Thermal Imidization and Structural Evolution of Thin Films of Poly(4,4‘-oxydiphenylenep-pyromellitamic diethyl ester)

2007 ◽  
Vol 111 (50) ◽  
pp. 13894-13900 ◽  
Author(s):  
Tae Joo Shin ◽  
Moonhor Ree
Keyword(s):  
Thin Films ◽  
Structural Evolution ◽  
Diethyl Ester ◽  
Thermal Imidization

Structural Evolution Upon Annealing of Multi-Layer Si/Fe Thin Films Prepared by Magnetron Sputtering

2007 ◽  
Vol 561-565 ◽  
pp. 1161-1164
Author(s):  
Xiao Na Li ◽  
Bing Hu ◽  
Chuang Dong ◽  
Xin Jiang
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Room Temperature ◽  
Structural Evolution ◽  
Radio Frequency Magnetron Sputtering ◽  
Transmission Electron ◽  
Direct Band ◽  
The Stability ◽  
Sputtering System

Fe/Si multi-layer films were fabricated on Si (100) substrates utilizing radio frequency magnetron sputtering system. Si/β-FeSi2 structure was found in the films after the deposition. Structural characterization of Fe-silicide sample was performed by transmission electron microscopy, to explore the dependence of the microstructure of β-FeSi2 film on the preparation parameters. It was found that β-FeSi2 particles were formed after the deposition without annealing, whose size is less than 20nm ,with a direct band-gap of 0.94eV in room temperature. After annealing at 850°C, particles grow lager, however the stability of thin films was still good.

scholarly journals Morphological and Structural Evolution of Chemically Deposited Epitaxially LaNiO3 Thin Films

Coatings ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1376
Author(s):  
Mircea Nasui ◽  
Ramona Bianca Sonher ◽  
Ecaterina Ware ◽  
Andrada Daniel ◽  
Traian Petrisor ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Analyses ◽  
Structural Evolution ◽  
Precursor Solution ◽  
Solution Deposition ◽  
Chemical Solution Deposition Method ◽  
Out Of Plane ◽  
Optimal Surface ◽  
Decomposition Behavior ◽  
Surface Morphologies

We report the preparation and characterization of epitaxial LaNiO3 (LNO) thin films by chemical solution deposition method using lanthanum and nickel acetylacetonates as starting reagents dissolved in propionic acid. In order to obtain further information regarding the decomposition behavior of the film, the precursor solution was dried to obtain the precursor powder, which was investigated by thermal analyses and X-ray diffraction measurements (XRD). The LNO perovskite thin films were deposited by spin coating on SrTiO3(100) single crystal substrates. A detailed study with different crystallization temperatures (600–900 °C) at two different heating ramps (5 and 10 °C/min) was performed. Oriented LaNiO3 thin films with good out-of-plane textures were obtained with optimal surface morphologies.

Heat-activated structural evolution of sol-gel-derived ZnO thin films

2008 ◽  
Vol 310 (4) ◽  
pp. 816-823 ◽  
Author(s):  
M.W. Zhu ◽  
J.H. Xia ◽  
R.J. Hong ◽  
H. Abu-Samra ◽  
H. Huang ◽  
...  
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Structural Evolution ◽  
Zno Thin Films

Cross-correlated humidity-dependent structural evolution of Nafion thin films confined on a platinum substrate

Soft Matter ◽  
2020 ◽  
Vol 16 (5) ◽  
pp. 1190-1200 ◽  
Author(s):  
Udit N. Shrivastava ◽  
Kota Suetsugu ◽  
Shusaku Nagano ◽  
Helmut Fritzsche ◽  
Yuki Nagao ◽  
...  
Keyword(s):  
Thin Films ◽  
Structural Evolution ◽  
Structure And Properties

We cross-correlate the hydration-dependent structure and properties – microscopic and macroscopic – of a thin Nafion ionomer film on an electrochemically pertinent Pt substrate.

Determination of growth regimes of Pd nanostructures on c-plane sapphire by the control of deposition amount at different annealing temperatures

2017 ◽  
Vol 19 (23) ◽  
pp. 15084-15097 ◽  
Author(s):  
Sundar Kunwar ◽  
Mao Sui ◽  
Puran Pandey ◽  
Quanzhen Zhang ◽  
Ming-Yu Li ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Solid State ◽  
Structural Evolution ◽  
Pd Nanoparticles ◽  
Annealing Temperatures ◽  
Deposition Amount ◽  
Sputter Deposited ◽  
Different Thickness

Semi-spherical and irregular Pd nanoparticles and voids are fabricated on sapphire(0001) by the solid-state dewetting of sputter-deposited Pd thin films at different thickness and temperature. The structural evolution, surface morphology transformation and optical properties of Pd nanostructures are probed.

Structural Evolution and Optical Properties of TiO2 Thin Films Prepared by DC-Reactive Sputtering Technique

2013 ◽  
Vol 699 ◽  
pp. 789-794 ◽  
Author(s):  
Laith Rabih ◽  
Sudjatmoko ◽  
Kuwat Triyana ◽  
Pekik Nurwantoro
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Band Gap ◽  
Structural Evolution ◽  
Film Structure ◽  
Tio2 Thin Films ◽  
Glass Substrates ◽  
Alternative Material ◽  
Dc Sputtering Technique ◽  
Economical Alternative

Titanium dioxide (TiO2 ) thin films have been deposited on glass substrates under various conditions by using a homemade reactive DC sputtering technique. The TiO2 has unique characteristics and economical alternative material for transparent conductivity oxide thin films compared with other materials. In this study, titanium (Ti) has been used as a target while argon (Ar) and oxygen (O22</subthin films has been measured by using a calibrated I-V meter. On the other hand, the transparency, microstructure and component of TiO2 thin films have been investigated respectively by using UV-VIS spectrophotometer, XRD and SEM (EDX). The thickness of TiO2 films, the grain size and the band gap have been also successfully estimated. As a result, the conductivity of films increased for Dt at 1 hour to 3.5 hours and decreased for Dt at 4 hours. It means that the optimum Dt was at about 3.5 hours. It may be related to the thickness (structures) of the films. In addition, the thickness and grain size increased by increasing Dt, while the band gap decreased when the film structure changed from non-crystalline structure to crystalizing structure.

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