期刊
SENSORS AND ACTUATORS A-PHYSICAL
卷 309, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2020.111918
关键词
5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin; ZnO thin film; Composites; Optical waveguide; Ethanediamine gas
资金
- National Natural Science Foundation of China [21765021]
A highly sensitive and selective optical sensor device based on a porphyrin-coated ZnO thin film/K+ ion-exchanged glass composite optical waveguide (COWG) layer was developed. The surface of the ZnO film was coated with a thin film of 5,10,15,20-tetrakis-(4-methoxyphenyl) porphyrin by the spin-coating or immersion method. The optical properties of the films were probed by UV-vis and Fourier-transform infrared spectroscopies. The gas sensing performance was also examined in detail. The high sensitivity, room temperature operation, good selectivity, and reproducibility of the sensor render it a promising candidate for industrial use and in environmental monitoring. (C) 2020 Elsevier B.V. All rights reserved.
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