Shanghai Synchrotron Radiation Facility Deciphers Real-Time Morphology Evolution in All-Polymer Solar Cells During Solvent Vapor "Sauna"
Jul 25, 2025
All-polymer solar cells (APSCs) possess excellent material flexibility, solution processability, and thermal stability, offering great potential for lightweight and large-area printed applications in wearable and stretchable devices. A critical factor in achieving high performance is the optimization of active layer morphology, especially the regulation of crystallization and phase separation of the donor. However, the real-time morphological evolution during post-treatment processes such as solvent vapor annealing (SVA) has remained unclear.
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