Abstract
Enhanced red fluorescence emissions of Pr3+ were observed in heavy metal germanium tellurite (HGT) glasses containing silver nanoparticles (NPs).
Highlights
In the past decades, nanometer-sized particles of metals have attracted increasing attention due to several tempting properties such as optical nonlinearity, thermal characteristics, and magnetic properties,[1,2,3,4] which are different from their bulk states
Tellurite glasses show a compromise between the demand for a proper chemical durability and the desire for a low cut-off phonon energy, which is ideal for the device fabrication and rare-earth uorescence.[16,17,18,19,20,21,22,23,24]
Pr3+-doped heavy metal germanium tellurite glasses (HGT) were prepared from high purity Na2CO3, Bi2O3, PbO, GeO2, TeO2, Pr(NO3)3$6H2O, and AgCl powders according to the molar host composition 2Na2O–17Bi2O3–2PbO–19GeO2–60TeO2 with an additional xwt% Pr(NO3)[3] and ywt% AgCl, where x 1⁄4 0.22 and y 1⁄4 0 was labeled as HGT-Pr and x 1⁄4 0.22 and y 1⁄4 0.5 was marked
Summary
Nanometer-sized particles of metals have attracted increasing attention due to several tempting properties such as optical nonlinearity, thermal characteristics, and magnetic properties,[1,2,3,4] which are different from their bulk states. Considerable attention has been paid to the photometric characteristics of the noble metal (usually silver and gold) nanoparticles, which are embedded in a glass host accompanying with rare-earth (RE) ions, effectively boosting the uorescence of rare-earth ions.[5,6,7] Silver nanoparticles (NPs) function as an ideal sensitizer, which could enhance the emission efficiency of rare-earth ions due to the in uence of the localized surface plasmon resonance (LSPR).[8,9,10] The combination of RE ions and silver NPs provides a hopeful direction in the fabrication of optical devices for laser illumination.[11,12,13,14,15]. An efficient uorescence emission and megascopic sensibilization in the Pr3+ doped HGT glasses with Ag NPs under the laser excitation provide a promising orientation to develop the efficient optical devices and a tunable red uorescence is an important support for laser illumination in improving the color-rendering index
Sign-in/Register to view highlights & summary 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.
