Nd3+/Sm3+ codoped NaLa(WO4)2 glass ceramic: A novel optical heater. Issue 10 (15th May 2023)

• Record Type: Journal Article
• Authors: Zhao, Shilong; He, Jin; Wang, Tongwei; Huang, Lihui; Xu, Shiqing
• Is Part Of: Ceramics international. Volume 49:Issue 10(2023)
• Page Start: 15771
• Page End: 15776
• Publication Date: 2023-05-15
• Subjects: Photothermal conversion -- Glass ceramics -- Nd3+/Sm3+ -- Energy transfer; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2023.01.171
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Transparent Nd 3+ /Sm 3+ codoped tungstate silicate glass ceramics were prepared and used for the photothermal conversion process. XRD patterns, TEM image and the enhanced Raman signals confirm the appearance of the tetragonal scheelite NaLa(WO4 )2 nanocrystals in the vitreous phase. In comparison to the precursor glass, the enhancement of photoluminescence of Nd 3+ ions in the glass ceramics attributes to the enrichment of Nd 3+ ion in the precipitated low phonon-energy tetragonal scheelite NaLa(WO4 )2 nanocrystals. The rapid reduction of photoluminescence of Nd 3+ ions in the Nd 3+ /Sm 3+ codoped glass ceramics demonstrates that a strong energy transfer from Nd 3+ to Sm 3+ takes place, which provides more non-radiative relaxation channels and is beneficial for the improving the photothermal conversion efficiency. Under the irradiation of 808 nm laser diode, a significant temperature rise is observed in the Nd 3+ /Sm 3+ codoped glass ceramics and may be used as a good optical heater.