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Healing defects with ammonia for a 23.21% efficient perovskite solar cell

Scientists in China demonstrated a process to “heal” defects in a perovskite film by using an ammonia treatment after the film is formed through a solvent process. Small solar cells made using these films achieved maximum efficiency of 23.21%, while a mini-module with a 14-square-centimeter active surface area reached 20.61%.

Keeping track of hydrogen for perovskite performance

Scientists in the United States discovered that hydrogen plays a leading role in the formation of defects in a perovskite film, which limit their performance as PV devices. The discovery, according to the researchers, offers further insight into observations already established by trial and error and could help to push the impressive efficiency achievements already made by perovskites even higher.

Panasonic claims 16.09% efficiency for lightweight perovskite solar module

The device has an area of 802cm² and thickness of 2mm. The manufacturer claims it improved module performance through an inkjet coating method and a reduction in weight by using thin glass substrates.

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