@article{Liu2025, 
author = {Conglin Liu and Xiaoting Huang and Jing Zhu and Yubin Wang and Lei Lei and Asif Ali Haider and Guanhao Zhou and Ran Li and Xiaoyang Zhao and Wei Qian and Dandan Gao and Yue Qin and Zhi Xie},
title = {Exploiting structural benefit of double phosphate for extremely efficient near-ultraviolet light towards multiple functionality},
year = {2025},
journal = {Journal of Advanced Ceramics},
volume = {14},
number = {8},
pages = {9221131},
keywords = {X-ray imaging, Stokes shift, NaSrY(PO4)2 (NSYP), near-ultraviolet (n-UV) emission, temperature detection},
url = {https://www.sciopen.com/article/10.26599/JAC.2025.9221131},
doi = {10.26599/JAC.2025.9221131},
abstract = {Despite advances in the multicolor luminescence of Ce-activated materials, achieving efficient and stable near-ultraviolet (n-UV) emission remains a critical challenge. On the basis of structural rigidity engineering, a small Stokes shift (ΔS = 0.53 eV) of Ce in microwave-hydrothermally synthesized NaSrY(PO4)2 (NSYP) nanophosphors is achieved, addressing this shortage. The internal quantum efficiency reaches as high as 98.5% (λex = 325 nm) along with superior thermostability (78% intensity retention at 423 K) and exceptional solvent resistance (82% after 10 days of immersion). The optimal nanomaterial is used as a scintillation screen for X-ray imaging, achieving a high spatial resolution of 11.0 lp/mm and clear imaging of measured objects, rivaling a commercial scintillator (CsI:Tl). A high relative sensitivity (SR-max = 0.94 (%)·K−1) is achieved for excitation intensity ratio (EIR) technology-based optical thermometry. This work presents fascinating applications in X-ray imaging and optical thermometry for n-UV-emitting nanophosphors. These findings also highlight the critical role of host structure in designing high-quality Ce-activated optical materials.}
}