| 标题 |
 Superior five-mode luminescent thermometry based on thermochromic Mn ions-activated Gd3Al3Ga2O12 phosphors 基于热致变色锰离子激活Gd3Al3Ga2O12荧光粉的卓越五模发光测温
相关领域
热致变色
荧光粉
材料科学
发光
离子
光电子学
化学
有机化学
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| 网址 | |
| DOI | |
| 其它 | Optical thermometers are swiftly becoming favored owing to their heightened sensitivity and adaptability. However, designing thermometers with higher sensitivity and multiple detection modes remains a crucial agenda. Herein, five-mode optical thermometric technologies were triumphantly designed in thermochromic Mn ions-activated Gd3Al3Ga2O12 powders. Upon 279 nm light excitation, three wideband emissions peaked at 630, 697 and 790 nm are detected, attesting the coexistence of Mn2+ and Mn4+ in Gd3Al3Ga2O12. With climbing temperature from 303 to 453 K, the luminescence color shifts from red to orange, which is effortlessly discernible for the naked eyes. Leveraging the distinct temperature responses of different emission centers, high-performance optical monitoring techniques are devised on the fluorescence intensity ratio (FIR (I630 nm/I697 nm) and FIR (I630 nm/I790 nm)) and |
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