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A biomimetic eye with a hemispherical perovskite nanowire array retina

机译：具有半球形钙钛矿纳米线阵列视网膜的仿生眼

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摘要

A biomimetic electrochemical eye is presented that has a hemispherical retina made from a high-density array of perovskite nanowires that are sensitive to light, mimicking the photoreceptors of a biological retina.Human eyes possess exceptional image-sensing characteristics such as an extremely wide field of view, high resolution and sensitivity with low aberration(1). Biomimetic eyes with such characteristics are highly desirable, especially in robotics and visual prostheses. However, the spherical shape and the retina of the biological eye pose an enormous fabrication challenge for biomimetic devices(2,3). Here we present an electrochemical eye with a hemispherical retina made of a high-density array of nanowires mimicking the photoreceptors on a human retina. The device design has a high degree of structural similarity to a human eye with the potential to achieve high imaging resolution when individual nanowires are electrically addressed. Additionally, we demonstrate the image-sensing function of our biomimetic device by reconstructing the optical patterns projected onto the device. This work may lead to biomimetic photosensing devices that could find use in a wide spectrum of technological applications.
机译：提出了一种仿真电化学眼，其具有由对光敏感的钙钛矿纳米线的高密度阵列制成的半球形视网膜，模仿生物视网膜的感光体。一只眼睛具有卓越的图像传感特性，例如极宽的领域视图，高分辨率和敏感度，低像差（1）。具有这种特性的仿生眼是非常需要的，特别是在机器人和视觉假体中。然而，用于生物眼的球形和视网膜为仿生件（2,3）构成了巨大的制造攻击。在这里，我们提出了一种电化学眼，其具有由纳米线的高密度阵列制成的半球形视网膜，其模仿人视网膜上的光感受器。当各个纳米线电解时，器件设计与人眼具有高度的结构相似性，其具有实现高成像分辨率的潜力。另外，我们通过重建投影到装置上的光学图案来证明我们的仿生装置的图像传感功能。这项工作可能导致可以在广泛的技术应用中找到使用的仿生光敏设备。

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  • 来源
    《Nature》 |2020年第7808期|278-282|共5页
  • 作者

    Gu Leilei; Poddar Swapnadeep; Lin Yuanjing; Long Zhenghao; Zhang Daquan; Zhang Qianpeng; Shu Lei; Qiu Xiao; Kam Matthew; Javey Ali; Fan Zhiyong;

  • 作者单位

    Hong Kong Univ Sci & Technol Dept Elect & Comp Engn Kowloon Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Elect & Comp Engn Kowloon Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Elect & Comp Engn Kowloon Hong Kong Peoples R China|Univ Calif Berkeley Elect Engn & Comp Sci Berkeley CA 94720 USA;

    Hong Kong Univ Sci & Technol Dept Elect & Comp Engn Kowloon Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Elect & Comp Engn Kowloon Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Elect & Comp Engn Kowloon Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Elect & Comp Engn Kowloon Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Elect & Comp Engn Kowloon Hong Kong Peoples R China;

    Hong Kong Univ Sci & Technol Dept Elect & Comp Engn Kowloon Hong Kong Peoples R China;

    Univ Calif Berkeley Elect Engn & Comp Sci Berkeley CA 94720 USA|Lawrence Berkeley Natl Lab Mat Sci Div Berkeley CA USA;

    Hong Kong Univ Sci & Technol Dept Elect & Comp Engn Kowloon Hong Kong Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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