| Autor: |
Sun X; Chemistry and Chemical Engineering College, Qufu Normal University, Qufu 273165, Shandong, P. R. China., Gu Z; Chemistry and Chemical Engineering College, Qufu Normal University, Qufu 273165, Shandong, P. R. China., Gao Y; Chemistry and Chemical Engineering College, Qufu Normal University, Qufu 273165, Shandong, P. R. China., Liang M; Chemistry and Chemical Engineering College, Qufu Normal University, Qufu 273165, Shandong, P. R. China., Xia L; Chemistry and Chemical Engineering College, Qufu Normal University, Qufu 273165, Shandong, P. R. China., Qu F; Department of Pathology, Cancer Hospital of Zhejiang Province, Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou 310022, Zhejiang, P. R. China.; School of Molecular Medicine, Hangzhou Institute for Advanced Study, University of Chinese, Academy of Sciences, Hangzhou 310024, China. |
| Abstrakt: |
Luminescent thermometry affords remote measurement of temperature and shows huge potential in future technology beyond those possible with traditional methods. Strategies of temperature measurement aiming to increase thermal sensitivity in a wide temperature response window would represent a pivotal step forward, but most thermometers cannot do both of them. Herein, we propose a balancing strategy to achieve a trade-off between high Arrhenius activation energy ( E a ), which could stretch the temperature response windows, and fluorescence quantum yields (QYs) in a manner that will increase thermal sensitivity in a wide response window. In particular, a luminescent thermometer composed of AuNCs-MOF is prepared via a facile impregnation process to enhance QYs and E a , responsible for high relative sensitivity ( S r ) (15.6% K -1 ) and ultrawide temperature linearity range (from 83 to 343 K), respectively. Taking fluorescence intensity and lifetime as multiple parameters, the maximum S r can reach 22.4% K -1 by multiple linear regression. The maximum S r and temperature response range of the proposed thermometer outperform those of the most recent luminescent thermometers. The strategy of balancing S r and thermal response range by regulating E a and QYs enables the construction of ultra-accurate thermal sensors in the age of artificial intelligence. |
