A self-powered flexible vision electronic-skin for image recognition based on a pixel-addressable matrix of piezophototronic ZnO nanowire arrays

Zhang, Linlin; Fu, Yongming; Xing, Lili; Liu, Baodan; Zhang, Yan; Xue, Xinyu

doi:10.1039/c7tc01842h

Cited by 33 publications

(19 citation statements)

References 56 publications

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“…Significantly, the power units also need to be integrated into the multifunctional e‐skins to form self‐powered nanosystems, which are especially favorable for next‐generation multifunctional e‐skins. Recently, a novel self‐powered e‐skin for image recognition was realized from a pixel‐addressable matrix of piezo‐phototronic ZnO nanowire arrays . The skin can actively output piezoelectric voltage under an applied deformation.…”

Section: Integrated Self‐powered Nanosystemsmentioning

confidence: 99%

Self‐Powered Nanoscale Photodetectors

Tian

Wang

Chen

et al. 2017

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Novel self‐powered nanoscale photodetectors that can work without an external power source, which have great application potential in next‐generation nanodevices that operate wirelessly and independently, are being widely studied. This review aims to give a comprehensive summary of the state‐of‐the‐art research results on self‐powered nanoscale photodetectors. An introduction of recent progress on Schottky junction photodetectors is provided. Two types of Schottky junctions are discussed in detail: metal–semiconductor and semiconductor–graphene junctions. Next, recent developments of p–n junction photodetectors are highlighted, including homojunction and heterojunction photodetectors. Then, piezo‐phototronic effect enhanced photodetection performances of Schottky junctions and p–n junctions are discussed. Then, significant results on the photoelectrochemical‐cell‐based photodetector and integrated self‐powered nanosystem are presented, followed by a systematic comparison of different types of photodetectors. Finally, a summary of the previous results is given, and the major challenges that need to be addressed in the future are outlined. The hope is that this review can provide valuable insights into the current status of self‐powered photodetectors and spur new structure and device designs to further enhance photodetection performance.

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Section: Integrated Self‐powered Nanosystemsmentioning

confidence: 99%

Self‐Powered Nanoscale Photodetectors

Tian

Wang

Chen

et al. 2017

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179

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“…The fabrication process (depositing interdigital electrode pattern), including photolithography and electron-beam evaporation processes, is similar to the previous report. 45,49 A ZnO nanowire (length: ∼ 12 μm) could cross the electrode couple (distance: 5 μm). The distance between neighboring electrode couples was 20 μm, ensuring the same c-axis direction of all ZnO nanowires.…”

Section: Methodsmentioning

confidence: 99%

“…The chemical reagents for the preparation of ZnO nanowire arrays were provided by Sinopharm Chemical Reagent Co. Ltd. A seed-assisted hydrothermal method was used to synthesize vertically aligned ZnO nanowire arrays on a Ti substrate. − …”

Section: Experimental Sectionmentioning

confidence: 99%

A Self-Powered Wearable Noninvasive Electronic-Skin for Perspiration Analysis Based on Piezo-Biosensing Unit Matrix of Enzyme/ZnO Nanoarrays

Han

Zhang

et al. 2017

ACS Appl. Mater. Interfaces

Self Cite

131

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The emerging multifunctional flexible electronic-skin for establishing body-electric interaction can enable real-time monitoring of personal health status as a new personalized medicine technique. A key difficulty in the device design is the flexible power supply. Here a self-powered wearable noninvasive electronic-skin for perspiration analysis has been realized on the basis of a piezo-biosensing unit matrix of enzyme/ZnO nanoarrays. The electronic-skin can detect lactate, glucose, uric acid, and urea in the perspiration, and no outside electrical power supply or battery is used in the biosensing process. The piezoelectric impulse of the piezo-biosensing units serves as the power supply and the data biosensor. The working mechanism can be ascribed to the piezoelectric-enzymatic-reaction coupling effect of enzyme/ZnO nanowires. The electronic-skin can real-time/continuously monitor the physiological state of a runner through analyzing the perspiration on his skin. This approach can promote the development of a new-type of body electric and self-powered biosensing electronic-skin.

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“…[16][17][18][19][20][21][22][23] With the future development of wearable devices, the realization of multifunctional e-skin with low power consumption and even autonomous energy is the key to realize the next generation of portable and wearable e-skin in various applications. [24][25][26][27][28] In this review, we summarize the latest development of self-powered multifunctional e-skin, combining its application prospects in the fields of physiological health, humanmachine interaction (HMI), virtual reality (VR), and artificial intelligence (AI). As is demonstrated in Figure 1, the…”

Section: Introductionmentioning

confidence: 99%

Recent progress in self‐powered multifunctional e‐skin for advanced applications

et al. 2022

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Electronic skin (e-skin), new generation of flexible wearable electronic devices, has characteristics including flexibility, thinness, biocompatibility with broad application prospects, and a crucial place in future wearable electronics. With the increasing demand for wearable sensor systems, the realization of multifunctional e-skin with low power consumption or even autonomous energy is urgently needed. The latest progress of multifunctional self-powered e-skin for applications in physiological health, humanmachine interaction (HMI), virtual reality (VR), and artificial intelligence (AI) is presented here. Various energy conversion effects for the driving energy problem of multifunctional e-skin are summarized. An overview of various types of self-powered e-skins, including single-effect e-skins and multifunctional coupling-effects e-skin systems is provided, where the aspects of material preparation, device assembly, and output signal analysis of the self-powered multifunctional e-skin are described. In the end, the existing problems and prospects in this field are also discussed.

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A self-powered flexible vision electronic-skin for image recognition based on a pixel-addressable matrix of piezophototronic ZnO nanowire arrays

Abstract: A new self-powered flexible vision e-skin has been realized from a pixel-addressable matrix of piezophototronic ZnO nanowire arrays.

Cited by 33 publications

References 56 publications

Self‐Powered Nanoscale Photodetectors

Self‐Powered Nanoscale Photodetectors

A Self-Powered Wearable Noninvasive Electronic-Skin for Perspiration Analysis Based on Piezo-Biosensing Unit Matrix of Enzyme/ZnO Nanoarrays

Recent progress in self‐powered multifunctional e‐skin for advanced applications

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