Results 11 to 20 of about 38,930 (258)

Nanostructural and piezoelectric characterization of electro-formed δ-phase poly(vinylidene fluoride) thin films

open access: yesMaterials Research Letters, 2023
Ferroelectric polymer PVDF possesses different polymorphs. Solution-processed thin films crystallize mostly into the paraelectric α-phase. From α-PVDF, the electroactive phases β-, γ-, δ-PVDF can be achieved by further treatments.
Davide Disnan   +6 more
doaj   +1 more source

Optimized Batch Process for Organic MEMS Devices

open access: yesProceedings, 2018
Recently, organic electromechanical transducers have attracted intense scientific and technological interest due to their unique mechanical flexibility and their piezoelectric properties.
Jonas Hafner   +4 more
doaj   +1 more source

Atomic Layer Deposition of TiO2 Nanocoatings on ZnO Nanowires for Improved Photocatalytic Stability

open access: yesInternational Journal of Photoenergy, 2019
Photocatalytic water splitting represents an emerging technology well positioned to satisfy the growing need for low-energy, low CO2, economically viable hydrogen gas production.
Emmeline Kao   +3 more
doaj   +1 more source

Buckling Porous SiC Membranes

open access: yesProceedings, 2018
In preliminary studies it could be shown that single crystalline silicon carbide wafers can be porosified with metal assisted photochemical etching. Furthermore, the generation of porous areas which are locally defined is possible with this method.
Markus Leitgeb   +4 more
doaj   +1 more source

Novel MEMS Sensor for Detecting Magnetic Particles in Liquids

open access: yesProceedings, 2018
We present a novel MEMS sensor for the detection of magnetic particles in liquids, which consists of a microcantilever excited piezoelectrically in resonance and having an integrated planar coil on its free end.
Florian Patocka   +3 more
doaj   +1 more source

Tuneable Q-Factor of MEMS Cantilevers with Integrated Piezoelectric Thin Films

open access: yesProceedings, 2017
When targeting the integration of atomic force microscopes (AFM) into vacuum environments (e.g., scanning electron microscopes), a tunable Q-factor of the resonating AFM cantilever is a key feature to enable high speed measurements with high local ...
Martin Fischeneder   +3 more
doaj   +1 more source

Carbon Nanotube Actuators

open access: yesScience, 1999
Electromechanical actuators based on sheets of single-walled carbon nanotubes were shown to generate higher stresses than natural muscle and higher strains than high-modulus ferroelectrics. Like natural muscles, the macroscopic actuators are assemblies of billions of individual nanoscale actuators.
R. H. BAUGHMAN   +12 more
openaire   +7 more sources

Porous Silicon Carbide for MEMS

open access: yesProceedings, 2017
Metal assisted photochemical etching (MAPCE) of 4H Silicon Carbide (SiC) was utilized to generate locally defined porous areas on single crystalline substrates.
Markus Leitgeb   +4 more
doaj   +1 more source

Tuneable Q-Factor of MEMS Cantilevers with Integrated Piezoelectric Thin Films

open access: yesSensors, 2018
In atomic force microscopes (AFM) a resonantly excited, micro-machined cantilever with a tip is used for sensing surface-related properties. When targeting the integration of AFMs into vacuum environments (e.g., for enhancing the performance of scanning ...
Martin Fischeneder   +3 more
doaj   +1 more source

CO Detection Investigation at High Temperature by SiC MISFET Metal/Oxide Gas Sensors

open access: yesProceedings, 2021
In order to investigate the necessary device improvements for high-temperature CO sensing with SiC metal insulator semiconductor field effect transistor (MISFET)-based chemical gas sensors, devices employing, as the gas-sensitive gate contact, a film of ...
Lida Khajavizadeh   +2 more
doaj   +1 more source

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