Results 11 to 20 of about 222,033 (262)

Structural, Optical and Photocatalytic Properties of Cerium Oxide Nanoparticles [PDF]

open access: yesNanochemistry Research
Sphere-like cerium dioxide nanoparticles were synthesized by a hydrothermal method. The resulting samples were investigated using various techniques, including X-ray powder diffraction spectroscopy (XRD), high-resolution scanning electron microscopy ...
Anbuvannan Mari   +4 more
doaj   +1 more source

New Non-Fullerene Acceptor with Extended Conjugation of Cyclopenta [2,1-b:3,4-b’] Dithiophene for Organic Solar Cells

open access: yesMolecules, 2022
Herein, we design and characterize 9-heterocyclic ring non-fullerene acceptors (NFAs) with the extended backbone of indacenodithiophene by cyclopenta [2,1-b:3,4-b’] dithiophene (CPDT).
Cheng Sun   +12 more
doaj   +1 more source

Significantly Improved Electrical Breakdown Strength of Natural Ester Liquid Dielectrics by Doping Ultraviolet Absorbing Molecules

open access: yesIEEE Access, 2019
In this paper, we experimentally demonstrate that molecules with maximum absorption wavelength corresponding to the first excitation energy of base liquid molecules are able to significantly improve the electrical performances of natural ester oils.
Suning Liang   +5 more
doaj   +1 more source

A phenomenological model for the X-ray spectrum of Nova V2491 Cygni [PDF]

open access: yes, 2011
The X-ray flux of Nova V2491 Cyg reached a maximum some forty days after optical maximum. The X-ray spectrum at that time, obtained with the RGS of XMM-Newton, shows deep, blue-shifted absorption by ions of a wide range of ionization.
C. Pinto   +37 more
core   +4 more sources

UV Absorption Spectrum for Dissolved Oxygen Monitoring: A Low-Cost Proposal for Water Quality Monitoring

open access: yesPhotonics, 2023
One of the key indicators of water quality is dissolved oxygen. Even though oxygen is important in environmental monitoring, the sensors for dissolved oxygen are expensive and require periodic maintenance due to the use of membranes.
Aika Miura   +3 more
doaj   +1 more source

OPTICAL PROPERTIES OF AMORPHOUS THIN FILMS OF SODIUM-TUNGSTEN OXIDE BRONZES

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
The spectral dependences were measured of the optical density of amorphous thin films of sodium-tungsten oxide bronze of the tetragonal structure and the composition Na0,3WO3, condensed on glass substrates, thermostated at temperatures of 373, 473 and ...
B.M. Khubolov
doaj   +1 more source

Fabrication of perfect plasmonic absorbers for blue and near-ultraviolet lights using double-layer wire-grid structures

open access: yesJournal of the European Optical Society-Rapid Publications, 2021
This study proposes using double-layer wire-grid structures to create narrow-band, perfect plasmonic absorbers, which depend on polarization, for the short-wavelength visible and near-ultraviolet regions of the electromagnetic spectrum.
Atsushi Motogaito   +2 more
doaj   +1 more source

Cosmic Histories of Stars, Gas, Heavy Elements, and Dust [PDF]

open access: yes, 1998
We present a set of coupled equations that relate the stellar, gaseous, chemical, and radiation constituents of the universe averaged over the whole galaxy population. Using as input the available data from quasar absorption-line surveys, optical imaging
Armand C.   +19 more
core   +3 more sources

New stabilizer Cellulose Nano Rods-Zinc Oxide (CNR-ZnO) material for nanocomposite synthesis and anti-bacterial applications

open access: yesAl-Mustansiriyah Journal of Science, 2020
Zinc oxide (ZnO) nanorods were fabricated using Cellulose Nano Rods (CNR) as a new stabilizer material. Synthesized of ZnO-CNR nanocomposites, with a molar ratio of ZnO to CNR (1/2g) were prepared in distilled water. The nanocomposites were distinguished
Wisam Jafer Aziz   +2 more
doaj   +1 more source

Review Paper: Investigation of Linear and Nonlinear Behaviors of Silver Oxide Nanoparticles In Graphene Oxide Solution [PDF]

open access: yesفیزیک کاربردی ایران, 2023
In this research, linear and non-linear optical properties of silver oxide nanoparticles in graphene oxide medium have been investigated. First, graphene oxide is prepared by the improved method of Hammers.
Saeed Maymanat Abady   +2 more
doaj   +1 more source

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