| abstract |
The invention discloses an ammonia gas sensor based on perovskite quantum dots and a quantitative detection method for ammonia gas. The gas sensing element of the ammonia gas sensor includes a perovskite quantum dot film, and the perovskite quantum dot is a perovskite quantum dot with defects on the surface. The ammonia gas sensor in the invention has a simple structure and can realize dynamic monitoring of the ammonia gas content. The ammonia gas detection method in the present invention can realize the accurate measurement of low-concentration ammonia gas by using the change value of the fluorescence intensity, and the method can realize the quantitative detection of the ammonia gas concentration at room temperature without high working temperature, and has the advantages of The measurement method is simple, the component cost is low, the response recovery speed is fast, the detection selectivity is good, and the detection performance is good. |