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120 resultados encontrados.

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Optical properties of CaCO3-filled poly(ethylene-co-vinyl acetate) films
Artículo
Acceso abierto Artículo CONICET Digital
Larena, Alicia et al · Elsevier Science · 2001 · ISSN 0925-3467
Optical properties, such as transmittance and diffuse reflectance in the range of 200-800 nm, of hot-pressed films of poly(ethylene-co-vinyl acetate) filled with up to 10 wt% of calcium carbonate were analyzed. A linear ...
Idioma eng
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Open Access
Optical Properties and Electronic Structure of Amorphous Germanium
Artículo
Página del recurso disponible Artículo OpenAlex
J. Tauc; R. Grigorovici; A. Vancu · physica status solidi (b) · 1966
Abstract The optical constants of amorphous Ge are determined for the photon energies from 0.08 to 1.6 eV. From 0.08 to 0.5 eV, the absorption is due to k ‐conserving transitions of holes between the valence bands as i...
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Effect of silver ions on the optical properties of colloidal solutions of CdS/L-Cysteine nanoparticles
Artículo
Acceso abierto Artículo DOAJ
O. Krupko et al · Vasyl Stefanyk Carpathian National University · 2024 · ISSN 1729-4428
The synthesis of CdS/Ag+ heterostructures was carried out based on colloidal solutions of CdS nanoparticles stabilized by the amino acid L-cysteine ​​by the method of ion substitution and co-precipitation from aqueou...
LCC TENDOlBoeXNpY3M~Idioma eng
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Influence of the spray pyrolysis seeding and growth parameters on the structure and optical properties of ZnO nanorod arrays
Artículo
Acceso abierto Artículo Repositorio UNSAM
Rodríguez, Juan et al · Elsevier Science BV · 2015 · ISSN 0254-0584
ZnO nanorods (NRs) were grown on fluorine doped tin oxide (FTO) substrates at low temperatures (90 °C) from Zn2+ precursors in alkaline media previously seeded with ZnO nanoparticles. These were deposited onto the FTO s...
Idioma eng
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Magneto-optical properties of two – layer film systems based on Fe and Pt
Artículo
Material complementario disponible Artículo DOAJ
O.V. Bezdidko et al · Vasyl Stefanyk Carpathian National University · 2021 · ISSN 1729-4428
The paper shows the experimental results of the study of magneto - optical properties and phase composition of thin films and multilayers  based on Fe and Pt. Samples were obtained in a high-vacuum chamber (10–8 Pa) b...
LCC TENDOlBoeXNpY3M~Idioma eng
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Material complementario
Study Optical Properties of Nickel Oxide Syntheses by Chemical Spray Pyrolysis
Artículo
Acceso abierto Artículo DOAJ
Noora Senan Khairallah et al · University of Mosul, College of Education for Pure Science · 2026 · ISSN 1812-125X
In this study, thin nickel oxide nanomembranes were obtained using thermal chemical spraying technology, which involves spraying a green-colored chemical solution at a rate of 30 sprays onto glass substrates with an area...
LCC TENDOkVkdWNhdGlvbg~~; LCC:Science (General)Idioma eng
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Morphology and optical properties of CdS thin films prepared by Physical Vapor Deposition method
Artículo
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I.V. Vakaliuk et al · Vasyl Stefanyk Carpathian National University · 2022 · ISSN 1729-4428
The optical properties of cadmium sulfide thin films obtained by thermal evaporation in vacuum were studied. The stoichiometric compositions of the binary compound previously synthesized from high-purity powders of the i...
LCC TENDOlBoeXNpY3M~Idioma eng
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Phase equilibria, glass formation and optical properties of glasses in the Ag2S–BIVS2–CV2S3 systems (BIV–Ge, Sn; CV–As, Sb)
Artículo
Acceso abierto Artículo DOAJ
О.P. Berezniuk et al · Vasyl Stefanyk Carpathian National University · 2022 · ISSN 1729-4428
Phase equilibria of the quasi-ternary systems Ag2S–BIVS2–CV2S3 (BIV– Ge, Sn; CV–As, Sb) were investigated using phase analysis based on XRD. Isothermal sections at 500 Kand glass formation regions in the respecti...
