A General Route to Nanoparticle Thin Films and Coatings

2005 ◽  
Vol 901 ◽  
Author(s):  
Bratindranath Mukherjee ◽  
Ravishankar Narayanan
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Microstructural Characterization ◽  
Thin Film Deposition ◽  
Basic Mechanism ◽  
Film Deposition ◽  
Magnetic Storage ◽  
Sers Substrate ◽  
Large Area ◽  
Wide Range

AbstractNanoparticles thin films have wide range of applications such as nanoelectronics, magnetic storage devices, SERS substrate fabrication, optical grating and antireflective coating. Present work describes a method to prepare large area nanoparticles thin film of the order of few square centimeters. Thin film deposition has been done successfully on a wide range of conducting as well as non conducting substrates such as carbon-coated copper grid, silicon, m-plane of alumina, glass and (100) plane of NaCl single crystal. SEM, TEM and AFM studies have been done for microstructural characterization of the thin films. A basic mechanism has been proposed towards the understanding of the deposition process.

scholarly journals Special Issue: Current Research in Thin Film Deposition: Applications, Theory, Processing, and Characterisation

Coatings ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1228
Author(s):  
Ross Birney
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Special Issue ◽  
Wide Range

Today, thin films are near-ubiquitous and are utilised in a very wide range of industrially and scientifically important areas [...]

Observations on the growth of YBa2Cu3O7-δ thin films on MgO by pulsed-laser ablation

1991 ◽  
Vol 49 ◽  
pp. 1068-1069
Author(s):  
M. Grant Norton ◽  
C. Barry Carter
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Laser Ablation ◽  
Substrate Surface ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Laser Ablation Process ◽  
Deposition Parameters

Pulsed-laser ablation has been widely used to produce high-quality thin films of YBa2Cu3O7-δ on a range of substrate materials. The nonequilibrium nature of the process allows congruent deposition of oxides with complex stoichiometrics. In the high power density regime produced by the UV excimer lasers the ablated species includes a mixture of neutral atoms, molecules and ions. All these species play an important role in thin-film deposition. However, changes in the deposition parameters have been shown to affect the microstructure of thin YBa2Cu3O7-δ films. The formation of metastable configurations is possible because at the low substrate temperatures used, only shortrange rearrangement on the substrate surface can occur. The parameters associated directly with the laser ablation process, those determining the nature of the process, e g. thermal or nonthermal volatilization, have been classified as ‘primary parameters'. Other parameters may also affect the microstructure of the thin film. In this paper, the effects of these ‘secondary parameters' on the microstructure of YBa2Cu3O7-δ films will be discussed. Examples of 'secondary parameters' include the substrate temperature and the oxygen partial pressure during deposition.

Phenethylammonium bismuth halides: from single crystals to bulky-organic cation promoted thin-film deposition for potential optoelectronic applications

2019 ◽  
Vol 7 (36) ◽  
pp. 20733-20741 ◽  
Author(s):  
Mehri Ghasemi ◽  
Miaoqiang Lyu ◽  
Md Roknuzzaman ◽  
Jung-Ho Yun ◽  
Mengmeng Hao ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Surface Roughness ◽  
Single Crystals ◽  
Organic Cation ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Optoelectronic Applications ◽  
Excellent Stability

The phenethylammonium cation significantly promotes the formation of fully-covered thin-films of hybrid bismuth organohalides with low surface roughness and excellent stability.

Chemical Bath Deposition of Lead Sulphide (PbS) Thin Film and their Characterization

2013 ◽  
Vol 209 ◽  
pp. 111-115 ◽  
Author(s):  
Sandip V. Bhatt ◽  
M.P. Deshpande ◽  
Bindiya H. Soni ◽  
Nitya Garg ◽  
Sunil H. Chaki
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Raman Spectroscopy ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Excitation Wavelength ◽  
Face Centered Cubic ◽  
Phonon Modes ◽  
Lead Sulphide ◽  
X Ray

Thin film deposition of PbS is conveniently carried out by chemical reactions of lead acetate with thiourea at room temperature. Energy dispersive analysis of X-ray (EDAX), X-ray diffraction (XRD), selected area electron diffraction patterns (SAED), UV-Vis-NIR spectrophotometer, Scanning Electron Microscopy (SEM), Atomic force microscopy (AFM), Photoluminescence (PL) and Raman spectroscopy techniques are used for characterizing thin films. EDAX spectra shows that no impurity is present and XRD pattern indicates face centered cubic structure of PbS thin films. The average crystallite size obtained using XRD is about 15nm calculated using Scherrer’s formula and that determined from Hall-Williamson plot was found to be 18nm. SAED patterns indicate that the deposited PbS thin films are polycrystalline in nature. Blue shift due to quantum confinement was seen from the UV-Vis-NIR absorption spectra of thin film in comparison with bulk PbS. The Photoluminescence spectra obtained for thin film with different excitation sources shows sharp emission peaks at 395nm and its intensity of photoluminescence increases with increasing the excitation wavelength. Raman spectroscopy of deposited thin film was used to study the optical phonon modes at an excitation wavelength of 488nm using (Ar+) laser beam.

