scholarly journals Epitaxy of (GaN)1−x(ZnO)x Solid-Solution Thin Films with Widely Tunable Chemical Composition and Strong Visible Absorption

2018 ◽  
Vol 10 (4) ◽  
Author(s):  
Chang Yang ◽  
Yasushi Hirose ◽  
Takuto Wakasugi ◽  
Naoki Kashiwa ◽  
Hiroki Kawai ◽  
...  
Keyword(s):  
Thin Films ◽  
Solid Solution ◽  
Chemical Composition ◽  
Visible Absorption

The Precipitation of Si in AlCuSi Thin Films

1973 ◽  
Vol 31 ◽  
pp. 34-35 ◽  
Author(s):  
R. M. Anderson
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Heat Treatment ◽  
Solid Solution ◽  
Integrated Circuit ◽  
Copper Film ◽  
Solution Concentration ◽  
X Ray ◽  
Silicon Thin Films ◽  
Before And After

Aluminum-copper-silicon thin films have been considered as an interconnection metallurgy for integrated circuit applications. Various schemes have been proposed to incorporate small percent-ages of silicon into films that typically contain two to five percent copper. We undertook a study of the total effect of silicon on the aluminum copper film as revealed by transmission electron microscopy, scanning electron microscopy, x-ray diffraction and ion microprobe techniques as a function of the various deposition methods.X-ray investigations noted a change in solid solution concentration as a function of Si content before and after heat-treatment. The amount of solid solution in the Al increased with heat-treatment for films with ≥2% silicon and decreased for films <2% silicon.

Chemical composition effects in the thin films of the colossal magnetoresistive perovskite manganates grown by MOCVD

1999 ◽  
Vol 09 (PR8) ◽  
pp. Pr8-659-Pr8-666 ◽  
Author(s):  
O. Yu. Gorbenko ◽  
I. E. Graboy ◽  
A. A. Bosak ◽  
V. A. Amelichev ◽  
A. Yu. Ganin ◽  
...  
Keyword(s):  
Thin Films ◽  
Chemical Composition ◽  
Colossal Magnetoresistive ◽  
Composition Effects

scholarly journals Synthesis of N-CNT/TiO2 composites thin films: surface analysis and optoelectronic properties

2020 ◽  
Vol 183 ◽  
pp. 05002 ◽  
Author(s):  
Hamza Belkhanchi ◽  
Younes Ziat ◽  
Maryama Hammi ◽  
Charaf Laghlimi ◽  
Abdelaziz Moutcine ◽  
...  
Keyword(s):  
Thin Films ◽  
Surface Analysis ◽  
Sol Gel ◽  
Careful Analysis ◽  
Optoelectronic Properties ◽  
Spectroscopic Techniques ◽  
Large Area ◽  
Visible Absorption ◽  
Temperature Solution ◽  
Good Agreement

In this study, we have investigated the surface analysis and optoelectronic properties on the synthesis of N-CNT/TiO2 composites thin films, using sol gel method for a dye synthetized solar cell (DSSC) which is found to be simple and economical route. The titanium dioxide based solar cells are an exciting photovoltaic candidate; they are promising for the realization of large area devices. That can be synthetized by room temperature solution processing, with high photoactive performance. In the present work, we stated comparable efficiencies by directing our investigation on obtaining Sol Gel thin films based on N-CNT/TiO2, by dispersing nitrogen (N) doped carbon nanotubes (N-CNTs) powders in titanium tetraisopropoxyde (TTIP). The samples were assessed in terms of optical properties, using UV—visible absorption spectroscopic techniques. After careful analysis of the results, we have concluded that the mentioned route is good and more efficient in terms of optoelectronic properties. The gap of “the neat” 0.00w% N-CNT/TiO2 is of 3eV, which is in a good agreement with similar gap of semiconductors. The incorporated “w%NCNTs” led to diminishing the Eg with increasing N-CNTs amount. These consequences are very encouraging for optoelectronic field.

