Ellipsometric characterization of MoSe2 thin layers obtained by thermal treatment of molybdenum in selenium vapor

2017 ◽  
Vol 421 ◽  
pp. 310-314
Author(s):  
Ayaz Bayramov ◽  
Yegana Aliyeva ◽  
Gurban Eyyubov ◽  
Eldar Mammadov ◽  
Zakir Jahangirli ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Thin Layers ◽  
Ellipsometric Characterization ◽  
Selenium Vapor

Infrared ellipsometric characterization of SixNy films on textured Si photovoltaic cells

2008 ◽  
Author(s):  
Mario Fernando. Saenger ◽  
Martin Schädel ◽  
Tino Hofmann ◽  
James Hilfiker ◽  
Jianing Sun ◽  
...  
Keyword(s):  
Photovoltaic Cells ◽  
Ellipsometric Characterization

scholarly journals Azimuthal Anchoring Strength in Photopatterned Alignment of a Nematic

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 675
Author(s):  
H. Nilanthi Padmini ◽  
Mojtaba Rajabi ◽  
Sergij V. Shiyanovskii ◽  
Oleg D. Lavrentovich
Keyword(s):  
Liquid Crystal ◽  
Point Defects ◽  
Elastic Energy ◽  
Separation Distance ◽  
Thin Layers ◽  
Uv Exposure ◽  
Surface Anchoring ◽  
Anchoring Strength ◽  
Spatially Varying

Spatially-varying director fields have become an important part of research and development in liquid crystals. Characterization of the anchoring strength associated with a spatially-varying director is difficult, since the methods developed for a uniform alignment are seldom applicable. Here we characterize the strength of azimuthal surface anchoring produced by the photoalignment technique based on plasmonic metamsaks. The measurements used photopatterned arrays of topological point defects of strength +1 and −1 in thin layers of a nematic liquid crystal. The integer-strength defects split into pairs of half-integer defects with lower elastic energy. The separation distance between the split pair is limited by the azimuthal surface anchoring, which allows one to determine the strength of the latter. The strength of the azimuthal anchoring is proportional to the UV exposure time during the photoalignment of the azobenzene layer.

scholarly journals Optical characterization of photosensitive AMTIR-1 chalcogenide thin layers deposited by electron beam deposition

2016 ◽  
Vol 442 ◽  
pp. 22-28 ◽  
Author(s):  
Alexandre Joërg ◽  
Fabien Lemarchand ◽  
Mengxue Zhang ◽  
Michel Lequime ◽  
Julien Lumeau
Keyword(s):  
Electron Beam ◽  
Optical Characterization ◽  
Thin Layers ◽  
Electron Beam Deposition ◽  
Beam Deposition

Study of the Bioactive Behavior of Thermally Treated Modified 58S Bioactive Glass

2008 ◽  
Vol 396-398 ◽  
pp. 131-134 ◽  
Author(s):  
Ourania Menti Goudouri ◽  
Xanthippi Chatzistavrou ◽  
Eleana Kontonasaki ◽  
Nikolaos Kantiranis ◽  
Lambrini Papadopoulou ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Bioactive Glass ◽  
Sol Gel ◽  
Bioactive Glasses ◽  
X Ray ◽  
Characteristic Temperatures ◽  
Calcium Silicates ◽  
Crystal Phases ◽  
Thermally Treated

Thermal treatment of bioactive glasses can affect their microstructure and thus their bioactivity. The aim of this study was the characterization of the thermally treated sol-gel-derived bioactive glass 58S at characteristic temperatures and the dependence of its bioactive behavior on the specific thermal treatment. The thermal behavior of the bioactive glass was studied by thermal analysis (TG/DTA). Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Diffractometry (XRD) were used for the characterization of the bioactive glass. The bioactive behavior in Simulated Body Fluid (SBF) was examined by Scanning Electron Microscopy (SEM-EDS) and FTIR. The major crystal phases after thermal treatment were Calcium Silicates, Wollastonite and Pseudowollastonite, while all thermally treated samples developed apatite after 48 hours in SBF. A slight enhancement of bioactivity was observed for the samples heated at the temperature range 910-970oC.

scholarly journals Synthesis and characterization of CdSe nanoparticles via thermal treatment technique

2017 ◽  
Vol 7 ◽  
pp. 1556-1562 ◽  
Author(s):  
Aeshah Salem ◽  
Elias Saion ◽  
Naif Mohammed Al-Hada ◽  
Halimah Mohamed Kamari ◽  
Abdul H. Shaari ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Cdse Nanoparticles ◽  
Synthesis And Characterization ◽  
Treatment Technique

scholarly journals Comparison characterization of copper selenide thin layers prepared on polyamide 6 films by sorption-diffusion method

2013 ◽  
Vol 11 (4) ◽  
pp. 636-643 ◽  
Author(s):  
Remigijus Ivanauskas ◽  
Vitalijus Janickis ◽  
Vitalija Jasulaitienė
Keyword(s):  
Phase Composition ◽  
Polyamide 6 ◽  
Copper Selenide ◽  
Thin Layers ◽  
Diffusion Method ◽  
Two Phases ◽  
Xrd Patterns ◽  
Sem Studies

AbstractSome earlier synthesized copper selenide (Cux Se) layers formed on the surface of polyamide 6 by sorption-diffusion method using potassium selenotrithionate (K2SeS2O6) as precursor of selenium were characterized by the XRD, XPS and SEM methods. According to the results of the SEM studies, the most uniform Cux Se layers form at the 2.5 h polyamide seleniumized duration at the temperature of 60°C. The thickness of layers, which dependeds on the duration of seleniumization, changed in the range of 0.8–3.2 µm. The XRD patterns of not previously studied Cux Se layers showed their phase composition of six copper selenides: Cu2Se, two phases of CuSe2, Cu3Se2, berzellianite, Cu2-x Se, and bellidoite Cu2Se. Analysis of the XRD and XPS data shows that the macrostructure and composition of the CuxSe layers depend on the conditions of formation of these layers.

Ellipsometric characterization of thin films and superlattices

1990 ◽  
Vol 5 (2) ◽  
pp. 285-289 ◽  
Author(s):  
J. Bremer ◽  
O. Hunderi ◽  
Kong Fanping
Keyword(s):  
Thin Films ◽  
Ellipsometric Characterization
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