Nature CommunicationsAmbipolar ohmic contact to silicon for high-performance brain-inspired image sensorsHaoran SunPenghao ChenZiyu MingZheng ZhangYilin TaiYusen TianBinghui GeZengxing ZhangPeng Zhou2025-08-28Full textDOI https://doi.org/10.1038/s41467-025-63193-9