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Crystals 2018, 8(5), 223; https://doi.org/10.3390/cryst8050223

One-Dimensional Zinc Oxide Nanomaterials for Application in High-Performance Advanced Optoelectronic Devices

1
School of Physics and Technology, University of Jinan, 336 Nanxinzhuang West Road, Jinan 250022, Shandong, China
2
CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China
3
School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, Guangdong, China
4
Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 239 Zhangheng Rd., Pudong, Shanghai 201800, China
5
College of Chemistry & Environmental Science, Hebei University, Baoding 071002, Hebei, China
6
State Key Laboratory of Advanced Materials for Smart Sensing, General Research Institute for Nonferrous Metals, Beijing 100088, China
*
Authors to whom correspondence should be addressed.
Received: 27 April 2018 / Revised: 13 May 2018 / Accepted: 13 May 2018 / Published: 18 May 2018
(This article belongs to the Special Issue Functional Oxide Based Thin-Film Materials)

Abstract

Unlike conventional bulk or film materials, one-dimensional (1D) semiconducting zinc oxide (ZnO) nanostructures exhibit excellent photoelectric properties including ultrahigh intrinsic photoelectric gain, multiple light confinement, and subwavelength size effects. Compared with polycrystalline thin films, nanowires usually have high phase purity, no grain boundaries, and long-distance order, making them attractive for carrier transport in advanced optoelectronic devices. The properties of one-dimensional nanowires—such as strong optical absorption, light emission, and photoconductive gain—could improve the performance of light-emitting diodes (LEDs), photodetectors, solar cells, nanogenerators, field-effect transistors, and sensors. For example, ZnO nanowires behave as carrier transport channels in photoelectric devices, decreasing the loss of the light-generated carrier. The performance of LEDs and photoelectric detectors based on nanowires can be improved compared with that of devices based on polycrystalline thin films. This article reviews the fabrication methods of 1D ZnO nanostructures—including chemical vapor deposition, hydrothermal reaction, and electrochemical deposition—and the influence of the growth parameters on the growth rate and morphology. Important applications of 1D ZnO nanostructures in optoelectronic devices are described. Several approaches to improve the performance of 1D ZnO-based devices, including surface passivation, localized surface plasmons, and the piezo-phototronic effect, are summarized. View Full-Text
Keywords: zinc oxide; one-dimensional nanostructure; light-emitting diode; photodetector; localized surface plasmon; piezo-phototronic effect zinc oxide; one-dimensional nanostructure; light-emitting diode; photodetector; localized surface plasmon; piezo-phototronic effect
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Ding, M.; Guo, Z.; Zhou, L.; Fang, X.; Zhang, L.; Zeng, L.; Xie, L.; Zhao, H. One-Dimensional Zinc Oxide Nanomaterials for Application in High-Performance Advanced Optoelectronic Devices. Crystals 2018, 8, 223.

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