Japan's Kyushu University, Changchun Institute of Applied Chemistry, Kyoto University Institute of Chemistry, Chinese Academy of Sciences, French Sorbonne University and the French National Scientific Research Center-University of Strasbourg, through the selection of suitable organic materials, successfully The luminous efficiency of the perovskite LED is increased by about 4 times.

The perovskite film is simple to manufacture and can achieve high color purity. Therefore, perovskite LEDs are expected to be used in next-generation displays of low cost and high color purity. With this method, the luminous efficiency of the perovskite LED can be greatly improved, which will bring a huge impact to the display industry.