Nature CommunicationsUltrahigh current output performance in piezoelectric energy harvesters enabled by phase boundary–bandgap synergistic engineeringYan LinYanqi WuMupeng ZhengBo WuChunlin ZhaoChaofeng WuKe WangYudong Hou2025-12-10Full textDOI https://doi.org/10.1038/s41467-025-66404-5