文献类型：期刊文献

英文题名：A novel green phosphor Ba2Sc2((BO3)2B2O5):Ce3+for high color rendering index full-spectrum lighting and low-temperature sensors

作者：Liang, Pan Zhang, Hongshu Xue, Yingying Li, Saying Huang, Hongsheng Li, Xin Lin, Xuxiang Zhang, Yuxin Li, Lianqing Liu, Zhihong

第一作者：Liang, Pan

通信作者：Li, LQ[1];Liu, ZH[2]

机构：[1]Shaanxi Xueqian Normal Univ, Sch Chem & Chem Engn, Xian 710100, Peoples R China;[2]Shaanxi Normal Univ, Sch Chem & Chem Engn, Xian 710062, Peoples R China;[3]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China

第一机构：Shaanxi Xueqian Normal Univ, Sch Chem & Chem Engn, Xian 710100, Peoples R China

通信机构：corresponding author), Shaanxi Xueqian Normal Univ, Sch Chem & Chem Engn, Xian 710100, Peoples R China;corresponding author), Shaanxi Normal Univ, Sch Chem & Chem Engn, Xian 710062, Peoples R China.

年份：2025

卷号：43

期号：6

起止页码：1150-1160

外文期刊名：JOURNAL OF RARE EARTHS

收录：;EI(收录号：20251718276540);Scopus(收录号：2-s2.0-105002881218);WOS:【SCI-EXPANDED(收录号:WOS:001504587100006)】；

基金：We thank the innovation team of Shaanxi Xueqian Normal University for their financial support.

语种：英文

外文关键词：Green phosphor; Full spectrum lighting; Low-temperature sensor; High color rendering index; Rare earths

摘要：The utilization of phosphors that achieve full-spectrum lighting has emerged as a prevailing trend in the advancement of white light-emitting diode (WLED) lighting. In this study, we successfully prepared a novel green phosphor Ba2Sc2((BO3)2B2O5):Ce3+ (BSBO:Ce3+) that can be utilized for full-spectrum lighting and low-temperature sensors. BSBO:Ce3+ exhibits a broad-band excitation spectrum centered at 410 nm, and a broad-band emission spectrum centered at 525 nm. The internal and external quantum efficiencies of BSBO:Ce3+ are 99% and 49%, respectively. The thermal stability of BSBO:Ce3+ can be improved by substituting partial Sc atoms with smaller cations. The thermal quenching mechanism of BSBO:Ce3+ and the lattice occupancy of Ce ions in BSBO are discussed in detail. Furthermore, by combining the green phosphor BSBO:Ce3+, the commercial blue phosphor and the red phosphor on a 405 nm chip, a white light source was obtained with a high average color rendering index (CRI) of 96.6, a low correlated color temperature (CCT) of 3988 K, and a high luminous efficacy of 88.0 lm/W. The luminous efficacy of the WLED exhibits negligible degradation during the 1000 h light aging experiment. What's more, an emission peak at 468 nm appears when excited at 352 nm and 80 K, however, the relative intensity of the peaks at 468 and 525 nm gradually weakens with increasing temperature, indicating the potential of this material as a low-temperature sensor. (c) 2024 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.