Biomimetic nanocluster photoreceptors for adaptative circular polarization vision.
Wei WenGuocai LiuXiaofang WeiHaojie HuangChong WangDanlei ZhuJianzhe SunHuijuan YanXin HuangWenkang ShiXiaojuan DaiJichen DongLang JiangYunlong GuoHanlin WangYunqi LiuPublished in: Nature communications (2024)
Nanoclusters with atomically precise structures and discrete energy levels are considered as nanoscale semiconductors for artificial intelligence. However, nanocluster electronic engineering and optoelectronic behavior have remained obscure and unexplored. Hence, we create nanocluster photoreceptors inspired by mantis shrimp visual systems to satisfy the needs of compact but multi-task vision hardware and explore the photo-induced electronic transport. Wafer-scale arrayed photoreceptors are constructed by a nanocluster-conjugated molecule heterostructure. Nanoclusters perform as an in-sensor charge reservoir to tune the conductance levels of artificial photoreceptors by a light valve mechanism. A ligand-assisted charge transfer process takes place at nanocluster interface and it features an integration of spectral-dependent visual adaptation and circular polarization recognition. This approach is further employed for developing concisely structured, multi-task, and compact artificial visual systems and provides valuable guidelines for nanocluster neuromorphic devices.
Keyphrases
- artificial intelligence
- machine learning
- big data
- deep learning
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- aortic valve
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- photodynamic therapy
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- high glucose
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- endothelial cells
- label free
- quantum dots
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