Search results for "Van der Waals epitaxy"

showing 2 items of 2 documents

Fast-Response Single-Nanowire Photodetector Based on ZnO/WS 2 Core/Shell Heterostructures

2018

This work was supported by the Latvian National Research Program IMIS2 and ISSP project for Students and Young Researchers Nr. SJZ/2016/6. S.P. is grateful to the ERA.Net RUS Plus WATERSPLIT project no. 237 for the financial support. S.V. is grateful for partial support by the Estonian Science Foundation grant PUT1689.

Materials scienceNanostructureScanning electron microscopeNanowirePhotodetector02 engineering and technology010402 general chemistry01 natural sciences7. Clean energysymbols.namesake:NATURAL SCIENCES:Physics [Research Subject Categories]General Materials Sciencecore/shell nanowirestransitional metal chalcogenidesvan der Waals epitaxybusiness.industryHeterojunction021001 nanoscience & nanotechnology0104 chemical sciencesTransmission electron microscopy1D/1D heterostructuressymbolsphotodetectorsOptoelectronicsCharge carrier0210 nano-technologybusinessRaman spectroscopyACS Applied Materials & Interfaces
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Impact of kinetics on the growth of GaN on graphene by plasma-assisted molecular beam epitaxy.

2019

International audience; The growth of GaN on graphene by molecular beam epitaxy was investigated. The most stable epitaxial relationship, i.e. [00.1]-oriented grains, is obtained at high temperature and N-rich conditions, which match those for nanowire growth. Alternatively, at moderate temperature and Ga-rich conditions, several metastable orientations are observed at the nucleation stage, which evolve preferentially towards [00.1]-oriented grains. The dependence of the nucleation regime on growth conditions was assigned to Ga adatom kinetics. This statement is consistent with the calculated graphene/GaN in-plane lattice coincidence and supported by a combination of transmission electron m…

PhotoluminescenceMaterials scienceNucleationNanowireBioengineering02 engineering and technology010402 general chemistryEpitaxy01 natural scienceslaw.inventionGaNsymbols.namesakelawGeneral Materials ScienceElectrical and Electronic EngineeringGrapheneMechanical EngineeringVan der Waals epitaxyGeneral Chemistry021001 nanoscience & nanotechnology0104 chemical sciencesMechanics of MaterialsChemical physicsTransmission electron microscopysymbols[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]0210 nano-technologyRaman spectroscopyMolecular beam epitaxyNanotechnology
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