journal article·2025-02-11

Molecular Cocrystal Strategy for Retinamorphic Vision with UV–Vis–NIR Perception and Fast Recognition

Xue-Mei Dong, Chen Chen, Yin-Xiang Li, Hong-Chao Sun, Bin Liu, Zi-Fan Li, Kai-Li Wang, Zi-Xi He, Meng-Na Yu, Wei Huang, Ju-Qing Liu

ACS Nano· Volume 19· Issue 5
Publisher page

Abstract

Neuromorphic vision sensors capable of multispectral perception and efficient recognition are highly desirable for bioretina emulation, but their realization is challenging. Here, we present a cocrystal strategy for preparing an organic nanowire retinamorphic vision sensor with UV–vis–NIR perception and fast recognition. By leveraging molecular-scale donor–acceptor interpenetration and charge-transfer interfaces, the cocrystal nanowire device exhibits ultrawide photoperception ranging from 350 to 1050 nm, fast photoresponse of 150 ms, high specific detectivity of 8.2 × 10 12 Jones, and responsivity of 15 A W –1, as well as retina-like photosynaptic plasticity behaviors. Utilizing the sensor nerve and convolutional neural network, the architecture achieves 90% accuracy in recognizing colorful images. The cocrystal design offers an effective method for constructing nanowire photosynases with high performance in artificial visual systems.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Photoreceptor and optogenetics research · Advanced Memory and Neural Computing · Luminescence and Fluorescent Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Flexible Electronics (LoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China

Centre for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Flexible Electronics (LoFE) & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China

Funding

National Natural Science Foundation of China · Jiangsu Specially Appointed Professor program

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