TY - JOUR
T1 - Novel inorganic xerogels doped with CaWO4:xDy
T2 - Synthesis, characterization and luminescence properties
AU - Grobelna, Beata
AU - Synak, Anna
AU - Głowaty, Dorota
AU - Bojarski, Piotr
AU - Szczepańska, Elżbieta
AU - Szczodrowski, Karol
AU - Gryczynski, Ignacy
AU - Karczewski, Jakub
N1 - Funding Information:
This research has been supported by the grant 2015/17/B/ST5/03143 financed by National Science Centre (P. Bojarski, A. Synak, B. Grobelna).
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017/9/15
Y1 - 2017/9/15
N2 - A series of novel phosphors based on silica xerogel doped with CaWO4:xDy(III) with various concentration of dysprosium ion was synthesized over a temperature of 800 °C. The thermal analysis, XRD measurement and spectroscopic investigations of these materials are presented in this study. Steady state luminescence, luminescence excitation spectra as well as emission spectra have been measured. Under the ultraviolet light, the prepared phosphors show characteristic blue and yellow bands which correspond to 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 transitions of Dy3+ ion, respectively. The concentration quenching effect occurs when the Dy3+ concentration is x = 0.1. We also present the possibility to increase the emission intensity of Dy(III) doped CaWO4 incorporated into silica xerogel as a result of its interaction with surface plasmons created by silver nanoparticles.
AB - A series of novel phosphors based on silica xerogel doped with CaWO4:xDy(III) with various concentration of dysprosium ion was synthesized over a temperature of 800 °C. The thermal analysis, XRD measurement and spectroscopic investigations of these materials are presented in this study. Steady state luminescence, luminescence excitation spectra as well as emission spectra have been measured. Under the ultraviolet light, the prepared phosphors show characteristic blue and yellow bands which correspond to 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 transitions of Dy3+ ion, respectively. The concentration quenching effect occurs when the Dy3+ concentration is x = 0.1. We also present the possibility to increase the emission intensity of Dy(III) doped CaWO4 incorporated into silica xerogel as a result of its interaction with surface plasmons created by silver nanoparticles.
KW - Calcium tungstate
KW - Dysprosium(III) ions
KW - Silver nanoparticles
KW - Sol-gel processes
KW - luminescence
UR - http://www.scopus.com/inward/record.url?scp=85026914837&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2017.07.005
DO - 10.1016/j.matchemphys.2017.07.005
M3 - Article
AN - SCOPUS:85026914837
SN - 0254-0584
VL - 199
SP - 166
EP - 172
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
ER -