scholarly journals Dynamics Inside Polymer Drops: From Dimple to Rayleigh Instability to Torus

2003 ◽  
Vol 15 (9) ◽  
pp. S5-S5
Author(s):  
Michael C. Sostarecz ◽  
Andrew Belmonte
Keyword(s):  
Rayleigh Instability

In situ TEM Studies of agglomeration of sub-nanometer Ru layers in Ru/C multilayers

1992 ◽  
Vol 50 (1) ◽  
pp. 256-257
Author(s):  
Tai D. Nguyen ◽  
Ronald Gronsky ◽  
Jeffrey B. Kortright
Keyword(s):  
Layered Structure ◽  
Driving Force ◽  
High Energy ◽  
Superior Performance ◽  
In Situ Tem ◽  
Rayleigh Instability ◽  
Practical Applications ◽  
Transmission Electron ◽  
Diffraction Patterns

Nanometer period Ru/C multilayers are one of the prime candidates for normal incident reflecting mirrors at wavelengths < 10 nm. Superior performance, which requires uniform layers and smooth interfaces, and high stability of the layered structure under thermal loadings are some of the demands in practical applications. Previous studies however show that the Ru layers in the 2 nm period Ru/C multilayer agglomerate upon moderate annealing, and the layered structure is no longer retained. This agglomeration and crystallization of the Ru layers upon annealing to form almost spherical crystallites is a result of the reduction of surface or interfacial energy from die amorphous high energy non-equilibrium state of the as-prepared sample dirough diffusive arrangements of the atoms. Proposed models for mechanism of thin film agglomeration include one analogous to Rayleigh instability, and grain boundary grooving in polycrystalline films. These models however are not necessarily appropriate to explain for the agglomeration in the sub-nanometer amorphous Ru layers in Ru/C multilayers. The Ru-C phase diagram shows a wide miscible gap, which indicates the preference of phase separation between these two materials and provides an additional driving force for agglomeration. In this paper, we study the evolution of the microstructures and layered structure via in-situ Transmission Electron Microscopy (TEM), and attempt to determine the order of occurence of agglomeration and crystallization in the Ru layers by observing the diffraction patterns.

Fabrication of Invisible Ag Nanowire Electrode Patterns Based on Laser-Induced Rayleigh Instability

2016 ◽  
Vol 120 (36) ◽  
pp. 20471-20477 ◽  
Author(s):  
Harim Oh ◽  
Jeeyoung Lee ◽  
Jin-Hoon Kim ◽  
Jin-Woo Park ◽  
Myeongkyu Lee
Keyword(s):  
Rayleigh Instability ◽  
Ag Nanowire

scholarly journals Fabrication of Eutectic Ga-In Nanowire Arrays Based on Plateau–Rayleigh Instability

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4616
Author(s):  
Takashi Ikuno ◽  
Zen Somei
Keyword(s):  
Integrated Circuits ◽  
Substrate Surface ◽  
Three Dimensional ◽  
Average Diameter ◽  
Nanowire Arrays ◽  
Scanning Probe ◽  
Rayleigh Instability ◽  
Simple Method ◽  
Flat Substrate ◽  
Metal Nanowire

We have developed a simple method of fabricating liquid metal nanowire (NW) arrays of eutectic GaIn (EGaIn). When an EGaIn droplet anchored on a flat substrate is pulled perpendicular to the substrate surface at room temperature, an hourglass shaped EGaIn is formed. At the neck of the shape, based on the Plateau–Rayleigh instability, the EGaIn bridge with periodically varying thicknesses is formed. Finally, the bridge is broken down by additional pulling. Then, EGaIn NW is formed at the surface of the breakpoint. In addition, EGaIn NW arrays are found to be fabricated by pulling multiple EGaIn droplets on a substrate simultaneously. The average diameter of the obtained NW was approximately 0.6 μm and the length of the NW depended on the amount of droplet anchored on the substrate. The EGaIn NWs fabricated in this study may be used for three-dimensional wiring for integrated circuits, the tips of scanning probe microscopes, and field electron emission arrays.

Plateau–Rayleigh instability in a soft viscoelastic material

Soft Matter ◽  
2021 ◽  
Author(s):  
S. I. Tamim ◽  
J. B. Bostwick
Keyword(s):  
Surface Tension ◽  
Stability Analysis ◽  
Dynamic Stability ◽  
Viscoelastic Material ◽  
Viscoelastic Properties ◽  
Rayleigh Instability ◽  
Cylindrical Interface

A soft cylindrical interface endowed with surface tension can be unstable to wavy undulations. The most unstable wavelength depends upon the viscoelastic properties of the material and is determined by a dynamic stability analysis.

In situ atomic-scale analysis of Rayleigh instability in ultrathin gold nanowires

Nano Research ◽  
2017 ◽  
Vol 11 (2) ◽  
pp. 625-632 ◽  
Author(s):  
Shang Xu ◽  
Peifeng Li ◽  
Yang Lu
Keyword(s):  
Atomic Scale ◽  
Gold Nanowires ◽  
Scale Analysis ◽  
Rayleigh Instability

System Design and Process Optimization for the Inkjet Printing of PEDOT:Poly(styrenesulfonate)

2014 ◽  
Vol 2 (1) ◽  
Author(s):  
P. Wilson ◽  
C. Lekakou ◽  
J. F. Watts
Keyword(s):  
Process Optimization ◽  
Inkjet Printing ◽  
Process Model ◽  
Conductive Polymer ◽  
Process Window ◽  
Rayleigh Instability ◽  
Voltage Waveform ◽  
Electrically Conductive ◽  
Satellite Drops ◽  
Printing System

A laboratory-scale inkjet printing system was designed for printing polymeric inks with the focus on PEDOT:PSS, a transparent, electrically conductive polymer. PEDOT:PSS inks with 0 and 1 wt. % Surfynol were tested rheologically in elongational and shear flows. A process model is presented and validated for the prediction of flow boundary after the ink exits the nozzle, including drop formation. Process optimization involved establishing a process window related to the voltage waveform, substrate temperature, speed and printed line-overlap, aiming at avoiding satellite drops, “coffee cup” rings, the Rayleigh instability, “stacked printed lines,” and discontinuities in the printed lines or films.

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