Abstract
The luminescence from Er3+ and Nd3+ co-doped 57PbO-25Bi2O3-18Ga2O3 heavy metal oxide glass (HMOG) were observed and investigated. The mid-infrared emission originated from Er3+: 4I11/2 → 4I13/2 transition and centered at ~2.7 μm was enhanced due to the co-doping of Nd3+ ions and its concentration increase. While, visible upconversion luminescence and near infrared emission were quenched. The decrease of related lifetime indicated the energy transfer between Nd3+ and Er3+, which led to the change of luminescence. The population of Er3+: 4I11/2 level benefitted from larger absorption cross section of Nd3+ ions and the energy transfer Nd3+: 4F3/2 + Er3+: 4I15/2 → Er3+: 4I11/2 + Nd3+: 4I11/2 process. On the other hand, inversed energy transfer process from Er3+ to Nd3+ ions depleted the population of Er3+:4I13/2 levels. The energy transfer efficiency increased with Nd3+ ions concentration increase for the shortened distance between rare earth 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.
