In the thriving photovoltaic industry, all-polymer solar cells (all-PSCs) are gaining attention for their mechanical flexibility, lightweight design, and ability to be printed at low temperatures. However, the complex molecular structures of the polymer materials in all-PSCs pose challenges in controlling the microstructures of the active layers, limiting their performance metrics.
The lack of a standardized evaluation framework that links stress-strain characteristics with mechanical stability in flexible devices further complicates progress in improving device performance and stability.
