Flexible perovskite solar modules with record-breaking performance developed as part of APOLO project
The CEA at INES has reported the design of flexible perovskite solar modules with a surface area of 11.6 cm2 and a power conversion efficiency of 18.9% (stabilized efficiency > 18.5%). This performance is said to be a world record for flexible perovskite modules over 10 cm2.

Perovskite-based modules before and after flexible encapsulation. Image credit: CEA
For some applications, the use of flexible substrates may be attractive for single-junction perovskite technology as it opens the way to high-speed, low-temperature printing processes. Thus, it becomes possible to use low cost substrates whereas inorganic flexible technologies, such as CIGS, require higher temperature processes and substrates that are more expensive. Many teams around the world are trying to meet the challenges of making larger area devices with sufficient stability for real-life applications. This is one of the tasks standing before partners of the European APOLO project, as part of which these results were obtained.