In summary, this work represents a significant step forward in MEG research by integrating asymmetric rectification, interfacial polarization, and wireless energy interaction into a single soft-material framework. The hybrid PCID films effectively overcome the low output limitations of conventional MEGs and introduce a new class of multifunctional energy materials. Future research should focus on expanding the EMW response range (e.g., GHz), optimizing semiconductive hydrogel formulations, and scaling device arrays for use in smart buildings, human–machine interfaces, and distributed power networks.