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Intrinsically stretchable organic photovoltaic cells (OPVs) have garnered significant attention as crucial devices for powering next‐generation wearable electronics. Despite the rapid power conversion efficiency gains in champion OPVs, their brittle stretchability has failed to meet the demands of the Internet of Things era, severely hindering further development and practical applications. In this regard, a new dual‐donor polymer blending strategy is demonstrated for constructing intrinsically stretchable OPVs by designing a novel high‐molecular–weight conjugated polymer PM6‐HD. This PM6 derivative featuring long alkyl chains can reach a sufficiently high molecular weight and thus exhibits a high fracture strain exceeding 90%, which is ≈12 times higher than the benchmark PM6. Synergistic optimization of mechanical properties and photovoltaic performance in polymer:small molecule and all‐polymer systems constructed from the physical blends of PM6 and PM6‐HD is achieved. Crucially, the resulting intrinsically stretchable OPV demonstrates excellent stretchability and stability, with a record PCE80% strain of 50.3% and the efficiency retention of above 80% even after 1000 cycles of cyclic stretching at high strains. This work contributes to the advancement of intrinsically stretchable OPV technology and opens up new possibilities for its integration into wearable electronic devices. [ABSTRACT FROM AUTHOR]

Adopting magnetron sputtering continuous automatic production line equipment for industrial production, polyester fabrics as the substrates were coated with nano-Ag/TiO2 composite films prepared by direct current sputtering method and direct current/radio frequency reactive sputtering method, respectively. The microstructure of Ag/TiO2 composite films deposited on the surface of the fabrics was dense and uniform. Structural colors were generated on the surface of the fabrics coated with the composite films and the coloring mechanism was consistent with the single-layer film interference principle. The color fastness, mechanical properties, comfortable properties were not significantly changed and had better antistatic property, anti-ultraviolet property, and antibacterial property compared with the original polyester fabrics. Therefore, the multi-functional and structurally colored fabrics can be prepared by magnetron sputtering technology, and can achieve industrial production, and have wide application prospects in apparel, home textile, and so on. [ABSTRACT FROM AUTHOR]