North China University of Electric Power cooperated with scientific researchers such as the Federal Institute of Technology in Lausanne, Switzerland, successfully broke through the problem of lack of light and thermal stability of perovskite materials, and effectively enhanced the life of the solar cells of perovskite.Related results were published in the international academic journal "Science" on November 1.
The light and thermal stability of the perovskite ore material is insufficient.The migration of ionic is generated by itself, which is easy to accelerate its own aging, and long -term restrictions on the service life of the solar cells of perovskite.
Ding Yong, a professor at the Energy and Power Innovation Research Institute of North China University of Electric Power University, said that the preparation of perovskite batteries is to spread the perovskite solution evenly on the conductive glass background.Fillet film film was formed by high temperature annealing."When we are equipped with perovskite solution, we add N, N-di methyl chloride amine, and find that it responds to each other with ions in perovskite.Inhibiting the thermal decomposition of ostestomic and the migration of ion migration under light, it is this key to improve the stability of the perovskite film and extend the battery life.>
According to the team member Professor Ding Bin, under the environment of 85 degrees Celsius and 85%relative humidity environment, the photovoltaic component based on the research results is stillMaintain 87%initial efficiency.(Reporter Zhao Xu)
