A new perovskite material based on ethylene-diamine-dichloride and lead iodide as organic and inorganic precursors respectively was synthesized. Thin films of perovskite material were characterized using SEM, UV-Visible spectroscopy, XRD, and FT-IR. Sensing properties of inorganic organic perovskite thin films were studied and it was found to be selective for ammonia detection. Ammonia being one of the most hazardous and volatile chemical becomes necessary to detect. Color change of perovskite film from yellow to orange was observed in the presence of ammonia vapors. Electrical measurements showed decrease in resistance in the presence of ammonia vapors. Low concentration upto 50 ppm can be easily detected in approximately 40 s. The present method for detecting ammonia is unique, simple, selective, low cost and can be easily implemented for the field studies.

分别合成了一种以乙二胺二氯化物和碘化铅为有机和无机前驱体的钙钛矿材料。钙钛矿材料的薄膜使用SEM，紫外可见光谱，XRD和FT-IR进行表征。研究了无机有机钙钛矿薄膜的传感特性，发现它对氨气的检测具有选择性。氨是最危险和挥发性最大的化学物质之一，因此有必要进行检测。在存在氨蒸气的情况下，观察到钙钛矿膜的颜色从黄色变为橙色。电学测量显示在存在氨蒸气的情况下电阻降低。大约40 s内即可轻松检测到高达50 ppm的低浓度。本发明的检测氨的方法是独特，简单，选择性，