Surface Characterization and Photoluminescence Properties of Ce3+, Eu Co-Doped SrF2 Nanophosphor
2015 (English)In: Materials, ISSN 1996-1944, Vol. 8, no 5, 2361-2375 p.Article in journal (Refereed) Published
SrF2:Eu,Ce3+ nanophosphors were successfully synthesized by the hydrothermal method during down-shifting investigations for solar cell applications. The phosphors were characterized by X-ray diffraction (XRD), scanning Auger nanoprobe, time of flight-secondary ion mass spectrometry (TOF-SIMS), X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL) spectroscopy. XRD showed that the crystallite size calculated with Scherrers equation was in the nanometre scale. XPS confirmed the formation of the matrix and the presence of the dopants in the SrF2 host. The PL of the nanophosphor samples were studied using different excitation sources. The phenomenon of energy transfer from Ce3+ to Eu2+ has been demonstrated.
Place, publisher, year, edition, pages
MDPI , 2015. Vol. 8, no 5, 2361-2375 p.
SrF2; cerium; TOF-SIMS; XPS; shake-down; energy transfer
IdentifiersURN: urn:nbn:se:liu:diva-120292DOI: 10.3390/ma8052361ISI: 000356879100022OAI: oai:DiVA.org:liu-120292DiVA: diva2:843006
Funding Agencies|South African Research Chairs Initiative of the Department of Science and Technology; National Research Foundation of South Africa; National Research Foundation (NRF); University of the Free State2015-07-242015-07-242015-08-04