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나노 구조 물리 연구단
나노구조물리 연구단
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Sensitive photo-thermal response of graphene oxide for mid-infrared detection

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dc.contributor.authorJung Jun Bae-
dc.contributor.authorJung Hyun Yoon-
dc.contributor.authorSooyeon Jeong-
dc.contributor.authorByoung Hee Moon-
dc.contributor.authorJoong Tark Han-
dc.contributor.authorHee Jin Jeong-
dc.contributor.authorGeon-Woong Lee-
dc.contributor.authorHa Ryong Hwang-
dc.contributor.authorYoung Hee Lee-
dc.contributor.authorSeung Yol Jeong-
dc.contributor.authorSeong Chu Lim-
dc.date.available2016-01-07T09:10:24Z-
dc.date.created2015-10-14-
dc.date.issued2015-10-
dc.identifier.issn2040-3364-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/1855-
dc.description.abstractThis study characterizes the effects of incident infrared (IR) radiation on the electrical conductivity of graphene oxide (GO) and examines its potential for mid-IR detection. Analysis of the mildly reduced GO (m-GO) transport mechanism near room temperature reveals variable range hopping (VRH) for the conduction of electrons. This VRH behavior causes the m-GO resistance to exhibit a strong temperature dependence, with a large negative temperature coefficient of resistance of approximately −2 to −4% K−1. In addition to this hopping transport, the presence of various oxygen-related functional groups within GO enhances the absorption of IR radiation significantly. These two GO material properties are synergically coupled and provoke a remarkable photothermal effect within this material; specifically, a large resistance drop is exhibited by m-GO in response to the increase in temperature caused by the IR absorption. The m-GO bolometer effect identified in this study is different from that exhibited in vanadium oxides, which require added gold-black films that function as IR absorbers owing to their limited IR absorption capability.-
dc.languageENG-
dc.publisherROYAL SOC CHEMISTRY-
dc.titleSensitive photo-thermal response of graphene oxide for mid-infrared detection-
dc.typeArticle-
dc.type.rimsA-
dc.identifier.wosid000361834100019-
dc.identifier.scopusid2-s2.0-84942693876-
dc.description.wostc14-
dc.date.tcdate2018-10-01-
dc.date.scptcdate2018-10-01-
dc.contributor.affiliatedAuthorJung Jun Bae-
dc.contributor.affiliatedAuthorYoung Hee Lee-
dc.identifier.bibliographicCitationNANOSCALE, v.7, no.38, pp.15695 - 15700-
dc.description.scptc14-
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Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
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