Ultra high-yield one-step synthesis of conductive and superhydrophobic three-dimensional mats of carbon nanofibers via full catalysis of unconstrained thin films

2014 ◽  
Vol 2 (36) ◽  
pp. 15118-15123 ◽  
Author(s):  
Efrat Shawat ◽  
Ilana Perelshtein ◽  
Andrew Westover ◽  
Cary L. Pint ◽  
Gilbert D. Nessim
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Carbon Nanofibers ◽  
Three Dimensional ◽  
High Yield ◽  
One Step

We directly synthesized large conductive and superhydrophobic 3D mats of entangled carbon nanofibers (CNFs). The mechanism is based on thin film delamination and bi-directional catalytic CNF growth.

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.

Simulation of 3D Films Deposited by Glancing Angle Deposition Using 3D-Films

2000 ◽  
Vol 616 ◽  
Author(s):  
T. Smy ◽  
D. Vick ◽  
M. J. Brett ◽  
S. K. Dew ◽  
A. T. Wu ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Three Dimensional ◽  
Thin Film Deposition ◽  
Glancing Angle Deposition ◽  
Film Deposition ◽  
Porous Thin Films ◽  
Glancing Angle ◽  
Memory Resources ◽  
Angle Deposition

AbstractA new fully three dimensional (3D) ballistic deposition simulator 3D-FILMS has been developed for the modeling of thin film deposition and structure. The simulator may be implemented using the memory resources available to workstations. In order to illustrate the capabilities of 3D-FILMS, we apply it to the growth of engineered porous thin films produced by the technique of GLancing Angle Deposition (GLAD).

Transformations in Thin Solid Layers: The Reversible Polymerization-Depolymerization of 2,6-Di-n-propyl- 1,3,5,7-tetraoxa-2,6-dibora-4,8-octalindiones at Low Temperatures

1985 ◽  
Vol 40 (2) ◽  
pp. 222-228 ◽  
Author(s):  
Mohamed Yalpani ◽  
E. Klotzbücher
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Title Compound ◽  
Low Temperatures ◽  
Three Dimensional ◽  
Visible Spectroscopy ◽  
Varying Thickness ◽  
Spontaneous Formation ◽  
Uv Visible ◽  
Lattice Energies

The course of Aggregation of molecules of the title compound (1b) through different, spectroscopically discernible and chemically identifiable forms of associations could be followed by matrix isolation and thin film infrared and UV-visible spectroscopy. It was found that molecules of 1b in thin films form clusters which at low temperatures interact weakly, probably through the carbonyl oxygens of one and the boron atoms of the neighbouring molecules. On warming to 260 K this association gradually takes the form of more defined chelate bonds, probably with ordered three-dimensional intermolecular structures. Above this temperature spontaneous formation of crystallites of the previously reported ʻhotʼ and ʻcoldʼ modifications was observed. Studies with films of varying thickness indicate an interdependence of crystallite size and lattice energies.

In situ one-step synthesis of p-type copper oxide for low-temperature, solution-processed thin-film transistors

2017 ◽  
Vol 5 (10) ◽  
pp. 2524-2530 ◽  
Author(s):  
Ao Liu ◽  
Shengbin Nie ◽  
Guoxia Liu ◽  
Huihui Zhu ◽  
Chundan Zhu ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Low Temperature ◽  
Thin Film Transistors ◽  
Solution Processed ◽  
Naoh Solution ◽  
Temperature Solution ◽  
One Step ◽  
P Type

Solution-processed p-type Cu2O thin films were fabricated via in-situ reaction of CuI film in NaOH solution and their applications in thin-film transistors were successfully demonstrated.

One-step coelectrodeposition-assisted layer-by-layer assembly of gold nanoparticles and reduced graphene oxide and its self-healing three-dimensional nanohybrid for an ultrasensitive DNA sensor

Nanoscale ◽  
2018 ◽  
Vol 10 (3) ◽  
pp. 1196-1206 ◽  
Author(s):  
Jayakumar Kumarasamy ◽  
María Belén Camarada ◽  
Dharuman Venkatraman ◽  
Huangxian Ju ◽  
Ramendra Sundar Dey ◽  
...  
Keyword(s):  
Thin Films ◽  
Three Dimensional ◽  
Multilayer Thin Films ◽  
Layer By Layer ◽  
Self Healing ◽  
Dna Sensor ◽  
Layer By Layer Assembly ◽  
Reduced Graphene ◽  
One Step ◽  
Layer Assembly

One-step coelectrodeposition-assisted layer-by-layer assembly was employed for preparing multilayer thin films with a controlled three-dimensional nanoarchitecture and application in an ultrasensitive DNA biosensor.

scholarly journals 2D and 3D Analyses of Metal Oxide Thin Films Examined by Atomic Force Microscope

2015 ◽  
Vol 773-774 ◽  
pp. 716-719
Author(s):  
Mokhter Faezahana ◽  
Nayan Nafarizal ◽  
Jia Wei Low ◽  
Che Ani Norhidayah ◽  
Mohd Zainizan Sahdan ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Metal Oxide ◽  
Three Dimensional ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Oxide Thin Films ◽  
Metal Oxide Thin Films ◽  
Atomic Force ◽  
Measured Sample

Atomic force microscope (AFM) is a useful tool to capture the two- and three-dimensional image of height and size of nanostructured thin film. It operate by measuring the forces between a sharp tip and surface of the measured sample. In addition, AFM is equipped with powerful software for image processing to interpret experimental results in detail. For example, by using the height and scanning length parameters of measured sample, average roughness and root mean square roughness can be evaluated. In the present works, the effect of image flattening process toward the surface roughness and surface fluctuations of metal oxide thin films will be presented. Set of samples were prepared by magnetron sputtering deposition and sol-gel coating techniques. In gas sensor industries using metal oxide thin film, surface roughness of metal oxide thin films are very important in order to improve the sensitivity and respond time of gas sensor. Therefore, optimization of thin film deposition and characterization are very important. The correlation between the three-dimensional image and thin film deposition and image processing parameters will also be presented.

