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Ultraflexible and Ultrasensitive Near-Infrared Organic Phototransistors for Hemispherical Biomimetic Eyes
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2022-09-20 , DOI: 10.1002/adfm.202206765 Hongyan Yu 1 , Xiaoli Zhao 1 , Mingyue Tan 1 , Bin Wang 1 , Mingxin Zhang 1 , Xue Wang 1 , Sanlei Guo 1 , Yanhong Tong 1 , Qingxin Tang 1 , Yichun Liu 1
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2022-09-20 , DOI: 10.1002/adfm.202206765 Hongyan Yu 1 , Xiaoli Zhao 1 , Mingyue Tan 1 , Bin Wang 1 , Mingxin Zhang 1 , Xue Wang 1 , Sanlei Guo 1 , Yanhong Tong 1 , Qingxin Tang 1 , Yichun Liu 1
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The diverse biological eyes vision systems found in nature can provide attractive design inspiration for near-infrared (NIR) imaging devices. Outstanding features of the retina are its concave hemisphere geometry and high-sensitivity image acquisition, which simplify the optical complexity of the eye and improve the imaging quality of visual perception. However, developing high-performance NIR biomimetic imaging systems with these characteristics is extremely challenging due to the limitations of their hemisphere-like structures, constituent materials, and conventional imaging modules. Here, a hemispherical biomimetic eyes imaging system based on ultraflexible all-polymer heterojunction NIR phototransistors is presented. The device features a self-supporting ultrathin (≈659 nm) NIR imaging structure that can maintain stable photoelectric performance while adhering to the human body or arbitrary-shaped objects and have extraordinary photosensitivity (≈106) under dim light conditions (0.038 mW cm−2, 808 nm). Based on the versatile NIR device array, hemispherical ultrasensitive NIR biomimetic eyes are successfully achieved and higher-resolution imaging is realized. Results demonstrated in this work provide a new strategy for constructing ultraflexible and ultrasensitive NIR photodetectors, showing remarkable application potential in next-generation visual prosthetics and intelligent bioimaging systems.
中文翻译：
用于半球形仿生眼的超柔性和超灵敏近红外有机光电晶体管
自然界中发现的各种生物眼睛视觉系统可以为近红外 (NIR) 成像设备提供有吸引力的设计灵感。视网膜的突出特点是其凹半球几何结构和高灵敏度图像采集，简化了眼睛的光学复杂性，提高了视觉感知的成像质量。然而，由于半球状结构、组成材料和传统成像模块的局限性，开发具有这些特性的高性能近红外仿生成像系统极具挑战性。在这里，提出了一种基于超柔性全聚合物异质结 NIR 光电晶体管的半球形仿生眼睛成像系统。6 ) 在暗光条件下 (0.038 mW cm -2 , 808 nm)。基于通用的近红外器件阵列，成功实现了半球形超灵敏近红外仿生眼，实现了更高分辨率的成像。这项工作中展示的结果为构建超柔性和超灵敏 NIR 光电探测器提供了一种新策略，在下一代视觉修复和智能生物成像系统中显示出巨大的应用潜力。
更新日期：2022-09-20
中文翻译：
用于半球形仿生眼的超柔性和超灵敏近红外有机光电晶体管
自然界中发现的各种生物眼睛视觉系统可以为近红外 (NIR) 成像设备提供有吸引力的设计灵感。视网膜的突出特点是其凹半球几何结构和高灵敏度图像采集，简化了眼睛的光学复杂性，提高了视觉感知的成像质量。然而，由于半球状结构、组成材料和传统成像模块的局限性，开发具有这些特性的高性能近红外仿生成像系统极具挑战性。在这里，提出了一种基于超柔性全聚合物异质结 NIR 光电晶体管的半球形仿生眼睛成像系统。6 ) 在暗光条件下 (0.038 mW cm -2 , 808 nm)。基于通用的近红外器件阵列，成功实现了半球形超灵敏近红外仿生眼，实现了更高分辨率的成像。这项工作中展示的结果为构建超柔性和超灵敏 NIR 光电探测器提供了一种新策略，在下一代视觉修复和智能生物成像系统中显示出巨大的应用潜力。
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