Korean materials science specialists have developed a thin-film gas sensor based on perovskite using antimony. This sensor is capable of detecting ammonia even at very low concentrations, reaching a level of just 1 ppm.
At a gas concentration of 100 ppm, this sensor demonstrates a response expressed as a 235 percent increase in current strength. This development represents an effective replacement for lead perovskites, whose main problem is toxicity, as well as more traditional sensors based on bismuth.
The research results were presented in the scientific journal Small Structures.