Chemical composition, crystallographic structure and impedance spectroscopy of titanium oxynitride TiNxOy thin films

2011 ◽  
Vol 192 (1) ◽  
pp. 693-698 ◽  
Author(s):  
M. Radecka ◽  
E. Pamula ◽  
A. Trenczek-Zajac ◽  
K. Zakrzewska ◽  
A. Brudnik ◽  
...  
Keyword(s):  
Thin Films ◽  
Chemical Composition ◽  
Impedance Spectroscopy ◽  
Crystallographic Structure

Microstructural Study of Thin Films CuFe Obtained by Thermal Evaporation of Nanostructured Milled Powder

2017 ◽  
Vol 47 ◽  
pp. 71-78
Author(s):  
H. Mechri ◽  
Ahmed Haddad ◽  
M. Zergoug ◽  
Mohammed Azzaz
Keyword(s):  
Thin Films ◽  
Solid Solution ◽  
Physical Vapor Deposition ◽  
Thermal Evaporation ◽  
Supersaturated Solid Solution ◽  
Milled Powder ◽  
Mechanically Alloyed ◽  
Glass Substrates ◽  
Milling Duration ◽  
Tungsten Boat

Commercial copper and iron powders were used as starting materials. These powders were mechanically alloyed to obtain Cu(100-x) Fex supersaturated mixture. The milling duration was chosen in such a way as to obtain a nanostructured mixture and to form a supersaturated solid solution of CuFe; the powder mixture was used to deposit CuFe on a glass substrate. The elaboration of our films has been carried out using thermal evaporation process (physical vapor deposition) under 1 × 10-6 mbar vacuum from an electrically heated tungsten boat, using the supersaturated solid solution Cu(100-x) Fex powder obtained by mechanical alloying. The films deposition has been done on glass substrates. In this study, we present the composition effect on the structural and magnetic proprieties of Cu(100-x) Fex powder and thin films. The chemical composition, structural and magnetic proprieties of milled powders and thin films were examined by SEM, TEM, XRD, XRF and VSM.

Fabrication of p-type ferrimagnetic semiconductor thin films based on FeTiO3–Fe2O3 solid solution

2007 ◽  
Vol 310 (2) ◽  
pp. 2105-2107 ◽  
Author(s):  
Hajime Hojo ◽  
Koji Fujita ◽  
Katsuhisa Tanaka ◽  
Kazuyuki Hirao
Keyword(s):  
Thin Films ◽  
Solid Solution ◽  
Semiconductor Thin Films ◽  
P Type

Synthesis and Characterizations of Strontium Substituted Hydroxyapatite Thin Films

2010 ◽  
Vol 93-94 ◽  
pp. 231-234
Author(s):  
B. Hongthong ◽  
Satreerat K. Hodak ◽  
Sukkaneste Tungasmita
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Chemical Composition ◽  
Spin Coating ◽  
Phase Structure ◽  
Sol Gel ◽  
Cross Linking ◽  
X Ray Diffraction ◽  
X Ray ◽  
Sol Gel Process

Strontium substituted hydroxyapatite(SrHAp) were fabricated both in the form of powder as reference and thin film by using inorganic precursor reaction. The sol-gel process has been used for the deposition of SrHAp layer on stainless steal 316L substrate by spin coating technique, after that the films were annealed in air at various temperatures. The chemical composition of SrHAp is represented (SrxCa1-x)5(PO4)3OH, where x is equal to 0, 0.5 and 1.0. Investigations of the phase structure of SrHAp were carried out by using X-ray diffraction technique (XRD). The results showed that strontium is incorporated into hydroxyapatite where its substitution for calcium increases in the lattice parameters, and Sr3(PO4)2 can be detected at 900°C. The SEM micrographs showed that SrHAp films exhibited porous structure before develop to a cross-linking structure.

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