Synthesis and up-conversion luminescence properties of Ho3+-Yb3+ co-doped glass ceramics containing Sr3Gd(PO4)3

• Published in: Optical materials 2021-11, Vol.121, p.111547, Article 111547
• Main Authors: Zhao, Tianli, Wang, Siying, Zou, Xiangyu, Zhang, Hongbo, Yan, Yimeng, Huo, Honghong, Wang, Qianwen, Su, Chunhui
• Format: Article
• Language: English
• Subjects: Glass ceramic; Ho3+-Yb3+ co-doping; Sr3Gd(PO4)3; Up-conversion luminescence
• ISSN: 0925-3467; 1873-1252
• DOI: 10.1016/j.optmat.2021.111547

Ho3+-Yb3+ co-doped transparent glass ceramics containing Sr3Gd(PO4)3 were successfully prepared by the melt crystallization method. The best condition of the thermal treatment was determined to be 780 °C/3 h by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscope (SEM). The transmittance of glass ceramic was approximately 81% in the visible region. From to the up-conversion emission spectra, the strong green emission (543 nm), weak red (654 nm) and blue emission (483 nm) due to the 5F4/5S2, 5F5, 5F3 → 5I8 transitions of Ho3+ can be observed. In addition, the optimum doping concentration of Ho2O3 and Yb2O3 was 0.3% and 0.8%, respectively. By comparing 0.3%Ho2O3-0.8%Yb2O3 co-doped with 0.3%Ho2O3 doped glass ceramic, the green and red up-conversion luminescence intensity were improved by about 33 times and 21 times, respectively. These results indicated that Ho3+-Yb3+ co-doped transparent glass ceramic containing Sr3Gd(PO4)3 have potential applications in the field of green up-conversion luminescence. The Ho3+/Yb3+ co-doped containing Sr3Gd(PO4)3 was successfully prepared. The introduction of Yb3+ can significantly enhance luminescence intensity and the Ho3+/Yb3+ co-doped glass ceramics containing Sr3Gd(PO4)3 has potential application value in up-conversion green light materials. [Display omitted] •The Ho3+/Yb3+ co-doped glass ceramic containing Sr3Gd(PO4)3 is synthesized.•The transmittance of glass ceramic can reach 81% in the visible region.•The critical distance of Ho3+-Yb3+ is 2.82 nm.•The introduction of Yb3+ can significantly enhance luminescence intensity.