Ding, Q., Li, Z., Hou, Y., Li, C., Sun, X., Zhu, Z., Zhou, W., Wu, Z., Yan, X., Liu, R., Guo, H., Wang, Z. (2026). 3D‐Printing Assisted Bidirectional π ‐Structured Thermoelectric Generators: Reverse‐Designed Flexible Architectures for Curved Heat Sources. Advanced Materials. https://doi.org/10.1002/adma.202511872