Axially Chiral Semiconducting Polymers Enabling NIR Circularly Polarized Light‐Sensing Phototransistors and Neuromorphic Synapses

) of 0.30 and -0.34 under 808 nm CPL, enabling unambiguous discrimination of left- and right-handed light. Beyond static sensing, these devices emulate synaptic plasticity under CPL stimulation and, when coupled with an artificial neural network, deliver classification accuracies exceeding 95%. This work establishes a modular design paradigm for compact, NIR-active CPL sensors that integrate high charge transport, pronounced chiroptical response, and neuromorphic function, paving the way for photonic encryption, wearable optoelectronics, and bioinspired computing platforms.