Abstract
In the present work, a series of Sm3+ doped transparent strontium aluminate glasses with the composition Al2O3-(3-x)SrO: xSm3+ (x = 0, 0.01, 0.03, 0.06, 0.1, 0.2) were fabricated by a containerless process using an aerodynamic levitation furnace. The structural characteristics, density, Vicker’s hardness, and thermal and spectroscopic behaviors of these glasses were investigated. All the glasses exhibit excellent thermal stabilities (Tg ≥ 792 °C) and the glass-forming ability is enhanced with the increasing content of Sm3+. The emission spectra recorded under an excitation of 404 nm show four emission transitions as a result of 4G5/2 translated to the lower states of 6H5/2, 6H7/2, 6H9/2, and 6H11/2, and a bright orange-reddish luminescence can be observed in Al2O3-(3-x)SrO: xSm3+ glasses. The high thermal stability, good glass-forming ability and excellent hardness provide new options for the development of visible orange-reddish lasers and smart photoluminescent glass coating materials.
Highlights
Oxide glasses containing luminescent rare-earth (RE) ions have been widely investigated due to their excellent photoluminescence properties, outstanding optical properties and high thermal and chemical stabilities
We focused on Sm3+ doped Al2O3-SrO glasses to explore the effect of samarium concentration on the structural, mechanical and thermal stability, as well as the absorption and emission spectra of these glasses
Experimental Procedure Sm3+ doped Al2O3-(3-x)SrO: xSm3+(x = 0, 0.01, 0.03, 0.06, 0.1, 0.2) luminescent glasses were successfully prepared by a containerless process using an aerodynamic levitation furnace (ALF, Shanghai Institute of Ceramics, Shanghai, China)
Summary
Oxide glasses containing luminescent rare-earth (RE) ions have been widely investigated due to their excellent photoluminescence properties, outstanding optical properties and high thermal and chemical stabilities. Aluminate-based materials have been widely concerned for their high stability, quantum efficiency, high transparency in the UV-Vis range and decent mechanical property [4,5,7,8,9]. Studies have shown that the presence of alkaline earth is of great benefit to the chemical resistance of the glass substrate [10], and alkaline earth aluminate-based luminescent materials have been extensively applied as host materials. In-depth study of RE-doped Al2O3-SrO glassy systems would promote the understanding of its multifunctional properties, such as the thermal, mechanical and optical properties
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.
