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dc.contributor.authorBalakrishnan, Nilanthy
dc.contributor.authorBeton, Peter
dc.contributor.authorPatane, Amalia
dc.contributor.otherEaves, Laurence
dc.contributor.otherMakarovskiy, Oleg
dc.contributor.otherStaddon, Christopher
dc.contributor.otherSmith, E.F.
dc.description.abstractWe demonstrate that β-In2Se3 layers with thickness ranging from 2.8 – 100 nm can be grown on SiO2/Si, mica and graphite using a physical vapour transport method. The β-In2Se3 layers are chemically stable at room temperature and exhibit a blue-shift of the photoluminescence emission when the layer thickness is reduced, due to strong quantum confinement of carriers by the physical boundaries of the material. The layers are characterized using Raman spectroscopy and X-ray diffraction from which we confirm lattice constants c = 28.310.05 Å and a = 3.990.02 Å. In addition, these layers show high photoresponsivity of up to ~ 2×103 A/W at a wavelength of 633 nm, with rise and decay times of 0.6 ms and 2.5 ms, respectively, confirming the potential of the as-grown layers for high sensitivity, fast photodetectors.en_UK
dc.publisherUniversity of Nottinghamen_UK
dc.subject.lcshNanostructured materials -- Optical propertiesen_UK
dc.subject.lcshLattice dynamicsen_UK
dc.titleQuantum confinement and photoresponsivity of β-In2Se3 nanosheets grown by physical vapour transporten_UK
dc.subject.jacsPhysical sciences::Materials scienceen_UK
dc.subject.jacsPhysical sciences::Physics::Chemical physics, Solid-state physicsen_UK
dc.subject.lcQ Science::QC Physics::QC170 Atomic physics. Constitution and properties of matteren_UK
uon.divisionUniversity of Nottingham, UK Campus::Faculty of Science::School of Physics and Astronomyen_UK
uon.funder.controlledFunders::Engineering & Physical Sciences Research Councilen_UK
uon.datatypeImages acquired using scanning probe microscopy, datasets of spectroscopic measurementsen_UK
uon.collectionmethodAsylum MFP3D Atomic Force Microscope, Horiba LABRAM sptromicroscopeen_UK
uon.rightscontactUniversity of Nottinghamen_UK

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