Gate‐Programmable Broadband Photodetector for In‐Sensor Computing and Encryption

ABSTRACT Next‐generation intelligent perception systems require photodetectors that are functionally reconfigurable for in‐sensor processing. However, integrating broadband response, polarization sensitivity, and electrically reconfigurable photoresponse into a single compact device remains challenging. Here, we demonstrate a solution using a gate‐programmable photodetector based on a 2H‐MoTe 2 /ReSe 2 heterojunction. The device exhibits self‐powered broadband detection from 300 to 900 nm, with