Energy migration in YBO3:Yb3+,Tb3+ materials: Down- and upconversion luminescence studies
PBN-AR
Instytucja
Wydział Chemii (Uniwersytet im. Adama Mickiewicza w Poznaniu)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN
0925-8388
EISSN
Wydawca
ELSEVIER SCIENCE SA
DOI
URL
Rok publikacji
2016
Numer zeszytu
Strony od-do
951-961
Numer tomu
686
Identyfikator DOI
Liczba arkuszy
Autorzy
Pozostali autorzy
+ 2
Słowa kluczowe
en
Rare earth borates
YBO3
Yb3+/Tb3+
Upconversion
Downconversion
Luminescence
Charge transfer
Streszczenia
Język
en
Treść
Down- and upconversion luminescence phenomena from YBO3 materials doped by Yb3+ and Tb3+ ions were observed and investigated. Materials described in the article were synthesized by a sol-gel method. Two series of products were prepared: with changed molar concentrations of Yb3+ or Tb3+ ions in the range from 1 to 30%. This way of doping was chosen to analyse the influence of ions concentrations on luminescence and to find samples with the most intense emission. Structural and morphological properties of the obtained materials were analysed on the basis of X-ray diffraction, infrared spectroscopy and by collecting images of samples from transmission electron microscope. The products were pure and well crystallized, showing monoclinic structure with C2/c space group. Spectroscopic properties of the YBO3:Yb3+, Tb3+ materials were investigated by measurements of excitation spectra in the ultraviolet and near infrared range; emission spectra in the visible range; luminescence decays and dependencies of integral luminescence intensity on pumping laser energy. Based on careful studies of the obtained results, mechanisms responsible for the processes observed in these materials were proposed and explained. (C) 2016 Elsevier B.V. All rights reserved
Cechy publikacji
discipline:Chemia
discipline:Fizyka
discipline:Inżynieria materiałowa
discipline:Chemistry
discipline:Physics
discipline:Materials science
Original article
Original article presents the results of original research or experiment.
Oryginalny artykuł naukowy
Oryginalny artykuł naukowy przedstawia rezultaty oryginalnych badań naukowych lub eksperymentu.
Inne
System-identifier
PBN-R:764069
CrossrefMetadata from Crossref logo
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