Innovative Method Boosts Stability of Perovskite Solar Modules

• Revolutionary non-laser method for perovskite solar modules achieves 21.7% efficiency and 98% fill factor, surpassing traditional techniques. Major breakthrough in solar technology.

Researchers at HZB's HySPRINT Innovation Lab and institutions in China have developed a non-laser method for manufacturing perovskite solar modules using an adjustable wire mask. Traditional laser scribing can lead to decomposition of heat-sensitive perovskite materials and increased series resistance due to electrode corrosion. The new method prevents contact between perovskites and electrodes, resulting in a power conversion efficiency of 21.7% and a geometrical fill factor of 98%, higher than most laser-processed modules. The modules also showed good stability, retaining 90% efficiency after 500 hours.

All layers, including perovskites, were fabricated via vapor-phase deposition, with the team tuning precursor composition to achieve high efficiency. The use of naturally formed barrier layers contributed to the stability of the modules. This research represents a significant advancement in the development of perovskite solar technology, offering a promising alternative to traditional laser processing methods.

How does non-laser method improve efficiency and stability of perovskite solar modules?

• The non-laser method for manufacturing perovskite solar modules using an adjustable wire mask prevents contact between perovskites and electrodes, improving efficiency and stability.
• Traditional laser scribing can lead to decomposition of heat-sensitive perovskite materials and increased series resistance due to electrode corrosion, which is avoided with the new method.
• The power conversion efficiency of the modules using the non-laser method was measured at 21.7%, with a geometrical fill factor of 98%, higher than most laser-processed modules.
  
• The modules also showed good stability, retaining 90% efficiency after 500 hours of testing.
• All layers, including perovskites, were fabricated via vapor-phase deposition, with the team tuning precursor composition to achieve high efficiency.
• The use of naturally formed barrier layers contributed to the stability of the modules, further enhancing their performance.
• This research represents a significant advancement in the development of perovskite solar technology, offering a promising alternative to traditional laser processing methods.