• • Photodetector performance: responsivity of 4.7 × 10^4 A/W, specific detectivity of 2.2 × 10^17 Jones, and photosensitivity of 1.5 × 10^8. These metrics exceed most organic photodetectors, enabling high-sensitivity image sensing for neuromorphic vision systems.
• • Energy consumption per synaptic spike: 0.021 fJ for a single spike and 0.018 fJ average under two consecutive stimuli. These values are significantly lower than biological synaptic events (≈10 fJ) and most organic artificial synapses, critical for low-power neuromorphic computing.
• • Flexible 7 × 7 synaptic array: under mechanical deformation, the array captured and retained a high-contrast 'T'-shaped image immediately after light exposure, with gradual decay emulating biological forgetting. This demonstrates viability for deformable, low-voltage neuromorphic systems.
• • Dual-mode operation: gate-voltage-controlled switching between photo-switching (negative bias) and photonic synaptic (positive bias) modes within a single device. This enables logic gate functions (AND, OR) and synaptic plasticity (EPSC, PPF, STP-to-LTP) without additional components, reducing fabrication complexity.