Mimicking evasive behavior in wavelength‐dependent reconfigurable phototransistors with ultralow power consumption

Retinal-inspired synaptic phototransistors, which integrate light signal detection, preprocessing, and memory functions, show promising applications in artificial vision sensors. In recent years, it has been reported to construct heterojunction phototransistors realize positive photoconductance (PPC) negative (NPC) modulations, thereby achieving visible infrared wavelength discrimination various visual functions. However, relatively little attention paid wavelength-dependent switching reconfigurability between two states (PPC NPC), limiting further for complex simulations of biological Here, a mixed organic–inorganic phototransistor was constructed by integrating CsPbBr3 nanoplates (NPLs) with strong blue-light absorption poly(3-hexylthiophene-2,5-diyl) (P3HT) red-light absorption. Compared the three-dimensional (3D) structure nanocubes (NCs), two-dimensional (2D) NPLs exhibited more efficient charge transfer P3HT. Based on individual optical properties heterojunction, device wavelength-selective reconfigurable behavior PPC NPC. A low power consumption 0.053 fJ per event achieved, is comparable synapse. Finally, Drosophila's evasive food under red blue can be successfully demonstrated. This work demonstrates future potential visuomorphic computing.