Si QDs/ReS₂ Synaptic Photoreceptor

CMOS-compatible integration

Leveraging wavelength-dependent synaptic properties of ReS₂, this chip discriminates purple/red features with high fidelity and encodes dynamic visual information via light pulse sequences, achieving 99.4% accuracy in classification tasks.

Jian, Chai · Xu, Xinyi · Wang, Yue · Wang, Xiaochen · Hailiang, Wang · Zhang, Xinwei · Haoyu, Wang · Hao, Ning · Jiangming, Lin · Yongliang, Xie · Qihai, Jiang · Xiaolei, Ding · Duan, Shukai · Ni, Zhenyi · Hu, Huan · He, Xin · Xue, Fei · Zhou, Feichi · Li, Lingfei · Bodepudi, Srikrishna Chanakya · Yu, Bin · Xu, Yang

Advanced Science 2026

Specifications

Classification accuracy

{'zh': '99.4', 'en': '99.4'} %

CMOS process node

{'zh': '180', 'en': '180'} nm

Advantages

CMOS-compatible fabrication

Fabricated using a 180-nm CMOS process technology, enabling production in standard foundries without special equipment

High color discrimination

Based on the wavelength-dependent synaptic properties of ReS₂, this chip exhibits high-fidelity discrimination between purple and red features

Dynamic motion perception

Through light pulse sequence modulation, it achieves temporal encoding of dynamic visual information and can precisely identify leaf movement trajectories in eight directions

Applications

• Neuromorphic vision chips：Offers a CMOS-compatible neuromorphic vision chip solution that can be directly integrated into existing vision systems
• Machine vision：Used in machine vision for color feature discrimination and dynamic perception, improving recognition efficiency
• Dynamic scene recognition：Encodes dynamic information via light pulses to identify motion trajectories, suitable for dynamic scene recognition
• Bionic visual systems：Mimics insect visual processing for efficient color and motion perception, applicable to bionic visual systems