Graphene based flexible electrochromic devices

dc.citation.epage6484-8en_US
dc.citation.spage6484-1en_US
dc.citation.volumeNumber4en_US
dc.contributor.authorPolat, E. O.en_US
dc.contributor.authorBalci, O.en_US
dc.contributor.authorKocabas, C.en_US
dc.date.accessioned2015-07-28T12:02:17Z
dc.date.available2015-07-28T12:02:17Z
dc.date.issued2014-10-01en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractGraphene emerges as a viable material for optoelectronics because of its broad optical response and gate-tunable properties. For practical applications, however, single layer graphene has performance limits due to its small optical absorption defined by fundamental constants. Here, we demonstrated a new class of flexible electrochromic devices using multilayer graphene (MLG) which simultaneously offers all key requirements for practical applications; high-contrast optical modulation over a broad spectrum, good electrical conductivity and mechanical flexibility. Our method relies on electro-modulation of interband transition of MLG via intercalation of ions into the graphene layers. The electrical and optical characterizations reveal the key features of the intercalation process which yields broadband optical modulation up to 55 per cent in the visible and near-infrared. We illustrate the promises of the method by fabricating reflective/transmissive electrochromic devices and multi-pixel display devices. Simplicity of the device architecture and its compatibility with the roll-to-roll fabrication processes, would find wide range of applications including smart windows and display devices. We anticipate that this work provides a significant step in realization of graphene based optoelectronics.en_US
dc.description.provenanceMade available in DSpace on 2015-07-28T12:02:17Z (GMT). No. of bitstreams: 1 8183.pdf: 1786552 bytes, checksum: 514e38a7d20daa6d74335aa36a2cef3f (MD5)en
dc.identifier.doi10.1038/srep06484en_US
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/11693/12637
dc.language.isoEnglishen_US
dc.publisherNature Publishing Groupen_US
dc.relation.isversionofhttp://dx.doi.org/10.1038/srep06484en_US
dc.source.titleScientific Reportsen_US
dc.subjectElectrical Controlen_US
dc.subjectOptical Modulatoren_US
dc.subjectPhotoresponseen_US
dc.subjectPhotodetectoren_US
dc.titleGraphene based flexible electrochromic devicesen_US
dc.typeArticleen_US

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