Blue light emitting SrSn(OH)6 nano-rods doped with lanthanide ions (Eu3+, Tb3+ and Dy3+)

Autor:	B. Rajeswari, Bathula Vishwanadh, C.G.S. Pillai, R.M. Kadam, Vasanthakumaran Sudarsan, Rajesh K. Vatsa, J. Nuwad, Shailendra K. Kulshreshtha, Dinesh K. Patel
Rok vydání:	2013
Předmět:	Lanthanide Chemistry Mechanical Engineering Doping chemistry.chemical_element Condensed Matter Physics Photochemistry law.invention Ion Mechanics of Materials law X-ray crystallography General Materials Science Spontaneous emission Luminescence Electron paramagnetic resonance Europium
Zdroj:	Materials Research Bulletin. 48:566-573
ISSN:	0025-5408
DOI:	10.1016/j.materresbull.2012.11.047
Popis:	Blue light emitting SrSn(OH)6 nano-rods were prepared in aqueous medium at room temperature. Presence of lanthanide ions in reaction medium during synthesis of nano-rods, leads to significant changes in the morphology of the nano-rods. Based on luminescence studies emission in the blue region from SrSn(OH)6 nano-rods has been attributed to radiative recombination of self trapped excitons in the lattice. SrSn(OH)6 nano-rods were doped with lanthanide ions like Eu3+, Tb3+ and Dy3+ and their luminescence studies revealed that there exists energy transfer from host to lanthanide ions. From the luminescence studies on Eu3+ doped samples, it is confirmed that up to 1.5 at%, Eu3+ ions get incorporated at Sr2+ site in SrSn(OH)6 lattice and beyond which a separate Eu3+ containing phase is formed. Part of the europium ions also exists as Eu2+ species in the lattice as confirmed by electron paramagnetic resonance (EPR) studies.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ee208183e6957c8435b755c86904a5e6 https://doi.org/10.1016/j.materresbull.2012.11.047 Zobrazit plný text záznamu Full Text from ScienceDirect