FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2044091909> ?p ?o ?g. }

• W2044091909 abstract "Evolution with calcination temperature of Eu3+ sites in CeO2 nanocrystals is investigated by time-resolved photoluminescence spectroscopy. In the as-synthesized Eu3+ impregnated CeO2, most of Eu3+ ions reside on surface (S) sites. The Eu3+emission in S sites is broad and short-lived (τ = 240 μs) being dominated by the electric dipole (ED) 5D0-7F2 emission with little evidence for clustering. After calcination (between 500 and 1300 °C), Eu3+ is distributed on surface, cubic and up to three additional crystalline sites. Surface type emission could be detected until 1100 °C. In cubic sites, Eu3 substitute for the lattice Ce4+ with Oh symmetry (O sites). The emission of Eu3+ in O sites is characterized by relative long-lived (τ = 1.8–2 ms) and ultra-narrow (FWHM = 7 cm−1) magnetic dipole (MD) 5D0-7F1 emission centered at ∼591 nm. Three more crystalline sites are attributed to the oxygen vacancy charge-compensated defects: trigonal with C3v symmetry (C1 sites) and C2 and C3 sites with C2v or lower symmetry. Eu3+ in C1 sites exhibits predominant ED 5D0-7F2 emission centered at ∼610 and 632 nm with lifetime of 0.85–1 ms. The C1 sites are assigned to Eu3+-(oxygen vacancy)-associated cubic sites. The O2− to Ce4+ electronic charge-transfer band sensitizes preferentially the Eu3+ emission in O and, to a less extent, C1 sites but not the S sites. Overall, the results show that the oxygen vacancies are distributed around both Eu3+ and Ce4+ and the Eu3+-oxygen vacancy interaction mode as nearest-neighbour or next-nearest-neighbour depends on the calcination temperature." @default.
• W2044091909 created "2016-06-24" @default.
• W2044091909 creator A5000277950 @default.
• W2044091909 creator A5021924843 @default.
• W2044091909 creator A5054803305 @default.
• W2044091909 creator A5075165551 @default.
• W2044091909 date "2012-07-01" @default.
• W2044091909 modified "2023-10-03" @default.
• W2044091909 title "Temperature induced conversion from surface to “bulk” sites in Eu3+-impregnated CeO2 nanocrystals" @default.
• W2044091909 cites W1524157194 @default.
• W2044091909 cites W155455205 @default.
• W2044091909 cites W1679575702 @default.
• W2044091909 cites W1682777897 @default.
• W2044091909 cites W1964072178 @default.
• W2044091909 cites W1965977735 @default.
• W2044091909 cites W1967477025 @default.
• W2044091909 cites W1970188879 @default.
• W2044091909 cites W1971240238 @default.
• W2044091909 cites W1973655097 @default.
• W2044091909 cites W1986268167 @default.
• W2044091909 cites W2001129966 @default.
• W2044091909 cites W2004936118 @default.
• W2044091909 cites W2014794885 @default.
• W2044091909 cites W2019331261 @default.
• W2044091909 cites W2030273382 @default.
• W2044091909 cites W2036258730 @default.
• W2044091909 cites W2046522641 @default.
• W2044091909 cites W2048886244 @default.
• W2044091909 cites W2052879266 @default.
• W2044091909 cites W2057712094 @default.
• W2044091909 cites W2064701195 @default.
• W2044091909 cites W2065541488 @default.
• W2044091909 cites W2075263649 @default.
• W2044091909 cites W2082853497 @default.
• W2044091909 cites W2084463305 @default.
• W2044091909 cites W2087224418 @default.
• W2044091909 cites W2087559508 @default.
• W2044091909 cites W2114025916 @default.
• W2044091909 cites W2121550728 @default.
• W2044091909 cites W2124264385 @default.
• W2044091909 cites W2157522738 @default.
• W2044091909 cites W2160273148 @default.
• W2044091909 cites W2166424064 @default.
• W2044091909 cites W2167590372 @default.
• W2044091909 cites W2168463785 @default.
• W2044091909 cites W2618523531 @default.
• W2044091909 cites W82063562 @default.
• W2044091909 doi "https://doi.org/10.1063/1.4730609" @default.
• W2044091909 hasPublicationYear "2012" @default.
• W2044091909 type Work @default.
• W2044091909 sameAs 2044091909 @default.
• W2044091909 citedByCount "26" @default.
• W2044091909 countsByYear W20440919092013 @default.
• W2044091909 countsByYear W20440919092014 @default.
• W2044091909 countsByYear W20440919092016 @default.
• W2044091909 countsByYear W20440919092017 @default.
• W2044091909 countsByYear W20440919092018 @default.
• W2044091909 countsByYear W20440919092019 @default.
• W2044091909 countsByYear W20440919092021 @default.
• W2044091909 countsByYear W20440919092022 @default.
• W2044091909 crossrefType "journal-article" @default.
• W2044091909 hasAuthorship W2044091909A5000277950 @default.
• W2044091909 hasAuthorship W2044091909A5021924843 @default.
• W2044091909 hasAuthorship W2044091909A5054803305 @default.
• W2044091909 hasAuthorship W2044091909A5075165551 @default.
• W2044091909 hasConcept C113196181 @default.
• W2044091909 hasConcept C114221277 @default.
• W2044091909 hasConcept C121332964 @default.
• W2044091909 hasConcept C1276947 @default.
• W2044091909 hasConcept C145148216 @default.
• W2044091909 hasConcept C148869448 @default.
• W2044091909 hasConcept C161790260 @default.
• W2044091909 hasConcept C178790620 @default.
• W2044091909 hasConcept C185592680 @default.
• W2044091909 hasConcept C192562407 @default.
• W2044091909 hasConcept C32891209 @default.
• W2044091909 hasConcept C43617362 @default.
• W2044091909 hasConcept C4839761 @default.
• W2044091909 hasConcept C49040817 @default.
• W2044091909 hasConcept C55493867 @default.
• W2044091909 hasConcept C62520636 @default.
• W2044091909 hasConcept C7082614 @default.
• W2044091909 hasConcept C8010536 @default.
• W2044091909 hasConcept C85080765 @default.
• W2044091909 hasConcept C96141758 @default.
• W2044091909 hasConceptScore W2044091909C113196181 @default.
• W2044091909 hasConceptScore W2044091909C114221277 @default.
• W2044091909 hasConceptScore W2044091909C121332964 @default.
• W2044091909 hasConceptScore W2044091909C1276947 @default.
• W2044091909 hasConceptScore W2044091909C145148216 @default.
• W2044091909 hasConceptScore W2044091909C148869448 @default.
• W2044091909 hasConceptScore W2044091909C161790260 @default.
• W2044091909 hasConceptScore W2044091909C178790620 @default.
• W2044091909 hasConceptScore W2044091909C185592680 @default.
• W2044091909 hasConceptScore W2044091909C192562407 @default.
• W2044091909 hasConceptScore W2044091909C32891209 @default.
• W2044091909 hasConceptScore W2044091909C43617362 @default.
• W2044091909 hasConceptScore W2044091909C4839761 @default.
• W2044091909 hasConceptScore W2044091909C49040817 @default.
• W2044091909 hasConceptScore W2044091909C55493867 @default.

• next