摘要
The detection of hydrogen sulfide(H_(2)S)is essential because of its toxicity and abundance in the environment.Hence,there is an urgent requisite to develop a highly sensitive and economical H_(2)S detection system.Herein,a zinc phthalocyanine(ZnPc)thin film-based K+-exchanged optical waveguide(OWG)gas sensor was developed for H_(2)S detection by using spin coating.The sensor showed excellent H_(2)S sensing performance at room temperature with a wide linear range(0.1 ppm 500 ppm),reproducibility,stability,and a low detection limit of 0.1ppm.The developed sensor showed a significant prospect in the development of cost-effective and highly sensitive H_(2)S gas sensors.
基金
This work was supported by the National Natural Science Foundation of China(Grant No.21765021).
