Novel Piezoelectric Effect and Surface Plasmon Resonance-Based Elements for MEMS Applications

Ponelyte, Sigita; Palevičius, Arvydas

doi:10.3390/s140406910

Cited by 10 publications

(4 citation statements)

References 19 publications

(19 reference statements)

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“…Metal nanoparticles are used in technology applications, such as sensing, , catalysis, , optoelectronics, and microelectromechanical systems . Their reliability in these applications depends on their stability and mechanical behavior and thus requires a clear understanding of their deformation under load.…”

Section: Introductionmentioning

confidence: 99%

“…Metal nanoparticles are used in technology applications, such as sensing, 1 , 2 catalysis, 3 , 4 optoelectronics, 5 and microelectromechanical systems. 6 Their reliability in these applications depends on their stability and mechanical behavior and thus requires a clear understanding of their deformation under load. It is well established that decreasing the size of a structure increases its strength by reducing or eliminating defects and defect sources, giving rise to the “smaller-is-stronger” trend.…”

Section: Introductionmentioning

confidence: 99%

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Size-Dependent Role of Surfaces in the Deformation of Platinum Nanoparticles

et al. 2023

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The mechanical behavior of nanostructures is known to transition from a Hall-Petch-like “smaller-is-stronger” trend, explained by dislocation starvation, to an inverse Hall-Petch “smaller-is-weaker” trend, typically attributed to the effect of surface diffusion. Yet recent work on platinum nanowires demonstrated the persistence of the smaller-is-stronger behavior down to few-nanometer diameters. Here, we used in situ nanomechanical testing inside of a transmission electron microscope (TEM) to study the strength and deformation mechanisms of platinum nanoparticles, revealing the prominent and size-dependent role of surfaces. For larger particles with diameters from 41 nm down to approximately 9 nm, deformation was predominantly displacive yet still showed the smaller-is-weaker trend, suggesting a key role of surface curvature on dislocation nucleation. For particles below 9 nm, the weakening saturated to a constant value and particles deformed homogeneously, with shape recovery after load removal. Our high-resolution TEM videos revealed the role of surface atom migration in shape change during and after loading. During compression, the deformation was accommodated by atomic motion from lower-energy facets to higher-energy facets, which may indicate that it was governed by a confined-geometry equilibration; when the compression was removed, atom migration was reversed, and the original stress-free equilibrium shape was recovered.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Size-Dependent Role of Surfaces in the Deformation of Platinum Nanoparticles

et al. 2023

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“…The important advantages of polymer thin films are that they can be prepared easily and at low cost. Poly methyl methacrylate (PMMA) is one of the promising representatives of polymeric materials and there are numerous proposals for its application as dielectric in organic thin film transistors (OTFTs) (Puigdollers et al,2004;Uemura et al, 2003;Chandar Shekar et al, 2004), sensors (Ponelyte and Palevicius, 2014) as optical lenses in cameras and optical fibers (Nakata et al, 2004;Yang et al, 2004) . Extensive work has been carried out on synthesis, preparation and various properties such as morphology, dielectric, optical and aging behavior of PMMA films (Sakai et al, 2009;Konno et al, 2009;Kim et al, 2009;Mabrook et al, 2009) .…”

Section: Introductionmentioning

confidence: 99%

Preparation of Mesoscopic Structure Poly Methyl Methacrylate Thin Films for Afm Data Storage Devices.

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Sundari³

et al. 2019

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Poly methyl methacrylate (PMMA) thin films were prepared by dip coating method. Benzene was used as a solvent to prepare PMMA thin films for the time periods ranging from 1 min. to 1 h. The thickness of the films deposited was measured by using an electronic thickness measuring instrument (Tesatronic-TTD-20). Fourier Transform Infrared spectrum was used to identify the above said films. X-ray diffraction spectra indicated the predominantly amorphous nature of the films. Surface morphology of the coated films studied by using scanning electron microscope (SEM) indicated the absence of any pits, cracks and pin holes in the surface. Both as grown and annealed films showed smooth and amorphous structures. The closer SEM inspection revealed the presence of self assembled mesoscopic cells. The mesoscopic structure PMMA thin films could be used as an AFM-based data storage which is promising alternative to conventional magnetic data storage because it offers great potential for considerable storage density improvements.

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“…The aim of this Special Issue is to develop a basic understanding of the field, its supporting technologies and current applications. The special issue has collected interesting papers covering topics dedicated to a wide range of applications, in particular in the areas of humidity [ 1 , 2 ], chemical [ 3 ], mechanical [ 4 , 5 ], electromagnetic [ 6 ], electrochemical, piezoelectric [ 1 , 3 , 6 ], biosensors [ 3 , 7 ] and wearable sensors and actuators. In addition, the issue has also received papers from different scientific groups regarding methods in fabrication [ 8 ], materials characterization [ 5 , 9 ] for optimization of polymer sensors and actuators performances, as well as supporting electronics [ 2 ].…”

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confidence: 99%