |
dc.title | Thermoelectric properties of nanocomposite thin films prepared with poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) and graphene | - |
dc.type | Article | - |
dc.identifier.wosid | 000300314100031 | - |
dc.identifier.scopusid | 2-s2.0-84861540209 | - |
dc.type.rims | ART | - |
dc.citation.volume | 14 | - |
dc.citation.issue | 10 | - |
dc.citation.beginningpage | 3530 | - |
dc.citation.endingpage | 3536 | - |
dc.citation.publicationname | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | - |
dc.identifier.doi | 10.1039/c2cp23517j | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Woo, Seong-Ihl | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | CARBON NANOTUBE BUNDLES | - |
dc.subject.keywordPlus | CONDUCTIVITY ENHANCEMENT | - |
dc.subject.keywordPlus | SULFONATE) FILM | - |
dc.subject.keywordPlus | POLYANILINE | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | DEVICES | - |
dc.subject.keywordPlus | SHEETS | - |
dc.subject.keywordPlus | ACID | - |
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