Probing local environments in Eu3+ doped SrSnO3 nano-rods by luminescence and Sr K-edge EXAFS techniques

Autor:	Debnath Bhattacharyya, Rajesh K. Vatsa, Shambhu Nath Jha, J. Nuwad, Vasanthakumaran Sudarsan, Saibal Basu, Shailendra K. Kulshreshtha, Dinesh K. Patel
Rok vydání:	2013
Předmět:	Bond length Crystallography Tetragonal crystal system Materials science Extended X-ray absorption fine structure K-edge Rietveld refinement Doping General Physics and Astronomy Physical and Theoretical Chemistry Luminescence Ion
Zdroj:	Chemical Physics Letters. :82-86
ISSN:	0009-2614
DOI:	10.1016/j.cplett.2013.01.031
Popis:	Detailed luminescence studies on Eu 3+ doped SrSnO 3 nano-rods having body centered tetragonal structure, confirmed that up to 1.5 at% Eu 3+ ions occupy Sr 2+ site in the lattice and is having a less polarisable environment. Experimentally obtained Judd–Ofelt parameters ( Ω 2 and Ω 4 values) can be effectively used to monitor the extent of incorporation of Eu 3+ ions at Sr 2+ site. Based on Rietveld refinement of diffraction patterns and Sr K-edge EXAFS studies, it is inferred that average Sr–O and Sn–O bond lengths in SrO 12 and SnO 6 polyhedra increase with incorporation of relatively smaller Eu 3+ at Sr 2+ site in SrSnO 3 lattice.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f271a03d0a7ba00e6f1a67579a24a334 https://doi.org/10.1016/j.cplett.2013.01.031 Zobrazit plný text záznamu Full Text from ScienceDirect