Pressure Sensitivity of Charge Conduction Through the Interface Between a Metal Oxide Nanocrystallite and Graphene

Hossein‐Babaei, Faramarz; Yousefiazari, Ehsan; Ghalamboran, Milad

doi:10.1002/admi.202001815

Cited by 4 publications

(2 citation statements)

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“…24–27 GO composites with metal sulfides, phosphides and hydroxides have also been studied for super capacitor electrode applications. 28–30 These examples point to interesting electronic features of GO/M interfaces and illustrate that their electrical properties would strongly depend on the nature of M. 31 These features establish GO and its composites as promising functional materials, but, unlike graphene, the structure and electrical properties of GO/M and GO/MO interfaces have remained relatively unexplored.…”

Section: Introductionmentioning

confidence: 99%

Specific capacitance of graphene oxide–metal interfaces at different deoxygenation levels

Hossein-Babaei,

Naemidehkharghani,

Razmand

2023

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

Specific capacitance of graphene oxide–metal interfaces at different deoxygenation levels

Hossein-Babaei,

Naemidehkharghani,

Razmand

2023

J. Mater. Chem. A

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“…Nanostructured metal oxides with different morphologies have been utilized for a wide range of applications. − Among oxide materials, both SnO 2 and ZnO can be easily grown at low temperatures. These oxide materials are commonly used in several sensors for bio and thermal applications.…”

Section: Introductionmentioning

confidence: 99%

Nanometer-Thick ZnO/SnO₂ Heterostructures Grown on Alumina for H₂S Sensing

Akbari-Saatlu

Procek

Mattsson

et al. 2022

ACS Appl. Nano Mater.

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Designing heterostructure materials at the nanoscale is a well-known method to enhance gas sensing performance. In this study, a mixed solution of zinc chloride and tin (II) chloride dihydrate, dissolved in ethanol solvent, was used as the initial precursor for depositing the sensing layer on alumina substrates using the ultrasonic spray pyrolysis (USP) method. Several ZnO/SnO 2 heterostructures were grown by applying different ratios in the initial precursors. These heterostructures were used as active materials for the sensing of H 2 S gas molecules. The results revealed that an increase in the zinc chloride in the USP precursor alters the H 2 S sensitivity of the sensor. The optimal working temperature was found to be 450 °C. The sensor, containing 5:1 (ZnCl 2 : SnCl 2 ·2H 2 O) ratio in the USP precursor, demonstrates a higher response than the pure SnO 2 (∼95 times) sample and other heterostructures. Later, the selectivity of the ZnO/SnO 2 heterostructures toward 5 ppm NO 2 , 200 ppm methanol, and 100 ppm of CH 4 , acetone, and ethanol was also examined. The gas sensing mechanism of the ZnO/SnO 2 was analyzed and the remarkably enhanced gas-sensing performance was mainly attributed to the heterostructure formation between ZnO and SnO 2 . The synthesized materials were also analyzed by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray, transmission electron microscopy, and X-ray photoelectron spectra to investigate the material distribution, grain size, and material quality of ZnO/SnO 2 heterostructures.

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The Conduction Mechanism in Micron-Thick ZnO Layers Grown on Si Substrates by Spray Pyrolysis

Gharesi,

Karimpour,

Razmand

et al. 2023

2023 31st International Conference on Electrical Engineering (ICEE)

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Pressure Sensitivity of Charge Conduction Through the Interface Between a Metal Oxide Nanocrystallite and Graphene

Abstract: Figure 4. The schematic presentation of a) the fabricated device and its connections to the measurement system, and b) the electromechanical test stage used for applying the predetermined forces to the device under test.

Cited by 4 publications

References 85 publications

Specific capacitance of graphene oxide–metal interfaces at different deoxygenation levels

Specific capacitance of graphene oxide–metal interfaces at different deoxygenation levels

Nanometer-Thick ZnO/SnO₂ Heterostructures Grown on Alumina for H₂S Sensing

The Conduction Mechanism in Micron-Thick ZnO Layers Grown on Si Substrates by Spray Pyrolysis

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Pressure Sensitivity of Charge Conduction Through the Interface Between a Metal Oxide Nanocrystallite and Graphene

Abstract: Figure 4. The schematic presentation of a) the fabricated device and its connections to the measurement system, and b) the electromechanical test stage used for applying the predetermined forces to the device under test.

Cited by 4 publications

References 85 publications

Specific capacitance of graphene oxide–metal interfaces at different deoxygenation levels

Specific capacitance of graphene oxide–metal interfaces at different deoxygenation levels

Nanometer-Thick ZnO/SnO2 Heterostructures Grown on Alumina for H2S Sensing

The Conduction Mechanism in Micron-Thick ZnO Layers Grown on Si Substrates by Spray Pyrolysis

Contact Info

Product

Resources

About

Nanometer-Thick ZnO/SnO₂ Heterostructures Grown on Alumina for H₂S Sensing