One-step electrodeposition of CuInxGa1−xSe2 thin films from a mixture system of ionic liquid and ethanol

2015 ◽  
Vol 39 (10) ◽  
pp. 7742-7745 ◽  
Author(s):  
Ye Lian ◽  
Shanshan Ji ◽  
Lei Zhao ◽  
Jie Zhang ◽  
Peixia Yang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Ionic Liquid ◽  
Band Gap ◽  
High Crystalline Quality ◽  
Cigs Thin Film ◽  
Type Semiconductor ◽  
One Step ◽  
P Type ◽  
Mixture System

Synthesizing high crystalline quality p-type semiconductor CIGS thin film with a band gap of 1.41 eV by galvanostatic electrodeposition.

A Study on the Computer Simulation for the Fractal Growth of Semiconductor Thin Films

2013 ◽  
Vol 311 ◽  
pp. 451-455
Author(s):  
Liang Wen Ji ◽  
Mei Li Tsai
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Computer Simulation ◽  
Film Growth ◽  
Fractal Theory ◽  
Three Dimensional ◽  
Thin Film Growth ◽  
Physical Parameters ◽  
Traditional Theory ◽  
Semiconductor Thin Films

This paper is based on theoretical methods to study the computer simulation and analysis of the growth of semiconductor thin films. First, according to the traditional theory of thin-film growth, the relationship between the growth morphology and the physical parameters are discussed. Then, fractal theory has been applied to improve the diffusion-limited aggregation (DLA) model. And the simulations of the two-dimensional and three-dimensional thin-film growth are proposed. A computer program of the simulation of the thin-film growth is developed with help of MATLAB. Finally, the results of the simulation of the thin-film growth have been analyzed by the fractal dimension and multifractal spectra. The results of this paper can be applied to the dynamic simulation of nanometer thin-film growth, and an effective simulation tool is to provide the semiconductor process.

scholarly journals Advanced Laser Processing Towards Solar Cells Fabrication

2021 ◽  
Author(s):  
Jhantu Kumar Saha ◽  
Animesh Dutta
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Short Pulse ◽  
Short Pulse Laser ◽  
New Material ◽  
One Step ◽  
Modified Surface ◽  
Cell Fabrication ◽  
Ultra Short Pulse ◽  
Stability Issues

The ultra-short pulse laser has the potential in selective nano-structuring of thin-films layers by adjusting the wavelength of laser radiation depending on optical properties of the thin- film and the substrate that will solve its efficiency and stability issues in a one-step process, which is a promising methodology for thin-film solar cell fabrication that are fabricated through a sequence of vapor deposition and scribing processes. The review is performed to further understand the structure of the laser modified surface and the nature of dopants and defects in the crystalline grains. Using low temperature studies, the electronic levels of the dopant and its configuration with the lattice could be probed. The review is also explored the concept of using thin films of silicon as the laser irradiation substrate and for enhanced the visible and infrared absorption of films of silicon with thicknesses of few micrometer. Although the review is made good progress studying the properties of new material and incorporation into device but there are many unanswered questions and exciting avenues of research are also explored with femtosecond laser irradiated silicon.

Conjugate Analysis of Thin Film Heat Spreaders to Reduce Temperature at Hot Spots

2015 ◽  
Author(s):  
Sohail R. Reddy ◽  
Abas Abdoli ◽  
George S. Dulikravich ◽  
Rajesh Jha
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Hot Spot ◽  
Three Dimensional ◽  
Effective Area ◽  
Heat Transfer Analysis ◽  
Maximum Temperature ◽  
Film Material ◽  
Electric Circuits ◽  
Heat Spreaders

The effects of thin film coating on maximum temperature of integrated electric circuits are investigated. A fully three-dimensional conjugate heat transfer analysis was performed to investigate the effects of thin film material and thickness on the temperature of a hot spot. Two different materials, diamond and graphene nano-platelets were simulated as materials for thin films. The thin film heat spreaders were applied to the top wall of the three optimized arrays of micro pin-fins having circular, airfoil and convex cross sections. The electronic chip with a 4 × 3 mm footprint featured a 0.5 × 0.5 mm hot spot located on the top wall which was exposed to a uniform high-level background heat flux. The effective area of coverage of the thin films was also investigated computationally. It was found that thin film heat spreaders significantly reduce the hot spot temperature, allowing for increased thermal loads and therefore increased performance. Furthermore, it was found that thickness of the thin film heat spreader does not have to be greater than a few tens of microns.

Sign in / Sign up

Export Citation Format

Share Document