Please use this identifier to cite or link to this item:
|Title:||Strong light-matter interactions in heterostructures of atomically thin films||Authors:||Britnell, L.
Castro Neto, A.H.
|Issue Date:||2013||Citation:||Britnell, 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||Abstract:||The 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%).||Source Title:||Science||URI:||http://scholarbank.nus.edu.sg/handle/10635/98041||ISSN:||00368075||DOI:||10.1126/science.1235547|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on May 17, 2019
WEB OF SCIENCETM
checked on May 8, 2019
checked on May 14, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.