Organic Transistor with Dual‐Heterojunctions Embedded Dielectric for Trimodal Self‐Adaptation Vision

ABSTRACT Biomimetic visual adaptation is crucial for machine vision to sustain robust perception over a wide luminance range. However, most existing adaptive optoelectronic devices rely on the joint regulation of external bias voltage and incident light intensity. Here, we present a trimodal organic active adaptation transistor (TM‐OAAT) by integrating two bulk heterojunctions within the gate dielectric. This architecture enables synergistic modulation of photocapacitance enhancement and interfacial charge‐trapping suppression. As a result, the device autonomously switches between scotopic, mesopic, and photopic vision modes without external gate bias modulation, covering a wide luminance range from moonlight to sunlight (10 −2 –10 6 cd m −2 ). Imaging experiments and simulations demonstrate that the device effectively restores image features across all three adaptation modes, achieving recognition accuracy exceeding 97%. By achieving trimodal self‐adaptation through illumination alone, this compact device provides a platform for low‐power, wide‐dynamic‐range bio‐inspired neuromorphic vision.