Please use this identifier to cite or link to this item: https://doi.org/10.1126/science.1235547
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dc.titleStrong light-matter interactions in heterostructures of atomically thin films
dc.contributor.authorBritnell, L.
dc.contributor.authorRibeiro, R.M.
dc.contributor.authorEckmann, A.
dc.contributor.authorJalil, R.
dc.contributor.authorBelle, B.D.
dc.contributor.authorMishchenko, A.
dc.contributor.authorKim, Y.-J.
dc.contributor.authorGorbachev, R.V.
dc.contributor.authorGeorgiou, T.
dc.contributor.authorMorozov, S.V.
dc.contributor.authorGrigorenko, A.N.
dc.contributor.authorGeim, A.K.
dc.contributor.authorCasiraghi, C.
dc.contributor.authorCastro Neto, A.H.
dc.contributor.authorNovoselov, K.S.
dc.date.accessioned2014-10-16T09:42:18Z
dc.date.available2014-10-16T09:42:18Z
dc.date.issued2013
dc.identifier.citationBritnell, L., Ribeiro, R.M., Eckmann, A., Jalil, R., Belle, B.D., Mishchenko, A., Kim, Y.-J., Gorbachev, R.V., Georgiou, T., Morozov, S.V., Grigorenko, A.N., Geim, A.K., Casiraghi, C., Castro Neto, A.H., Novoselov, K.S. (2013). Strong light-matter interactions in heterostructures of atomically thin films. Science 340 (6138) : 1311-1314. ScholarBank@NUS Repository. https://doi.org/10.1126/science.1235547
dc.identifier.issn00368075
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/98041
dc.description.abstractThe isolation of various two-dimensional (2D) materials, and the possibility to combine them in vertical stacks, has created a new paradigm in materials science: heterostructures based on 2D crystals. Such a concept has already proven fruitful for a number of electronic applications in the area of ultrathin and flexible devices. Here, we expand the range of such structures to photoactive ones by using semiconducting transition metal dichalcogenides (TMDCs)/graphene stacks. Van Hove singularities in the electronic density of states of TMDC guarantees enhanced light-matter interactions, leading to enhanced photon absorption and electron-hole creation (which are collected in transparent graphene electrodes). This allows development of extremely efficient flexible photovoltaic devices with photoresponsivity above 0.1 ampere per watt (corresponding to an external quantum efficiency of above 30%).
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1126/science.1235547
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1126/science.1235547
dc.description.sourcetitleScience
dc.description.volume340
dc.description.issue6138
dc.description.page1311-1314
dc.description.codenSCIEA
dc.identifier.isiut000320320200039
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