Abstract
Bismuth molybdates of composition Bi2-xEuxMoO6 (x = 0.0–0.24) were prepared by a sol-gel process by taking the stoichiometric amounts of Bismuth oxide, Europium oxide and ammonium molybdate as preparatory materials. The precursor solutions were preheated and combusted before final sintering at 500, 600 & 700 °C/5 h each. The structure and photoluminescence characteristics were investigated using X-ray powder diffraction, UV–Vis absorption and fluorescence spectroscopy. The powder XRD patterns showed a low temperature γ(L)Bi2MoO6:Eu phase which was found to crystallize in a centro-symmetric Pca21 space group. A slight change of lattice parameters with Eu3+ dopant levels is observed from powder XRD patterns. The powders are mainly studied for their red light emission efficiency, under 465 nm & 540 nm excitation wavelengths. The excitation and emission studies as a function of dopant concentration, sintering temperature were studied and explained based on energy transfer of host lattice and intense 5D0 - 7F2 transitions of Eu3+ ions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
