Abstract
A group of samples from the CdO–V2O5 binary system, particularly with high V2O5 content, doped with Er3+ were prepared. The set of samples was fabricated using the conventional melt-quenching method. Depending on the proportion of the used reactants, the existence of V2O5 and of CdV2O6 was identified from X-ray diffraction measurements and Raman spectroscopy. Depending on the relative concentrations of CdO and V2O5, different types of morphologies for each sample were found in a scanning electron microscope. Their chemical composition was measured from energy dispersive spectroscopy in the same instrument. An effective Er-doping of the order of 1.0±0.35at% was found for each sample. From optical absorption data, the composition dependent optical band gap was determined with values between 1.94 and 2.29eV. Finally, photoluminescence experiments showed, in the samples with the highest V2O5 content, wide bands associated to oxygen vacancies. For the rest of the samples emissions from electronic transitions of Er3+ ions were detected.
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.