LCC TENDOlBoeXNpY3M~Idioma eng
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Study of the Effect of Irradiation on Some Optical Properties of Cadmium Oxide Films Prepared by the Thermal Chemical Spraying Method
Artículo
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Mohammed Sinjar et al · University of Mosul, College of Education for Pure Science · 2025 · ISSN 1812-125X
In this study, thin films of cadmium oxide (CdO) were synthesized using the chemical thermal decomposition method. The films were deposited onto a glass substrate measuring 2.5 cm x 2.5 cm x 1 mm at a temperature of 400&...
LCC TENDOkVkdWNhdGlvbg~~; LCC:Science (General)Idioma eng
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Effect of B2O3 addition on optical properties of Zirconium and Hafnium tetrafluorides in polycrystalline and thin film states
Artículo
Acceso abierto Artículo DOAJ
V.F. Zinchenko et al · Vasyl Stefanyk Carpathian National University · 2023 · ISSN 1729-4428
For the first time, the effect of B2O3 additive on the IR transmission spectra of ZrF4 and HfF4 samples and the optical properties of the coatings obtained from them was investigated. A significant difference in the shap...
LCC TENDOlBoeXNpY3M~Idioma eng
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Effect of deposition time on the optical properties of CdSe nanostructured films
Artículo
Acceso abierto Artículo DOAJ
H.A. Ilchuk et al · Vasyl Stefanyk Carpathian National University · 2025 · ISSN 1729-4428
Cadmium selenide nanostructured films were prepared using high-frequency magnetron sputtering method. All samples were deposited on quartz substrates in disk form with a radius of 16 mm. The temperature of the substrate ...
LCC TENDOlBoeXNpY3M~Idioma eng
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Influence of metal atom substitution on the electronic and optical properties of solid-state Cd0.75X0.25Te (X= Cu, Ag and Au) solutions
Artículo
Acceso abierto Artículo DOAJ
A.I. Kashuba · Vasyl Stefanyk Carpathian National University · 2023 · ISSN 1729-4428
The solid-state Cd0.75X0.25Te (X= Cu, Ag, and Au) solutions crystallize in the cubic structure and are studied in the framework of density functional theory. The theoretical first-principle calculations of the electronic...
LCC TENDOlBoeXNpY3M~Idioma eng
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Structural and Optical Properties of Co and Ni Doped ZnO Thin Films Prepared by RF Magnetron Sputtering
Artículo
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I. D. Stolyarchuk et al · Vasyl Stefanyk Carpathian National University · 2018 · ISSN 1729-4428
We have reported the effect of Co and Ni doping on structural and optical properties of ZnO thin films prepared by RF reactive sputtering technique. The composite targets were formed by mixing and pressing of ZnO, Mn3O4,...
LCC TENDOlBoeXNpY3M~Idioma eng
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The Effect of the Thermal Introduction of NaNO<sub>2</sub> on the Optical Properties of Indium and Gallium Monoselenides
Artículo
Acceso abierto Artículo DOAJ
Z. D. Kovalyuk et al · Vasyl Stefanyk Carpathian National University · 2017 · ISSN 1729-4428
The effect of the thermal introduction of NaNO&lt;sub&gt;2&lt;/sub&gt; on the optical properties of indium and gallium monoselenides was investigated. The transmission spectra of InSe and GaSe and their NaNO&lt;sub&gt;2&...
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Tuning optical properties of densified silica glass via high pressure and ultrafast laser excitation
Artículo
Acceso abierto Artículo DOAJ
Misora Tsubone et al · Nature Portfolio · 2026 · ISSN 1884-4057
Abstract Silica glass exhibits diverse structural configurations accompanied by densification under varying temperature and pressure conditions; these factors significantly influence its optical properties, such as the r...
LCC LCC:Materials of engineering and construction. Mechanics of materials; TENDOkJpb3RlY2hub2xvZ3k~Idioma eng
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Meso-chiral optical properties of plasmonic nanoparticles: uncovering hidden chirality
Artículo
Acceso abierto Artículo DOAJ
Xie Yuanyang et al · Wiley · 2025 · ISSN 2192-8614
Molecular chirality plays an important role in chemistry and biology, allows control of biological interactions, affects drug efficacy and safety, and promotes synthesis of new materials. In general, chirality manifests ...
