文献类型：期刊文献

英文题名：Luminescence properties of Bi3+-Activated double perovskite tungstate Ba2GdWO6 phosphors

作者：Chen, Li[1];Zhu, Fangyin[1];Yu, Junwen[1];Zhou, Wenqian[2];Lai, Nanjia[1];Li, Xiaohui[1];Chen, MeiLing[1];Zheng, Weicheng[1];Xiong, Zhengye[1];Guo, Jingyuan[1]

机构：[1]Guangdong Ocean Univ, Coll Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Coll Chem & Environm, Zhanjiang 524088, Peoples R China

年份：2026

卷号：52

期号：13

起止页码：22762

外文期刊名：CERAMICS INTERNATIONAL

收录：SCI-EXPANDED(收录号：WOS:001770079200001)、、EI(收录号：20261420441097)、WOS

基金：The authors extend their gratitude to Mr./Ms. Zhang from Scientific Compass (www.shiyanjia.com) for providing invaluable assistance with the PL analysis. This work was financially supported by the Doctoral Start-up Fund of Guangdong Ocean University (Grant No. 060302112102), the 2021 Key Project of Zhanjiang Science and Technology Plan "Research and Industrialization Promotion Application of LED Fish Collecting Lights for Marine Fishing" (Grant No. 2022A05022), and the Key Area Special Project of Guangdong Provincial Colleges and Universities-"Promotion of High-Quality LED Fish-Collecting Lights to Drive Energy Reduction and Income Increase in Marine Fishing Industry" (Grant No. 2024ZDZX4062).

语种：英文

外文关键词：Double perovskite; Tungstate; Photoluminescence; Thermoluminescence

外文摘要：Double perovskite-type fluorescent materials Ba2GdWO6:x%Bi3+ (x = 0.1 similar to 2.0) were successfully prepared via a high-temperature solid-state reaction method, which possesses dual functional characteristics of photoluminescence (PL) and thermoluminescence (TL). Systematic characterizations revealed that when the Bi3+ doping amount is 1%, the sample exhibits optimal PL performance under near-ultraviolet excitation. At an excitation wavelength of 382 nm, the typical blue emission peak of Bi3+ shows a quantum efficiency of 51.14%, with CIE chromaticity coordinates of (0.155, 0.049), a color purity as high as 91.62%, a correlated color temperature (CCT) of 1721 K, and an activation energy of 0.228 eV. All these indicators meet the application standards of LED phosphors for plant growth.Thermoluminescence analysis indicated that the material exhibits an obvious TL peak around 390 K, and the optimal TL performance is achieved when the Bi3+ doping concentration is 0.2%. Within the irradiation dose range of 0.266 similar to 2.1 Gy, the TL intensity shows a good linear relationship with the dose, demonstrating its applicability for low-dose radiation detection. In addition, the samples after X-ray irradiation not only possess high linear responsiveness but also exhibit excellent thermal stability and radiation damage resistance.In summary, the double perovskite tungstate Ba2GdWO6:x%Bi3+ achieves the synergistic optimization of light conversion and radiation response, and has important application value in the fields of plant lighting LEDs and radiation dose monitoring.