Hydrothermal growth of regular ZnO nanoflowers for super-high-detectivity ultraviolet photodetector application

Abstract

In this work, a facile hydrothermal method was used to grow ZnO nanoflowers onto an interdigital patterned fluorine-doped tin oxide (FTO) glass substrate, and the crystal structure and morphology of the sample were investigated. The results showed that a great number of regular ZnO nanoflowers grew onto the substrate. Furthermore, the ZnO nanoflowers were used as photosensitive layers, an ultraviolet (UV) photodetector was achieved, and its UV sensing performance was evaluated in detail. The results indicated that this ZnO nanoflowers UV photodetector exhibited good response to 365 nm UV light. Its responsivity and detectivity were up to 135.5 A/W (5 V) and 1.5×10¹³ Jones, respectively, and the response speed was rapid (4.96 s). This work explored a new way for achieving the high-performance nanostructured ZnO UV photodetectors.

Keywords

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References

[1] Wu W L, Liu C K, Han L X, et al. . Wafer-scale high sensitive UV photodetectors based on novel AlGaN/n-GaN/p-GaN heterostructure HEMT. Applied surface science. 2023, 618: 156618 J]

[2] Zhang Y F, Liu X Y, Yan L M, et al. . Ytterbium doping reduces the dark current of UV photoelectric detector based on TiO₂. Materials chemistry and physics. 2023, 293: 126966 J]

[3] Pacheco E, Zhou B, Aldalbahi A, et al. . Zero-biased and visible-blind UV photodetectors based on nitrogen-doped ultrananocrystalline diamond nanowires. Ceramics international. 2022, 48(3): 3757-3761 J]

[4] Gupta A A, Arunachalam S, Cloutier S G, et al. . Fully aerosol-jet printed, high-performance nanoporous ZnO ultraviolet photodetectors. ACS photonics. 2018, 5(10): 3923-3929 J]

[5] Pallavolu M R, Maddaka R, Viswanath S K, et al. . High-responsivity self-powered UV photodetector performance of pristine and V-doped ZnO nano-flowers. Optics & laser technology. 2023, 157: 108776 J]

[6] Lee D, Seol M L, Motilal G, et al. . All 3D-printed flexible ZnO UV photodetector on an ultraflat substrate. ACS sensors. 2020, 5(4): 1028-1032 J]

[7] Noh Y, Jeong H, Lee D. Enhanced ultraviolet photodetector using zinc oxide nanowires with intense pulsed light post-treatment. Journal of alloys and compounds. 2021, 871: 159537 J]

[8] Shrish A, Wu C M, Motora K G, et al. . Development of p-type zinc oxide nanorods on zirconium-based metallic glass nanotube arrays by facile hydrothermal method for gas sensing applications. Chemical engineering journal. 2023, 463: 142381 J]

[9] Ou S L, Yu F P, Wu D S. Transformation from film to nanorod via a sacrifical layer: pulsed laser deposition of ZnO for enhancing photodetector performance. Scientific reports. 2017, 7: 14251 J]

[10] Zhang Z Y, Qian J, Qian L R, et al. . Finite element simulation of Rayleigh surface acoustic wave in (100) AlN/(100) ZnO/diamond layered structure. Optoelectronics letters. 2023, 19(12): 732-738 J]

[11] Chen M, Li X, Li Y X, et al. . MOF-derived Co₃O₄ nanoparticles over direct grown ZnO nanoflower on ceramic for CO sensor with high selectivity. Sensors and actuators B: chemical. 2024, 401: 134951 J]

[12] Zhao X, Jheng J C, Chou N N, et al. . Synthesis of ZnO nanoflower arrays on a protrusion sapphire substrate and application of Al-decorated ZnO nanoflower matrix in gas sensors. Sensors. 2023, 23(12): 5629 J]

[13] Sudapalli A M, Shimpi N G. 3D ZnO sunstar rose nanoflowers morphology with surfactant-assisted reflux exhibit excellent optical properties and photocatalytic activity against hazardous organic dyes. Optical materials. 2023, 136: 113391 J]

[14] Ma Z Y, Li G, Zhang X L, et al. . High-performance and broadband photodetection of bicrystalline (GaN)_1-x(ZnO)_x solid solution nanowires via crystal defect engineering. Journal of materials science & technology. 2021, 85: 255-262 J]

[15] Shahid M, Cheng J, Li T J, et al. . High photodetectivity of low-voltage flexible photodetectors assembled with hybrid aligned nanowire arrays. Journal of materials chemistry C. 2018, 6(24): 6510-6519 J]

[16] Zhao B, Wang F, Chen H Y, et al. . An ultrahigh responsivity (9.7 mA W⁻¹) self-powered solar-blind photodetector based on individual ZnO–Ga₂O₃ heterostructures. Advanced functional materials. 2017, 27(17): 1700264 J]

[17] Ji Y, Wu L Y, Liu Y, et al. . Chemo-phototronic effect induced electricity for enhanced self-powered photodetector system based on ZnO nanowires. Nano energy. 2021, 89: 106449 J]

[18] Li F Z, Meng Y, Kang X L, et al. . High-mobility In and Ga co-doped ZnO nanowires for high-performance transistors and ultraviolet photodetectors. Nanoscale. 2020, 12(30): 16153-16161 J]

[19] Zheng H R, Jiang Y R, Yang S Y, et al. . ZnO nanorods array as light absorption antenna for high-gain UV photodetectors. Journal of alloys and compounds. 2020, 812: 152158 J]

[20] Su L X, Ouyang W X, Fang X S. Facile fabrication of heterostructure with p-BiOCl nanoflakes and n-ZnO thin film for UV photodetectors. Journal of semiconductors. 2021, 42(5): 052301 J]

[21] Xu M, Yuan Z L, Wang B Y, et al. . Hydrothermal synthesis of single-crystalline Ag-doped ZnO nanoneedles for ultraviolet detection. Journal of electronic materials. 2022, 51: 7020-7027 J]

[22] Li M H, Chen J J, Chen Y S, et al. . Development of a broadband photodetector utilizing ZnO nanorods with grating structure fabricated via nanoimprint lithography. Sensors and actuators A: physical. 2024, 375: 115530 J]

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Tianjin University of Technology