Optoelectronic polymer memristors with dynamic control for power-efficient in-sensor edge computing

Journal article

As the demand for edge platforms in artificial intelligence increases, including mobile devices and security applications, the surge in data influx into edge devices often triggers interference and suboptimal decision-making. There is a pressing need for solutions emphasizing low power consumption and cost-effectiveness. In-sensor computing systems employing memristors face challenges in optimizing energy efficiency and streamlining manufacturing due to the necessity for multiple physical processing components. Here, we introduce low-power organic optoelectronic memristors with synergistic optical and mV-level electrical tunable operation for a dynamic "control-on-demand" architecture. Integrating signal sensing, featuring, and processing within the same memristors enables the realization of each in-sensor analogue reservoir computing module, and minimizes circuit integration complexity. The system achieves 97.15% fingerprint recognition accuracy while maintaining a minimal reservoir size and ultra-low energy consumption. Furthermore, we leverage wafer-scale solution techniques and flexible substrates for optimal memristor fabrication. By centralizing core functionalities on the same in-sensor platform, we propose a resilient and adaptable framework for energy-efficient and economical edge computing.

Authors: Zhou, J; Li, W; Chen, Y; Qian, H; Lin, Y-H

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: Springer Nature [academic journals on nature.com]
• Journal: Light: Science & Applications
• Volume: 14
• Issue: 1
• Pages: 309
• Publication date: 2025-09-08
• Acceptance date: 2025-07-24
• DOI: 10.1038/s41377-025-01986-9
• EISSN: 2047-7538
• ISSN: 2047-7538
• Language: English
• Keywords: Leverage (statistics); Memristor