Successfully developed self-repairing perovskite solar cell

Recently, the research team of Hu Linhua, a researcher at the Energy Materials and Device Manufacturing Research Department of the Institute of Solid State Physics, Hefei Institute of Material Science, Chinese Academy of Sciences, introduced polyvinylpyrrolidone into perovskite light-absorbing materials to realize the self-repair of perovskite solar cells.

In recent years, perovskite materials have become one of the promising optoelectronic materials in the field of optoelectronic devices due to their excellent optoelectronic properties

"When a perovskite solar cell is working in an air environment, moisture is one of the key factors leading to its decomposition

Polyvinylpyrrolidone is a long-chain polymer that is introduced into solar cells to wrap the perovskite light-absorbing material to form a hydrophobic barrier to prevent the invasion of water molecules

The growth of perovskite materials is extremely sensitive to environmental factors.

Hu Linhua said that in the next step, the research team will focus on self-repair for longer periods of time and self-repair under light conditions.