Ultra-thin solar cells for self-sufficient drones and sustainable aviation

According to the JKU researchers, whether on Earth or in space, autonomous energy is critical in keeping power systems running independently for extended periods of time, particularly in remote or unpredictable environments.

Conventional energy solutions - including fossil fuels, batteries and other alternative energy generation methods have their challenges, the researchers said. They are often too large, require cables or stationary charging, negatively impact on the environment, or their power density is too low.

As a solution, the research team developed ultra-thin and flexible perovskite solar cells.

The researchers said that their quasi-2D perovskite solar cells have a power output of up to 44 watts per gram and a comparatively high level of stability, making them an efficient and lightweight solution to facilitate self-sufficient energy generation over extended periods of time.

In a statement, PhD student at JKU and a lead author in the study, Christoph Putz, said: “Ultra-thin and lightweight solar cells not only have enormous potential to revolutionise the way energy is generated in the aerospace industry, there are also a wide range of applications that include wearable electronics, and the Internet of Things, that can also benefit from this new technology.