Symmetry-reconfigurable photodiode enables in-sensor direct photocurrent computation
Updated
Updated · Nature.com · Apr 30
Symmetry-reconfigurable photodiode enables in-sensor direct photocurrent computation
2 articles · Updated · Nature.com · Apr 30
The AgBiS2 device uses two high-work-function electrodes and voltage programming to reversibly switch from symmetric to asymmetric Schottky junctions, creating non-volatile bipolar weights.
Researchers said it is compatible with thin-film transistor read-out circuits and demonstrated infrared transmissive imaging, eye image recognition and actuator control for smart edge systems.
The work targets low-power applications such as microrobots and wearable electronics, aiming to advance scalable sensing-computing integration where viable device models and manufacturing methods have been limited.
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