Facile zinc oxide nanowire growth on graphene via a hydrothermal floating method: towards Debye length radius nanowires for ultraviolet photodetection

Heterojunction nanohybrid zinc oxide nanowires on graphene (ZnO-NW/graphene) combines crystalline ZnO-NWs with high charge mobility of graphene to provide a platform for high-performance devices.

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Low Cost Environmental Sensors Using Zinc Oxide Nanowires and Nanostructures

MRS Proceedings ◽

10.1557/opl.2012.1218 ◽

2012 ◽

Vol 1439 ◽

pp. 139-144 ◽

Cited By ~ 2

Author(s):

Nima Mohseni Kiasari ◽

Saeid Soltanian ◽

Bobak Gholamkhass ◽

Peyman Servati

Keyword(s):

Zinc Oxide ◽

Metal Oxide ◽

High Performance ◽

Low Cost ◽

Chemical Vapor ◽

Environmental Sensors ◽

X Ray Diffraction ◽

Zinc Oxide Nanowires ◽

Oxide Nanowires ◽

Current Voltage

ABSTRACTZinc oxide (ZnO) nanowires (NW) are grown on both silicon and sapphire substrates using conventional chemical vapor deposition (CVD) system. As-grown nanostructures are characterized by scanning electron microscope (SEM), X-ray diffraction (XRD) as well as energy dispersive spectroscopy (EDS) and the results confirm high-quality c-axis growth of single-crystalline zinc oxide nanowires. Nanowire are dispersed in solvent and then placed between micro-patterned gold electrodes fabricated on silicon wafers using low cost and scalable dielectrophoresis (DEP) process for fabrication of oxygen and humidity sensors. These sensors are characterized in a vacuum chamber connected to a semiconductor analyzer. Current-voltage characteristics of each device are systematically investigated under different hydrostatic pressure of various gaseous environments such as nitrogen, argon, dry and humid air. It is observed that the electrical conductivity of the nanowires is significantly dependent on the number of oxygen and water molecules adsorbed to the surface of the metal oxide nanowire. These results are critical for development of low cost metal oxide sensors for high performance ubiquitous environmental sensors of oxygen and humidity.

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Tailoring Zinc Oxide Nanowires for High Performance Amperometric Glucose Sensor

Electroanalysis ◽

10.1002/elan.200603808 ◽

2007 ◽

Vol 19 (9) ◽

pp. 1008-1014 ◽

Cited By ~ 154

Author(s):

Jianfeng Zang ◽

Chang Ming Li ◽

Xiaoqiang Cui ◽

Jianxiong Wang ◽

Xiaowei Sun ◽

...

Keyword(s):

Zinc Oxide ◽

High Performance ◽

Glucose Sensor ◽

Zinc Oxide Nanowires ◽

Oxide Nanowires ◽

Amperometric Glucose Sensor

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Structure and Acetylene Sensing Behavior of Zinc Oxide Nanowires Based Gas Sensor

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.971-973.165 ◽

2014 ◽

Vol 971-973 ◽

pp. 165-169

Author(s):

Qu Zhou ◽

Wei Gen Chen ◽

Shu Di Peng

Keyword(s):

Zinc Oxide ◽

Gas Sensor ◽

High Performance ◽

Zinc Acetate Dihydrate ◽

Hydrothermal Process ◽

Zinc Oxide Nanowires ◽

Oxide Nanowires ◽

Metal Oxide Nanostructures ◽

Low Dimensional ◽

Fault Characteristic

Low-dimensional semiconducting metal oxide nanostructures have gained great interest for developing high performance chemical gas sensors. In this study, we successfully synthesized quasi one-dimensional zinc oxide nanowires via a simple and facile hydrothermal process with zinc acetate dihydrate as precursor and polyethylene glycol as surfactant. The crystalline structures and microstructures of the as prepared samples were investigated by X-ray powder diffraction and field emission scanning electron microscopy, and a possible growth process was discussed in detail. Moreover, thick film gas sensor was fabricated with the as prepared nanowires and its sensing properties to acetylene gas, an important fault characteristic gases dissolved in oil-filled power equipments was measured.

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Lithium-Doped Zinc Oxide Nanowires–Polymer Composite for High Performance Flexible Piezoelectric Nanogenerator

ACS Nano ◽

10.1021/nn5046568 ◽

2014 ◽

Vol 8 (10) ◽

pp. 10844-10850 ◽

Cited By ~ 80

Author(s):

Sung-Ho Shin ◽

Young-Hwan Kim ◽

Min Hyung Lee ◽

Joo-Yun Jung ◽

Jae Hun Seol ◽

...

Keyword(s):

Zinc Oxide ◽

Polymer Composite ◽

High Performance ◽

Zinc Oxide Nanowires ◽

Oxide Nanowires

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Effect of Electromechanical Coupling on the Young’s Modulus of Zinc Oxide Nanowires

Volume 4: 20th International Conference on Design Theory and Methodology; Second International Conference on Micro- and Nanosystems ◽

10.1115/detc2008-49911 ◽

2008 ◽

Author(s):

A. V. Desai ◽

M. A. Haque

Keyword(s):

Zinc Oxide ◽

Young’S Modulus ◽

Electric Fields ◽

Electromechanical Coupling ◽

Young's Modulus ◽

Piezoelectric Materials ◽

Zinc Oxide Nanowires ◽

Oxide Nanowires ◽

Zinc Oxide Nanowire ◽

Molecular Bonding

The Young’s modulus of zinc oxide nanowires was measured to be significantly lower than bulk zinc oxide, which cannot be explained within the framework of existing theories. We propose that the strong electromechanical coupling in piezoelectric materials, such as zinc oxide, influences the measured mechanical properties. The asymmetric wurtzite crystal structure and the ionic nature of the molecular bonding result in internal electric fields during straining of the zinc oxide nanowire, which in turn lead to reduction in the measured modulus. In case of flexural deformation, additional electromechanical coupling is present due to the flexoelectric effect.

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