Self-Assembled ZnO Nanostructure for Field-Emission Devices

P. Bhattacharya; D. Varshney; K. Samanta; R.S. Katiyar

doi:10.4028/www.scientific.net/JNanoR.4.19

Paper Titles

INVITED PAPER: Instrumentation and Biological Applications of High-Resolution Frequency Modulation Atomic Force Microscopy in Liquid
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Photoluminescent Photonic Devices from Nanostructured Porous Silicon Fabricated Using Lightly Doped Silicon
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Self-Assembled ZnO Nanostructure for Field-Emission Devices
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Growth and Luminescence of Nanowires and Oriented Nanoplate Arrays of Mg Doped ZnO
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Study of the Silanization Process in CNFs: Time, Temperature, Silane Type and Concentration Influence
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Technology of Fabrication and Morphology of Multiwalled Carbon Nanotubes on Co-Ni/MgO Catalysts by Thermal CVD
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Stability of Thin Gold Nano Wires
p.65

Solution Processing Route to High Efficiency CuIn(S,Se)₂ Solar Cells
p.79

Synthesis and Characterization of Tin Oxide Nanoparticle for Humidity Sensor Applications
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HomeJournal of Nano ResearchJournal of Nano Research Vol. 4Self-Assembled ZnO Nanostructure for...

Self-Assembled ZnO Nanostructure for Field-Emission Devices

Abstract:

Zinc oxide (ZnO) nanorods on Au patterned Si substrates were fabricated using vapor transport method. The XRD pattern showed the ZnO nanorods were highly c-axis oriented similar to ZnO thin films. The photoluminescence spectrum at 77 K of ZnO nanorods was consisting of the fundamental near band edge emission of ZnO in the UV region along with a broad defect induced emission around green band. The field emission properties of the nanorods showed a current density of 1mA/cm2 at an applied field of 10V/m, which is comparable to other reported values of ZnO nanorods. The patterned gold island formed by self-assembly of polystyrene ball on Si substrate acted as a catalyst in the growth of nanorods as well as stable ohmic contact for field emission.