期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 21, 期 44, 页码 24308-24315出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9cp04094c
关键词
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资金
- National Natural Science Foundation of China (NSFC) [81571720, 61505045]
A guideline for designing sensitive thermometry is proposed. It reveals that using two emission bands that possess the opposite change tendencies against temperature makes it easier to achieve a larger relative sensitivity. Based on the guidelines, a highly sensitive strategy for optical thermal detection that depends on the Tb3+-to-Eu3+ emission ratio is designed by exciting Eu3+/Tb3+'s unusual absorption lines. This can be easily driven by a commonly used and cheap 405 nm laser diode. Moreover, its maximum relative sensitivity reaches up to 2.02% K-1 at 610 K, one of the largest sensitivities reported so far.
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