Developing high-sensitivity UV sensors based on ZnO nanorods grown on TiO2 seed layer films using solution immersion method

Asib, N. A. M.; Husairi, F.S.; Eswar, Kevin Alvin; Afaah, A.N.; Mamat, M. H.; Rusop, M.; Khusaimi, Z.

doi:10.1016/j.sna.2019.111827

Cited by 33 publications

(17 citation statements)

References 30 publications

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“…Hydrothermal method is carried out in an aqueous solution by an autoclave system [ 2 , 33 , 34 , 37 , 41 ]. It contains two typical steps as illustrated in Figure 3 .…”

Section: Zno Nanostructures’ Hydrothermal Growthmentioning

confidence: 99%

“…Over decades, the hydrothermal technique has proven beneficial for the synthesis of ZnO nanostructures on either rigid or flexible substrates. Rigid substrates are often concerned about glass [ 2 , 22 , 33 , 44 , 48 , 59 , 61 ], whereas flexible substrates include silicon [ 45 , 100 ], polyimide (PI) [ 44 , 45 , 48 , 100 ], PET [ 19 , 34 , 68 ], polycarbonate (PC) [ 48 , 100 ], Kapton [ 101 ], PDMS [ 17 ], carbon fiber [ 17 , 29 ] and paper [ 17 ].…”

Section: Zno Nanostructures’ Hydrothermal Growthmentioning

confidence: 99%

“…The careful control of initial reaction and precursor conditions gave predicted stoichiometric compositions of final arrivals. Multiple metal oxide nanostructures can be directly grown on the same substrate with consecutive hydrothermal growths with different precursor mixtures [ 1 , 2 , 44 ]. For instance, Yeo et al applied LIHG twice with separate precursors to synthesize ZnO and TiO 2 nanowires on the same PI substrate [ 44 ].…”

Section: Influence Of Fabrication Parameters On Zno Hydrothermal Growthmentioning

confidence: 99%

“…However, higher exposure has been reported to cause side effects such as skin cancer, cataracts or immune system suppression. Therefore, sensors that possess the ability of efficiently detecting UV signals have attracted huge attention [ 1 , 2 , 3 ]. These UV sensors were divided into two groups, including vacuum UV sensors and solid-state UV sensors [ 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

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Economic Friendly ZnO-Based UV Sensors Using Hydrothermal Growth: A Review

et al. 2021

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Ultraviolet (UV) sensors offer significant advantages in human health protection and environmental pollution monitoring. Amongst various materials for UV sensors, the zinc oxide (ZnO) nanostructure is considered as one of the most promising candidates due to its incredible electrical, optical, biomedical, energetic and preparing properties. Compared to other fabricating techniques, hydrothermal synthesis has been proven to show special advantages such as economic cost, low-temperature process and excellent and high-yield production. Here, we summarize the latest progress in research about the hydrothermal synthesis of ZnO nanostructures for UV sensing. We particularly focus on the selective hydrothermal processes and reveal the effect of key factors/parameters on ZnO architectures, such as the laser power source, temperature, growth time, precursor, seeding solution and bases. Furthermore, ZnO hydrothermal nanostructures for UV applications as well as their mechanisms are also summarized. This review will therefore enlighten future ideas of low-temperature and low-cost ZnO-based UV sensors.

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“…Hydrothermal method is carried out in an aqueous solution by an autoclave system [ 2 , 33 , 34 , 37 , 41 ]. It contains two typical steps as illustrated in Figure 3 .…”

Section: Zno Nanostructures’ Hydrothermal Growthmentioning

confidence: 99%

Section: Zno Nanostructures’ Hydrothermal Growthmentioning

confidence: 99%

Section: Influence Of Fabrication Parameters On Zno Hydrothermal Growthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Economic Friendly ZnO-Based UV Sensors Using Hydrothermal Growth: A Review

et al. 2021

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“…In the case of UV sensing, narrow band gap semiconductors Si and GaAs are widely used to sense UV intensity. However, their UV sensitivity is relatively low [30], and the semiconductor material is normally sensitive to infrared and visible light and thus cause cross-effects [31][32][33]. Moreover, the processing semiconductor material is usually complicated and the cost is high.…”

Section: Introductionmentioning

confidence: 99%

Sensing Characteristics of Fiber Fabry-Perot Sensors Based on Polymer Materials

Liu

et al. 2020

IEEE Access

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A simple optic-fiber Fabry-Perot (FP) sensing technique was proposed and experimentally investigated by using polymer material to connect the ends of two singlemode fibers. Four different polymer materials (benzocyclobutene (BCB), UV88 (Relentless, China), Loctite3525 (HenKel, Germany), and NOA68 (Norland, USA)) filling the FP cavity were used to comparatively study the sensing performance of temperature, strain and refractive index. The result shows that the FP sensor with BCB has excellent repeatability with good linear response to temperature in a wide range from room temperature to 250 C, which is much larger than that of other three materials (<90 C), while UV88 with a cost of less than 1/10 of the other three polymer materials has the best sensitivity to strain and temperature. In addition, the FP sensor was firstly applied to measure ultraviolet (UV) light intensity. The test results demonstrate that the proposed FP sensor structure has a good linear response and repeatability to UV intensity for all four polymer materials, and Loctite3525 has the highest sensitivity (0.0087 nm/(mw/cm 2)) and the best repeatability among the four polymer materials.

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