Synthesis and Characterization of ZnO Nano Discs Using Wet Chemical Method for Sensing Applications

Bhat, Pratima; Pradhan, Uma Ullas; Kumar, S. K. Naveen

doi:10.1016/j.matpr.2017.12.360

Cited by 11 publications

(5 citation statements)

References 18 publications

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“…There are many approaches for the growth of ZnO nanostructures such as catalytic growth via vapor liquid solid (VLS) mechanism [ 21 , 22 ], thermal evaporation [ 23 , 24 , 25 ], pulsed laser deposition (PLD) [ 26 , 27 ], hydrothermal growth [ 28 , 29 , 30 , 31 ], rapid hydrothermal growth [ 32 , 33 , 34 ], and wet chemical processing [ 35 , 36 , 37 ], etc. The choice of the growth technique is dictated by the requirements of the application.…”

Section: Introductionmentioning

confidence: 99%

Toward the Growth of Self-Catalyzed ZnO Nanowires Perpendicular to the Surface of Silicon and Glass Substrates, by Pulsed Laser Deposition

et al. 2020

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Vertically-oriented zinc oxide (ZnO) nanowires were synthesized on glass and silicon substrates by Pulsed Laser Deposition and without the use of a catalyst. An intermediate c-axis oriented nanotextured ZnO seed layer in the form of nanowall network with honey comb structure allows the growth of high quality, self-forming, and vertically-oriented nanowires at relatively low temperature (<400 °C) and under argon atmosphere at high pressure (>5 Torr). Many parameters were shown to affect the growth of the ZnO nanowires such as gas pressure, substrate–target distance, and laser energy. Growth of a c-axis-crystalline array of nanowires growing vertically from the energetically favorable sites on the seed layer is observed. Nucleation occurs due to the matching lattice structure and the polar nature of the ZnO seed layer. Morphological, structural, and optical properties were investigated. X-ray diffraction (XRD) revealed highly c-axis aligned nanowires along the (002) crystal plane. Room temperature photoluminescence (PL) measurements showed a strong and narrow bandwidth of Ultraviolet (UV) emission, which shifts to lower wavelength with the increase of pressure.

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Section: Introductionmentioning

confidence: 99%

Toward the Growth of Self-Catalyzed ZnO Nanowires Perpendicular to the Surface of Silicon and Glass Substrates, by Pulsed Laser Deposition

et al. 2020

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“…Synthesis, deposition, fabrication of ZnO sensor and the characterization study of ZnO as thin-film sensing layer is discussed in detail in our previous paper [8,9].…”

Section: Resultsmentioning

confidence: 99%

Real-time detection of 1-butanol VOCin an indigenously developed Gas chamber

Bhat

Kumar

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In this paper, we discuss the sensing studies of 1-butanol volatile organic compound (VOC) in an indigenously developed gas chamber. Designing of the portable gas chamber is discussed with the integration of thin-film ZnO sensor on an Inter-digitated electrodefabricated on a flexible Teflon substrate. Exposure of 1-butanol VOC inside the chamber causes a change in the resistance of the ZnO thin film. This change in the resistance is converted to voltage with a Wheatstone bridge network and an instrumentation amplifier circuit designed using precision components.The sensitivity of the sensor for 50 ppm and 100 ppm of 1-butanol is tested at room temperature (27°C) and the results are compared with our early studies using Keithley instruments.

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“…ZnO is also employed in diverse applications, including sensors, photocatalysis, solar cells, and three-dimensional (3D) surface-enhanced Raman spectroscopy platform applications. ZnO, which can detect UV light ,,,− and various gases, such as H 2 , ,− H 2 S, , O 2 , exhaled breath, and volatile organic compounds (VOCs), has been synthesized by various strategies, including thermal oxidation, , wet-chemical processes, , laser-assisted flow deposition, nonhydrolytic aminolysis, hydrothermal methods, ,,, sol–gel methods, electrospinning, solvent casting, and pulsed laser deposition …”

Section: Mons As Sensing Materialsmentioning

confidence: 99%

Metal-Oxide Nanomaterials Synthesis and Applications in Flexible and Wearable Sensors

et al. 2021

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Metal-oxide nanomaterials (MONs) have gained considerable interest in the construction of flexible/wearable sensors due to their tunable band gap, low cost, large specific area, and ease of manufacturing. Furthermore, MONs are in high demand for applications, such as gas leakage alarms, environmental protection, health tracking, and smart devices integrated with another system. In this Review, we introduce a comprehensive investigation of factors to boost the sensitivity of MON-based sensors in environmental indicators and health monitoring. Finally, the challenges and perspectives of MON-based flexible/wearable sensors are considered.

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Synthesis and Characterization of ZnO Nano Discs Using Wet Chemical Method for Sensing Applications

Cited by 11 publications

References 18 publications

Toward the Growth of Self-Catalyzed ZnO Nanowires Perpendicular to the Surface of Silicon and Glass Substrates, by Pulsed Laser Deposition

Toward the Growth of Self-Catalyzed ZnO Nanowires Perpendicular to the Surface of Silicon and Glass Substrates, by Pulsed Laser Deposition

Real-time detection of 1-butanol VOCin an indigenously developed Gas chamber

Metal-Oxide Nanomaterials Synthesis and Applications in Flexible and Wearable Sensors

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