化学
荧光粉
色温
显色指数
发光
发光二极管
荧光
二极管
热稳定性
分析化学(期刊)
白光
光学
材料科学
光电子学
物理
生物化学
色谱法
酶
作者
Conglin Liu,Youkui Zheng,Qin Yue,Lulu Liang,Shuqing Yang,Hong Li,Hongming Jiang,Xiaoyang Zhao,Shanlin Liu,Hongzhi Zhang,Jing Zhu
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2024-03-26
卷期号:63 (14): 6483-6492
被引量:49
标识
DOI:10.1021/acs.inorgchem.4c00358
摘要
Constructing a phosphor with multifunctional applications is an imperative challenge. Especially, highly thermostable luminescence of phosphor is indispensable for stable white-light-emitting diodes (LEDs). Nevertheless, good thermal quenching resistance behavior is unfavorable for a fluorescence intensity ratio (FIR)-based optical temperature sensor. Herein, a highly thermostable Ba3(ZnB5O10)PO4 (BZBP)-based phosphor is successfully achieved via replacing Ba2+ with Dy3+, demonstrating simultaneously promising lighting and thermometry utilizations. Under the excitation of 350 nm, the title phosphor only loses 12% of the initial intensity when the temperature is up to 473 K, ensuring sufficient luminescence thermostability for white-LED lighting. The white-LED device fabricated using the title phosphor emits high-quality white light with a high color rendering index (Ra = 93) and low correlated color temperature (CCT = 3996 K). Meanwhile, the yellow and blue emission intensities demonstrate a downtrend difference with rising temperature. Temperature sensing properties are assessed through FIR technology. The maximal relative sensitivity reaches as high as 0.0379 K-1 at 298 K. These results reveal that the title phosphor has a great potential for indoor lighting and thermometry applications.
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