Method for improving amplified spontaneous emission performance of methylamine lead iodide perovskite thin film and product thereof

The invention relates to a method for improving amplified spontaneous emission performance of a methylamine lead iodine perovskite film and a product thereof, and belongs to the technical field of photonics. The method mainly comprises the following steps: adding butylated hydroxytoluene (BHT) into a precursor solution in the process of preparing the methylamine lead iodide perovskite thin film to assist 95% RH humidity treatment, thereby reducing the threshold value and loss in the process of preparing the methylamine lead iodide perovskite thin film, and improving the gain; the purpose of improving the amplified spontaneous emission performance of the methylamine lead iodine (MAPbI3) perovskite thin film by using a simple method is achieved. 本发明涉及一种提高甲胺铅碘钙钛矿薄膜放大自发发射性能的方法及其产品，属于光子学技术领域。本发明主要是在制备甲胺铅碘钙钛矿薄膜的过程中向前驱液中添加二丁基羟基甲(BHT)辅助95％RH湿度处理，从而在制备甲胺铅碘钙钛矿薄膜过程中降低阈值、损耗，提高增益，达到用一种简单的方法提高甲胺铅碘(MAPbI3)钙钛矿薄膜放大自发发射性能的目的。