LCC TENDOlBoeXNpY3M~Idioma eng
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Synthesis, Structural and Optical Properties of PVP Encapsulated CdS Nanoparticles
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L. Saravanan et al · SAGE Publishing · 2011 · ISSN 1847-9804
Highly monodispersed CdS nanoparticles using polyvinyl pyrrolidone (PVP) as the capping agent were synthesised by chemical coprecipitation method. The surface&#8208;modified cadmium sulfide nanoparticles were found to be...
LCC LCC:Materials of engineering and construction. Mechanics of materials; TENDOlRlY2hub2xvZ3k~Idioma eng
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The Optical Properties of Metal Nanoparticles: The Influence of Size, Shape, and Dielectric Environment
Artículo
Material complementario disponible Artículo OpenAlex
K. Lance Kelly; Eduardo A. Coronado; Lin Lin Zhao; George C. Schatz · The Journal of Physical Chemistry B · 2002
The optical properties of metal nanoparticles have long been of interest in physical chemistry, starting with Faraday's investigations of colloidal gold in the middle 1800s. More recently, new lithographic techniques as ...
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Optical Readout of Silica Mesoporous Thin Films Mechanical Properties Using Plasmonic Nanoantennas
Artículo
Acceso abierto Artículo CONICET Digital
Boggiano, Hilario Daniel et al · American Chemical Society · 2023 · ISSN 3998-4005
In this work, we apply the recently developed frequency shift of nanoantennas (FRESA) technique to measure the Young’s modulus of thin mesoporous films at GHz frequencies as a function of porosity with local precision....
Idioma eng
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Optical mechanisms behind vitrinite reflectance suppression caused by strong anisotropy: A case study of contact metamorphic coals
Artículo
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Yanfei AN et al · Editorial Office of Coal Geology & Exploration · 2026 · ISSN 1001-1986
ObjectiveFor vitrinite with weak anisotropy, which proves uniaxial and optically negative, replacing random vitrinite reflectance (Rran) with the maximum vitrinite reflectance (Rmax) allows for the accurate correction of...
LCC TENDOkdlb2xvZ3k~; TENDOk1pbmluZyBlbmdpbmVlcmluZy4gTWV0YWxsdXJneQ~~Idioma zho
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Optical coherence tomography imaging of oral benign lesions and comparison of histopathological examination
Artículo
Material complementario disponible Artículo DOAJ
Öçbe Melisa et al · Balkan Stomatological Society · 2023 · ISSN 2335-0245
Background/Aim: Optical coherence tomography (OCT) is an optical imaging method used in the examination of superficial tissues in ophthalmology, cardiology, dermatology and dentistry. It can provide high resolution micro...
LCC TENDOkRlbnRpc3RyeQ~~Idioma eng
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Formation of Mn-doped SnO2 Nanoparticles Via the Microwave Technique: Structural, Optical and Electrical Properties
Artículo
Acceso abierto Artículo DOAJ
Numan Salah et al · SAGE Publishing · 2016 · ISSN 1847-9804
Ultrafine pure and Mn-doped SnO2 nanoparticles (NPs) were synthesized via the microwave technique. They were produced using tin chloride and hexamethylenetetramine at the molar ratio of 1:20. The concentrations of Mn in ...
LCC LCC:Materials of engineering and construction. Mechanics of materials; TENDOlRlY2hub2xvZ3k~Idioma eng
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MXenes: focus on optical and electronic properties and corresponding applications
Artículo
Material complementario disponible Artículo DOAJ
Wang Yifan et al · Wiley · 2020 · ISSN 2192-8606
The discovery of graphene, the first two-dimensional (2D) material, has caused an upsurge, as this kind of material revealed a tremendous potential of application in areas such as energy storage, electronics, and gas sep...
LCC TENDOlBoeXNpY3M~Idioma eng
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Effect of Optical Feedback on the Modulation Properties of AlGaInP Semiconductor Laser
Artículo
Acceso abierto Artículo DOAJ
Musab Ahmed · University of Mosul, College of Education for Pure Science · 2008 · ISSN 1812-125X
LCC TENDOkVkdWNhdGlvbg~~; LCC:Science (General)Idioma eng
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