Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Gönül Özen"'
Publikováno v:
Volume: 10, Issue: 1 55-62
Journal of the Turkish Chemical Society Section A: Chemistry
Journal of the Turkish Chemical Society Section A: Chemistry
© 2023, Turkish Chemical Society. All rights reserved.Rare earth (Yb3+, Ho3+, Tm3+) yttrium disilicate phosphors were produced by sol-gel technique and heated at 1050 °C temperature. The sizes of the phosphors vary between 20-30 nm according to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a83b77f87938a591f455fc98361e2c6c
https://dergipark.org.tr/tr/pub/jotcsa/issue/73332/1159026
https://dergipark.org.tr/tr/pub/jotcsa/issue/73332/1159026
Publikováno v:
Physica B: Condensed Matter. 509:41-45
SiO2 glasses doped with ZnSe quantum dots and Nd3+ ions with compositions of (1% ZnSe–99% SiO2), (2% ZnSe–98% SiO2) and (2% ZnSe–97% SiO2–1% Nd3+) were synthesized by sol-gel method and then annealed at 683 K and 873 K for one hour. X-Ray dif
Publikováno v:
Optical Materials. 42:281-286
The introduction of Nd 3+ dopants in yttrium oxide nano-powders at concentrations as high as 10% has motivated the study of their emission as function of concentration. We have studied the luminescence of these systems as function of temperature, par
Publikováno v:
Journal of Luminescence. 158:464-468
We have studied the line positions and widths of R lines luminescence of nanopowder samples of Y 3 Al 5 O 12 : Cr 3+ particles with diameters ranging from about 28 to 250 nm. For each sample we have measured accurately the emission spectrum from 30 K
Publikováno v:
Optics and Spectroscopy. 118:131-134
We report some unexpected occurrences that have accompanied our recent discovery of white light emission from infrared light excited doped and nominally un-doped oxide nano-powders.
Publikováno v:
Materials Research Bulletin. 60:562-565
Excitation and emission spectra of a visible room-temperature Er{sup 3+} ions luminescence from powders. - Highlights: • This is the first report on spectroscopic properties of CdNb{sub 2}O{sub 6}:Er{sup 3+}. • The crystalline sizes are affected
Publikováno v:
Quantum Electronics. 44:1071-1076
We have detected and analysed narrow high-contrast coherent population trapping (CPT) resonances, which are induced in absorption of a weak monochromatic probe light beam by counterpropagating two-frequency pump radiation in a cell with rarefied caes
Publikováno v:
IEEE Photonics Journal. 6:1-17
We report the production of a broad band (ranging from 400 to 900 nm) white light following the monochromatic infrared light (803.5 and 975 nm) excitation of both nominally un-doped and Nd 3+ -doped Y 2 O 3 nano-powders, even up to 20% of Nd 3+ conte
Publikováno v:
IEEE Photonics Journal. 6:1-11
Synthetic garnet nanopowders of Y 3 Al 5 O 12 (YAG) and Gd 3 Ga 5 O 12 (GGG) were produced, and the occurrence of a broadband bright visible emission by nominally undoped YAG and GGG and Cr 3+ doped GGG, depending on the environment pressure, as well
Publikováno v:
Particuology. 14:19-23
Yttrium oxide nanopowder was prepared by a novel technique using an alginate biopolymer as a precursor. The technique is based on thermal decomposition of an yttrium alginate gel, which is produced in the form of beads by ionic gelation between the y