Search results for "Mechanical resonance"

showing 3 items of 3 documents

Determination of Young’s modulus of Sb2S3 nanowires by in situ resonance and bending methods

2016

In this study we address the mechanical properties of Sb2S3 nanowires and determine their Young’s modulus using in situ electric-field-induced mechanical resonance and static bending tests on individual Sb2S3 nanowires with cross-sectional areas ranging from 1.1·104 nm2 to 7.8·104 nm2. Mutually orthogonal resonances are observed and their origin explained by asymmetric cross section of nanowires. The results obtained from the two methods are consistent and show that nanowires exhibit Young’s moduli comparable to the value for macroscopic material. An increasing trend of measured values of Young’s modulus is observed for smaller thickness samples.

General Physics and AstronomyModulusYoung's modulusMechanical properties02 engineering and technologyBendingmechanical propertieslcsh:Chemical technology01 natural scienceslcsh:TechnologyFull Research Paperlaw.inventionIn situlawNanotechnologyGeneral Materials Sciencelcsh:TP1-1185Young’s modulusComposite materiallcsh:Science010302 applied physicsOptical properties021001 nanoscience & nanotechnologylcsh:QC1-999NanosciencenanowiressymbolsChemically deposited Sb2S3Strength0210 nano-technologyMaterials scienceThin filmsCellsNanowireCarbon nanotubesNanotechnologyCarbon nanotubeCrystalssymbols.namesakeCross section (physics)Antimony sulfide0103 physical sciencesSb2S3Mechanical resonanceElectrical and Electronic EngineeringArrayslcsh:TNanowiresin situResonanceantimony sulfidelcsh:Qlcsh:Physics
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Investigating the mechanical properties of GeSn nanowires.

2019

Germanium tin (GeSn) has been proposed as a promising material for electronic and optical applications due to the formation of a direct band-gap at a Sn content >7 at%. Furthermore, the ability to manipulate the properties of GeSn at the nanoscale will further permit the realisation of advanced mechanical devices. Here we report for the first time the mechanical properties of GeSn nanowires (7.1-9.7 at% Sn) and assess their suitability as nanoelectromechanical (NEM) switches. Electron microscopy analysis showed the nanowires to be single crystalline, with surfaces covered by a thin native amorphous oxide layer. Mechanical resonance and bending tests at different boundary conditions were use…

Materials scienceAlloyNanowirechemistry.chemical_elementGermanium02 engineering and technologyBendingengineering.material010402 general chemistry01 natural sciencesGeneral Materials ScienceMechanical resonanceNanoscopic scaleGermanium tin alloybusiness.industryMechanical behaviour021001 nanoscience & nanotechnology0104 chemical sciencesNanowirechemistryengineeringOptoelectronicsSize dependence0210 nano-technologyTinbusinessLayer (electronics)Nanoscale
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Nanowires for NEMS Switches

2020

Nanoelectromechanical systems (NEMS) are a promising novel technology for operation in extreme conditions (e.g. high temperature and radiation levels), where complementary semiconductor technology devices might fail due to electronic instability. An example for a NEMS device is a nanowire-based switch, which employs mechanical deflection of a nanowire to open and close an electrical circuit. To date, assembly and operation of individual nanowire based NEMS switches have been successfully demonstrated at laboratory level, but their further technological development remains a challenge. This chapter gives an insight into the current advances in applications of nanowires for NEMS switches. Syn…

Nanoelectromechanical systemsMaterials sciencebusiness.industryNanowirechemistry.chemical_elementGermaniumNanotechnologylaw.inventionchemistry.chemical_compoundSemiconductorchemistrylawElectrical networkBismuth selenideMechanical resonancebusinessNanodevice
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