Research results of North China Electric Power University and other universities: North China Electric Power University has cooperated with researchers from the Swiss Federal Institute of Technology in Lausanne and other universities to successfully break through the problem of insufficient photothermal stability of perovskite materials and effectively improve the life of perovskite solar cells, which was published in the international academic journal Science on November 1, 2024. The researchers added n,n-dimethylchloroenimide, a dopant to the perovskite solution, which reacted with the ions in the perovskite, and the triazine ions generated in situ could inhibit the thermal decomposition of the perovskite and the ion migration under light.
Novel Device Structure at City University of Hong Kong: City University of Hong Kong has successfully developed a novel device structure that can greatly improve the stability and efficiency of perovskite solar cells, simplify the production process, and reduce costs, according to the study published in Science. The structure combines the original hole selection layer and perovskite layer of the battery, and uses the inorganic tin dioxide with excellent heat resistance as the electron transport layer, and the energy conversion efficiency of the device has exceeded 25% after improving the oxygen vacancy defect of the tin dioxide layer, and the efficiency can still exceed 95% after 2000 hours of continuous operation under strict test conditions.
