scholarly journals Formation and physical properties of the self-assembled BFO–CFO vertically aligned nanocomposite on a CFO-buffered two-dimensional flexible mica substrate

RSC Advances ◽  
2021 ◽  
Vol 11 (26) ◽  
pp. 15539-15545
Author(s):  
Tahta Amrillah ◽  
Angga Hermawan ◽  
Shu Yin ◽  
Jenh-Yih Juang
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Physical Properties ◽  
The Self ◽  
Two Dimensional ◽  
Mica Substrate ◽  
Vertically Aligned ◽  
Self Assembled

BiFeO3–CoFe2O4 vertically aligned nanocomposites, which mainly discovered in thin-films deposited on rigid substrates, have been successfully transformed into a flexible thin-film using a mica substrate.

scholarly journals Self-Propagating Reactive Fronts in Compacts of Multilayered Particles

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Ihab Sraj ◽  
Manav Vohra ◽  
Leen Alawieh ◽  
Timothy P. Weihs ◽  
Omar M. Knio
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Reaction Front ◽  
Thermal Contact Resistance ◽  
Thermal Contact ◽  
The Self ◽  
Two Dimensional ◽  
Transient Model ◽  
Neighboring Particle ◽  
Reaction Fronts

Reactive multilayered foils in the form of thin films have gained interest in various applications such as joining, welding, and ignition. Typically, thin film multilayers support self-propagating reaction fronts with speeds ranging from 1 to 20 m/s. In some applications, however, reaction fronts with much smaller velocities are required. This recently motivated Fritz et al. (2011) to fabricate compacts of regular sized/shaped multilayered particles and demonstrate self-sustained reaction fronts having much smaller velocities than thin films with similar layering. In this work, we develop a simplified numerical model to simulate the self-propagation of reactive fronts in an idealized compact, comprising identical Ni/Al multilayered particles in thermal contact. The evolution of the reaction in the compact is simulated using a two-dimensional transient model, based on a reduced description of mixing, heat release, and thermal transport. Computed results reveal that an advancing reaction front can be substantially delayed as it crosses from one particle to a neighboring particle, which results in a reduced mean propagation velocity. A quantitative analysis is thus conducted on the dependence of these phenomena on the contact area between the particles, the thermal contact resistance, and the arrangement of the multilayered particles.

scholarly journals Homochiral Supramolecular Thin Film from Self-Assembly of Achiral Triarylamine Molecules by Circularly Polarized Light

Molecules ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 402
Author(s):  
Changjun Park ◽  
Jinhee Lee ◽  
Taehyoung Kim ◽  
Jaechang Lim ◽  
Jeyoung Park ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Self Assembly ◽  
Polarized Light ◽  
Building Blocks ◽  
The Self ◽  
Assembly Process ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Self Assembled

Here, we report the formation of homochiral supramolecular thin film from achiral molecules, by using circularly polarized light (CPL) only as a chiral source, on the condition that irradiation of CPL does not induce a photochemical change of the achiral molecules. Thin films of self-assembled structures consisting of chiral supramolecular fibrils was obtained from the triarylamine derivatives through evaporation of the self-assembled triarylamine solution. The homochiral supramolecular helices with the desired handedness was achieved by irradiation of circularly polarized visible light during the self-assembly process, and the chiral stability of supramolecular self-assembled product was achieved by photopolymerization of the diacetylene moieties at side chains of the building blocks, with irradiation of circularly polarized ultraviolet light. This work provides a novel methodology for the generation of homochiral supramolecular thin film from the corresponding achiral molecules.

Fabrication of Transparent Capacitive Structure by Self-Assembled Thin Films

2008 ◽  
Vol 8 (6) ◽  
pp. 3008-3012 ◽  
Author(s):  
Q. Zhang ◽  
Y. J. Shin ◽  
F. Hua ◽  
L. V. Saraf ◽  
D. W. Matson
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Indium Tin Oxide ◽  
Interactive Media ◽  
Silica Nanoparticle ◽  
Device Fabrication ◽  
The Self ◽  
Large Area ◽  
Material Synthesis ◽  
Self Assembled

An approach to fabricating transparent electronic devices by using nanomaterial and nanofabrication is presented in this paper. A see-through capacitor is constructed from self-assembled silica nanoparticle layers that are stacked on the transparent substrate. The electrodes are made of indium tin oxide. Unlike the traditional processes used to fabricate such devices, the self-assembly approach enables one to synthesize the thin film layers at lower temperature and cost, and with a broader availability of nanomaterials. The vertical dimension of the self-assembled thin films can be precisely controlled, as well as the molecular order in the thin film layers. The shape of the capacitor is generated by planar micropatterning. The monitoring by quartz crystal demonstrates the steady growth of the silica nanoparticle multilayer. In addition, because the material synthesis and the device fabrication steps are separate, the fabrication is not affected by the harsh conditions required for the material synthesis. As a result, a clear pattern is allowed over a large area on the substrate. The prepared capacitive structure has an optical transparency higher than 92% over the visible spectrum. The capacitive impedance is measured at different frequencies and fit the theoretical results. As one of the fundamental components, this type of capacitive structure can serve in the transparent circuits, interactive media and sensors, as well as being applicable to other transparent devices.

