Show simple item record

dc.contributor.authorKhan, AAen
dc.contributor.authorBin-Kamarudin, MAen
dc.contributor.authorKidambi, Piranen
dc.contributor.authorHofmann, Stephanen
dc.contributor.authorWilkinson, Timothyen
dc.contributor.authorQasim, Maliken
dc.date.accessioned2015-06-26T13:03:42Z
dc.date.available2015-06-26T13:03:42Z
dc.identifier.issn2046-2069
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/248735
dc.description.abstract© The Royal Society of Chemistry 2015. This work presents the interaction of self-assembled liquid crystalline (LC) unidimensional photonic structures on the surface of polycrystalline graphene. Further, this surface effect is studied through different substrate geometries in the test devices. Primarily, these devices are characterised through polarizing optical microscopy (POM) and their laser emission features in the dye-doped chiral systems. Then the conductive nature of graphene is utilized to apply external electric fields to the photonic medium and its effect is envisaged. These graphene-based devices demonstrate a unique result in polarizing optical micrographs and electro-optic responses which indicates the presence of multidirectional domain formations. Additionally, the LC band-edge lasing from graphene cells is found to be anisotropic and depends on the directionality of the optical pump. This work attempts to lay the foundation for the implementation of a new class of defused chiral nematic liquid crystal based devices e.g. optical filters, notch filters, colour reflectors, and light shutters and may add toward the knowledge base necessary in the substitution of Indium Tin Oxide (ITO) with graphene in traditional LC based display devices.
dc.description.sponsorshipThis work was carried out under the GRAPHTED project which is funded by the Engineering and Physical Sciences Research Council UK (project ref. EP/K016636/1, Grant No. EP/H047565/ 1). A. A. K. would like to thank the Higher Education of Pakistan (HEC), P. R. K. acknowledges Lindemann Trust Fellowship. A. A. K. and P. R. K. acknowledge the Cambridge Commonwealth, European and International Trust and for the nancial suppor
dc.language.isoenen
dc.publisherRSC
dc.source.uriEP/K016636/1
dc.source.uriEP/H047565/1
dc.titleGraphene and chiral nematic liquid crystals: A focus on lasingen
dc.typeArticle
prism.endingPage57443
prism.issueIdentifier71en
prism.publicationNameRSC Advancesen
prism.startingPage57437
prism.volume5en
dc.rioxxterms.funderEPSRC
dcterms.dateAccepted2015-06-22en
rioxxterms.versionofrecord10.1039/c5ra09415aen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2015-06-22en
dc.contributor.orcidHofmann, Stephan [0000-0001-6375-1459]
dc.contributor.orcidWilkinson, Timothy [0000-0001-8885-1288]
dc.identifier.eissn2046-2069
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/M016218/1)
pubs.funder-project-idEPSRC (EP/K016636/1)
pubs.funder-project-idEPSRC (EP/H047565/1)
cam.issuedOnline2015-07-01en
dc.identifier.urlhttps://pubs.rsc.org/en/content/articlelanding/2015/ra/c5ra09415a#!divAbstracten


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record