FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4361275993> ?p ?o ?g. }

• W4361275993 endingPage "119825" @default.
• W4361275993 startingPage "119825" @default.
• W4361275993 abstract "The present work reports on the synthesis, structural and optical properties of Ge2Y2-xEuxO7 composition powders, with x ranging from 0.0 to 0.16 (from 0.0 to 4.0 mol% Eu3+). We synthesized stable and transparent sols, homogeneous gels, and powders treated at 1100 °C by a soft chemical route, and the effect of Eu3+ concentrations was evaluated. X-ray diffraction (XRD), infrared vibrational spectroscopy (FTIR), Raman spectroscopy, diffuse reflectance spectroscopy (DRS), emission and excitation photoluminescence spectroscopy (PL, PLE), decay curves of emission intensity as a function of time and quantum yield were obtained. An annealing temperature of 1100 °C was enough to obtain a single Ge2Y2O7 crystalline phase and the decrease of Χ2 value (from 2.32 to 1.74) with the increase of Eu3+ doping in the matrix, observed with the Rietveld refinement of the XRD patterns of the samples, is due to the crystallization process. Diffuse reflectance spectra and optical bandgap of 4.7 eV for Ge2Y0.88Eu0.12O7 (3.0 mol% Eu3+) – determined by Kubelka- Munk model – showed the good optical quality of the samples, which were considered non-conducting. All doped samples possessed visible photoluminescence emission from Eu3+ ions under excitation at 394 nm, with higher emissions occurring in the red region from 5D0 → 7F2 transition, with R/O relation equal to 2.6 and purity of red color higher than 85 % for the sample with x = 0.012. Analyzing photoluminescence emission spectra, the lifetime values and Judd-Ofelt parameters, we determined that Eu3+ occupied two different sites of the Ge2Y2O7 host matrix, replacing Y3+ ions, with the quenching concentration occurring between x = 0.12 and x = 0.16. The average decay lifetime of 5D0 level from Eu3+ was around 1.66 ms, with average quantum efficiency around of 48 % and an internal quantum yield equal to 7.17 %. Moreover, we evaluated their emission luminescence properties upon 394 nm excitation to explore for the first time the possibility of using this material in thermal sensing applications." @default.
• W4361275993 created "2023-03-31" @default.
• W4361275993 creator A5033218823 @default.
• W4361275993 creator A5076406779 @default.
• W4361275993 date "2023-08-01" @default.
• W4361275993 modified "2023-09-27" @default.
• W4361275993 title "The influence of Eu3+ doping on the optical and structural properties of the Ge2Y2O7 crystalline phase through a soft chemical process" @default.
• W4361275993 cites W1646405516 @default.
• W4361275993 cites W1775780108 @default.
• W4361275993 cites W1782394495 @default.
• W4361275993 cites W1971969886 @default.
• W4361275993 cites W1982249699 @default.
• W4361275993 cites W1985727302 @default.
• W4361275993 cites W2009657818 @default.
• W4361275993 cites W2010516220 @default.
• W4361275993 cites W2013791266 @default.
• W4361275993 cites W2029385137 @default.
• W4361275993 cites W2034701021 @default.
• W4361275993 cites W2036869968 @default.
• W4361275993 cites W2037645788 @default.
• W4361275993 cites W2057761236 @default.
• W4361275993 cites W2059340298 @default.
• W4361275993 cites W2061398774 @default.
• W4361275993 cites W2079789012 @default.
• W4361275993 cites W2081217055 @default.
• W4361275993 cites W2081284697 @default.
• W4361275993 cites W2086888677 @default.
• W4361275993 cites W2091063438 @default.
• W4361275993 cites W2092172731 @default.
• W4361275993 cites W2109880589 @default.
• W4361275993 cites W2117441206 @default.
• W4361275993 cites W2126267263 @default.
• W4361275993 cites W2132864504 @default.
• W4361275993 cites W2135180791 @default.
• W4361275993 cites W2158178334 @default.
• W4361275993 cites W2544197398 @default.
• W4361275993 cites W2604197564 @default.
• W4361275993 cites W2768080432 @default.
• W4361275993 cites W2777688880 @default.
• W4361275993 cites W2796023476 @default.
• W4361275993 cites W2888699665 @default.
• W4361275993 cites W2949552653 @default.
• W4361275993 cites W2972544442 @default.
• W4361275993 cites W2984720364 @default.
• W4361275993 cites W4238129914 @default.
• W4361275993 doi "https://doi.org/10.1016/j.jlumin.2023.119825" @default.
• W4361275993 hasPublicationYear "2023" @default.
• W4361275993 type Work @default.
• W4361275993 citedByCount "0" @default.
• W4361275993 crossrefType "journal-article" @default.
• W4361275993 hasAuthorship W4361275993A5033218823 @default.
• W4361275993 hasAuthorship W4361275993A5076406779 @default.
• W4361275993 hasConcept C113196181 @default.
• W4361275993 hasConcept C115624301 @default.
• W4361275993 hasConcept C115645028 @default.
• W4361275993 hasConcept C120665830 @default.
• W4361275993 hasConcept C121332964 @default.
• W4361275993 hasConcept C1276947 @default.
• W4361275993 hasConcept C148869448 @default.
• W4361275993 hasConcept C156328458 @default.
• W4361275993 hasConcept C159242009 @default.
• W4361275993 hasConcept C160892712 @default.
• W4361275993 hasConcept C161790260 @default.
• W4361275993 hasConcept C178790620 @default.
• W4361275993 hasConcept C181966813 @default.
• W4361275993 hasConcept C185592680 @default.
• W4361275993 hasConcept C192562407 @default.
• W4361275993 hasConcept C203036418 @default.
• W4361275993 hasConcept C32891209 @default.
• W4361275993 hasConcept C40003534 @default.
• W4361275993 hasConcept C43617362 @default.
• W4361275993 hasConcept C4839761 @default.
• W4361275993 hasConcept C49040817 @default.
• W4361275993 hasConcept C55493867 @default.
• W4361275993 hasConcept C57863236 @default.
• W4361275993 hasConcept C62520636 @default.
• W4361275993 hasConcept C65165184 @default.
• W4361275993 hasConcept C8010536 @default.
• W4361275993 hasConcept C85080765 @default.
• W4361275993 hasConcept C96141758 @default.
• W4361275993 hasConceptScore W4361275993C113196181 @default.
• W4361275993 hasConceptScore W4361275993C115624301 @default.
• W4361275993 hasConceptScore W4361275993C115645028 @default.
• W4361275993 hasConceptScore W4361275993C120665830 @default.
• W4361275993 hasConceptScore W4361275993C121332964 @default.
• W4361275993 hasConceptScore W4361275993C1276947 @default.
• W4361275993 hasConceptScore W4361275993C148869448 @default.
• W4361275993 hasConceptScore W4361275993C156328458 @default.
• W4361275993 hasConceptScore W4361275993C159242009 @default.
• W4361275993 hasConceptScore W4361275993C160892712 @default.
• W4361275993 hasConceptScore W4361275993C161790260 @default.
• W4361275993 hasConceptScore W4361275993C178790620 @default.
• W4361275993 hasConceptScore W4361275993C181966813 @default.
• W4361275993 hasConceptScore W4361275993C185592680 @default.
• W4361275993 hasConceptScore W4361275993C192562407 @default.
• W4361275993 hasConceptScore W4361275993C203036418 @default.
• W4361275993 hasConceptScore W4361275993C32891209 @default.
• W4361275993 hasConceptScore W4361275993C40003534 @default.

• next