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Pregled bibliografske jedinice broj: 920525

Crystallization and optical properties of Tm3+/Yb3+-co-doped KLaF4glass-ceramics


de Pablos-Martín, Araceli; Ristić, Davor; Durán, Alicia; Ferrari, Maurizio; Pascual, Maria Jesus
Crystallization and optical properties of Tm3+/Yb3+-co-doped KLaF4glass-ceramics // Crystengcomm, 19 (2017), 6; 967-974 doi:10.1039/c6ce01845a (međunarodna recenzija, članak, znanstveni)


Naslov
Crystallization and optical properties of Tm3+/Yb3+-co-doped KLaF4glass-ceramics

Autori
De Pablos-Martín, Araceli ; Ristić, Davor ; Durán, Alicia ; Ferrari, Maurizio ; Pascual, Maria Jesus

Izvornik
Crystengcomm (1466-8033) 19 (2017), 6; 967-974

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Rare earth luminescence, up-conversion

Sažetak
Nanocrystallization of KLaF4 in a 70 SiO2–7 Al2O3–16 K2O–7 LaF3 (mol%) glass co-doped with 0.2 mol% Tm2O3 and 0.5 mol% YbF3 was achieved by heat treatment above the glass transition temperature. KLaF4 nanocrystals of 6 nm precipitated and the crystal size was constant from 10 to 150 h of annealing time. The crystalline fraction achieved was very low, due to the drastic effect of the addition of dopants. The optical characterization of the obtained transparent glass and glass-ceramic showed a blue up-conversion emission due to an energy transfer mechanism involving two photons. However, there were no significant differences in the optical features between glass and glass-ceramic due to a low- crystallization degree. The role of dopant ions in the crystallization mechanism has been discussed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2014-09-7046 - Hibriridne silicijske nanstrukture za senzorik (Mile Ivanda, )

Ustanove
Institut "Ruđer Bošković", Zagreb

Autor s matičnim brojem:
Davor Ristić, (290651)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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