Effect of partial substitution of Ca for Sr on crystal structure and luminescence of Ce-doped Sr 4 Al 14 O 25

M. Misevicius*, K. Jonikavicius, Jens-Erik Jørgensen, V. Balevicius

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Abstract

Monophasic undoped and cerium-doped Sr 4 Al 14 O 25 samples with partial substitution of calcium for strontium were prepared using conventional solid-state synthesis. Structural studies revealed that substitution of strontium by calcium in Sr 4-x Ca x Al 14 O 25 up to x = 1.4 is possible without formation of additional phases and that the Sr2 site (of two possible) is more likely to be substituted by the smaller Ca ions. Photoluminescence measurements of Sr 4 Al 14 O 25 :Ce showed emission with double peak (360 and 380 nm) under 330 nm excitation wavelength. The effect of partial substitution of strontium by calcium on the luminescence of Sr 4-x Ca x Al 14 O 25 :Ce (emission, quantum yield, decay) were studied as well.

OriginalsprogEngelsk
TidsskriftJournal of Solid State Chemistry
Vol/bind274
NummerJune
Sider (fra-til)116-123
Antal sider8
ISSN0022-4596
DOI
StatusUdgivet - 2019

Fingeraftryk

Dyk ned i forskningsemnerne om 'Effect of partial substitution of Ca for Sr on crystal structure and luminescence of Ce-doped Sr 4 Al 14 O 25'. Sammen danner de et unikt fingeraftryk.

Citationsformater