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  4. Zinc Oxide Nanowires Synthesized Using A Hot Tube Thermal Evaporation Under Intermediate Heating Period
 
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Zinc Oxide Nanowires Synthesized Using A Hot Tube Thermal Evaporation Under Intermediate Heating Period

Journal
Malaysian Journal of Fundamental and Applied Sciences
Date Issued
2013
Author(s)
Samsudi Sakrani
Peshawa Omer Amin
Syahida Suhaimi
DOI
http://dx.doi.org/10.11113/mjfas.v9n4.109
Abstract
Zinc oxide nanowires have been synthesized using a hot tube vacuum evaporation method. Essentially, ZnO powder and silicon substrate were placed in upper and lower streams of a horizontal quartz tube, respectively and heated via a furnace up to 960 C for about 1 hour. During the heating process, evaporated ZnO vapour was transported to lower stream and deposited onto the substrate containing Au catalyst at constant pressure of 1 torr. The substrate tilt angles were chosen for 0∞ and 30∞ and argon flow rates between 1.1-5.0 sccm. Observation on FESEM/EDX and field emission results revealed the optimal growth of ZnO nanowires which occurred at an angle 30∞ and flow rate of 5 sccm. Parameters such as atom% of Zn and O and aspect ratio were measured and analysed.

| Hot-tube thermal evaporation | ZnO Nanowires |Vapour-liquid-solid mechanism
Subjects

Hot-tube thermal evap...

ZnO Nanowires

Vapour-liquid-solid m...

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