Stability Studies on Optical and Structure Properties of Zinc Oxide Thin Films Exposed to Different Environment

2013 ◽  
Vol 667 ◽  
pp. 549-552
Author(s):  
A.S.M. Rodzi ◽  
Mohamad Hafiz Mamat ◽  
M.N. Berhan ◽  
Mohamad Rusop Mahmood
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Zinc Oxide ◽  
Absorption Coefficient ◽  
Near Infrared ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Zno Films ◽  
Zno Thin Film ◽  
Oxide Thin Films

The properties of zinc oxide thin films were prepared by sol-gel spin-coating method have been presented. This study based on optical and electrical properties of ZnO thin film. The effects of annealing temperatures that exposed with two environments properties have been investigated. Environments exposed in room (27°C) and hot (80°C) temperatures which are stored by various days. Solution preparation, thin film deposition and characterization process were involved in this project. The ZnO films were characterized using UV-Vis-NIR spectrophotometer for optical properties. From that equipment, the percentage of transmittance (%) and absorption coefficient spectra were obtained. With two environments showed have different absorption coefficient are reveal and all films have low absorbance in visible and near infrared (IR) region but have high UV absorption properties. From SEM investigations the surface morphology of ZnO thin film shows the particles size become smaller and denser in hot temperatures while in room temperatures have porosity between particles.

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).

Multi-target reactive sputtering—A promising technology for large-area Pb(Zr,Ti)O3 thin film deposition

2007 ◽  
Vol 27 (13-15) ◽  
pp. 3789-3792 ◽  
Author(s):  
G. Suchaneck ◽  
W.-M. Lin ◽  
V.S. Vidyarthi ◽  
G. Gerlach ◽  
J. Hartung
Keyword(s):  
Thin Film ◽  
Reactive Sputtering ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Large Area ◽  
Promising Technology

scholarly journals Thin Film Deposition: Solution Based Approach

2021 ◽  
Author(s):  
Kashif Tufail Chaudhary
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Inkjet Printing ◽  
High Efficiency ◽  
Scale Up ◽  
Thin Film Deposition ◽  
Dip Coating ◽  
Film Deposition ◽  
Promising Technique ◽  
Thin Film Fabrication

The wet chemical processing opens the way to deposit thin film with the versatility and ease for a variety of materials. Liquid film deposition involves the application of a liquid precursor on a substrate which is then converted to the required coating material in a subsequent post-treatment step. Different non-vacuum solution based deposition techniques have been developed to grow thin films with high efficiency and functionality. Spin coating is one of an effective technique for thin film fabrication due to low cost, uniformity, less hazardous, and capability of easy scaling up. The typical process involves depositing a small amount of a fluid onto the center of a substrate and then spinning the substrate at high speed. Dip coating is another simple, cost effective route with feasibility to scale-up for commercial production. The dip coating process can be divided into three important technical stages, immersion, withdrawal and evaporation. The coating may be subjected to further heat treatment in order to burn out residual compounds and induce crystallization of the functional oxides. Spray coating is a promising technique to grow thin film in research and industry to prepare thin and thick films. It is an easy approach to fabricate thin film with uniform distribution at small scale from a few nanometers to micrometers in thickness. Inkjet printing is the emerging promising technique to develop large-scale, and flexible thin films. The inkjet printing process allow easy customization to grow variety of complex structures.

scholarly journals An Integrated Cleanroom Process for the Vapor Phase Deposition of Large-Area Zeolitic Imidazolate Framework Thin Films

2019 ◽  
Author(s):  
Alexander John Cruz ◽  
Ivo Stassen ◽  
Mikhail Krishtab ◽  
Kristof Marcoen ◽  
Timothée Stassin ◽  
...  
Keyword(s):  
Thin Films ◽  
Chemical Vapor ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Ex Situ ◽  
Test Case ◽  
Large Area ◽  
Zeolitic Imidazolate Framework ◽  
Deposition Parameters ◽  
The Impact

<p>Robust and scalable thin film deposition methods are key to realize the potential of metal-organic frameworks (MOFs) in electronic devices. Here, we report the first integration of the chemical vapor deposition (CVD) of MOF coatings in a custom reactor within a cleanroom setting. As a test case, the MOF-CVD conditions for ZIF-8 are optimized to enable smooth, pinhole-free, and uniform thin films on full 200 mm wafers under mild conditions. The single-chamber MOF-CVD process and the impact of the deposition parameters are elucidated <i>via</i> a combination of <i>in situ </i>monitoring and <i>ex situ</i> characterization. The resulting process guidelines will pave the way for new MOF-CVD formulations and a plethora of MOF-based devices.<br></p>

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