青色
材料科学
发光
微球
兴奋剂
压力测量
灵敏度(控制系统)
分析化学(期刊)
发射光谱
激发态
环境压力
光电子学
光学
谱线
原子物理学
化学
化学工程
机械工程
物理
色谱法
天文
电子工程
热力学
工程类
作者
Teng Zheng,Marcin Runowski,Junpeng Xue,Laihui Luo,U.R. Rodrı́guez-Mendoza,V. Lavı́n,I.R. Martı́n,P. Rodríguez‐Hernández,A. Múñoz,Peng Du
标识
DOI:10.1002/adfm.202214663
摘要
Abstract To address the unsatisfactory pressure sensitivity of luminescent manometers, Eu 2+ ‐activated supersensitive microspheres operating in the visible range are developed. A series of Eu 2+ ‐doped Sr 8 Si 4 O 12 C l8 materials are synthesized as microspheres, and their structural and spectroscopic properties are studied theoretically and experimentally. Excited at 350 nm, the samples emit a bright cyan luminescence at ambient conditions that, upon pressure, changes to green emission and finally to yellow light above 7 GPa. Most importantly, a huge red‐shift of the emission band from 497.3 to 568.8 nm is observed as the pressure increases, leading to an ultrahigh‐pressure sensitivity of 9.69 nm/GPa, which is the highest sensitivity ever reported. The designed microspheres with polychromatic emissions and high‐pressure sensitivity are suitable for visual optical pressure sensing, and the applied strategy provides some important guidelines for the development of new optical manometers, allowing pressure monitoring with unprecedented accuracy.
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