Self-assembled morphologies of an amphiphilic Y-shaped weak polyelectrolyte in a thin film

2017 ◽  
Vol 19 (46) ◽  
pp. 31011-31023 ◽  
Author(s):  
Dan Mu ◽  
Jian-Quan Li ◽  
Sheng-Yu Feng
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Aggregate Size ◽  
Cylindrical Structures ◽  
Self Assembled

The introduction of charges leads to a smaller aggregate size and lower density; moreover, crossed-cylindrical structures are produced in thicker thin films.

scholarly journals WO3 nanorolls self-assembled as thin films by hydrothermal synthesis

Nanoscale ◽  
2015 ◽  
Vol 7 (16) ◽  
pp. 7174-7177 ◽  
Author(s):  
S. Vankova ◽  
S. Zanarini ◽  
J. Amici ◽  
F. Cámara ◽  
R. Arletti ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Hydrothermal Synthesis ◽  
Conductive Substrate ◽  
Self Assembled

We report a novel type of WO3 nanostructure, i.e. nanorolls obtained as a self-assembled thin film on a transparent conductive substrate.

The Elastic Moduli of Silver Thin Films Measured with a New Microtensile Tester

1991 ◽  
Vol 239 ◽  
Author(s):  
J. Ruud ◽  
D. Josell ◽  
A. L. Greer ◽  
F. Spaepen
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Diffraction Grating ◽  
Strain Measurement ◽  
Elastic Moduli ◽  
Two Dimensional ◽  
Bulk Crystals ◽  
Free Standing ◽  
Tensile Direction ◽  
Silver Thin Films

ABSTRACTA new design for a thin film microtensile tester is presented. The strain is measured directly on the free-standing thin film from the displacement of laser spots diffracted from a thin grating applied to its surface by photolithography. The diffraction grating is two-dimensional, allowing strain measurement both along and transverse to the tensile direction. In principle, both Young's modulus and Poisson's ratio of a thin film can be determined. Ag thin films with strong <111> texture were tested. The measured Young moduli agreed with those measured on bulk crystals, but the measured Poisson ratios were low, most likely due to slight transverse folding of the film that developed during the test.

scholarly journals Correction: Study on the efficient PV/TE characteristics of the self-assembled thin films based on bismuth telluride/cadmium telluride

RSC Advances ◽  
2017 ◽  
Vol 7 (63) ◽  
pp. 39685-39685
Author(s):  
Vivekanandan Raman ◽  
Dinah Punnoose ◽  
Pari Baraneedharan ◽  
Sunkara Srinivasa Rao ◽  
Chandu V. V. M. Gopi ◽  
...  
Keyword(s):  
Thin Films ◽  
Cadmium Telluride ◽  
Bismuth Telluride ◽  
The Self ◽  
Self Assembled

Correction for ‘Study on the efficient PV/TE characteristics of the self-assembled thin films based on bismuth telluride/cadmium telluride’ by Vivekanandan Raman et al., RSC Adv., 2017, 7, 6735–6742.

scholarly journals Tip-Based Nanomachining on Thin Films: A Mini Review

2021 ◽  
Author(s):  
Shunyu Chang ◽  
Yanquan Geng ◽  
Yongda Yan
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Data Storage ◽  
Three Dimensional ◽  
Maintenance Cost ◽  
Two Dimensional ◽  
Force Microscopy ◽  
Atomic Force ◽  
Current State ◽  
Two Dimensional Materials

AbstractAs one of the most widely used nanofabrication methods, the atomic force microscopy (AFM) tip-based nanomachining technique offers important advantages, including nanoscale manipulation accuracy, low maintenance cost, and flexible experimental operation. This technique has been applied to one-, two-, and even three-dimensional nanomachining patterns on thin films made of polymers, metals, and two-dimensional materials. These structures are widely used in the fields of nanooptics, nanoelectronics, data storage, super lubrication, and so forth. Moreover, they are believed to have a wide application in other fields, and their possible industrialization may be realized in the future. In this work, the current state of the research into the use of the AFM tip-based nanomachining method in thin-film machining is presented. First, the state of the structures machined on thin films is reviewed according to the type of thin-film materials (i.e., polymers, metals, and two-dimensional materials). Second, the related applications of tip-based nanomachining to film machining are presented. Finally, the current situation of this area and its potential development direction are discussed. This review is expected to enrich the understanding of the research status of the use of the tip-based nanomachining method in thin-film machining and ultimately broaden its application.

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