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Synthesis and luminescence properties of novel ZnO nanostructures: micro and nanospheres, polyhedral cages, tetra-pods, needles, tipped nanorods, nanowires and other “microphone–shaped” structures

Published online by Cambridge University Press:  01 February 2011

Aurangzeb Khan ,
Wojciech M Jadwisienczak  and
Martin E Kordesch
Aurangzeb Khan
Affiliation:
khan@phy.ohiou.edu, Ohio University, Physics and astronomy, 251B Clippinger lab, athens, OH, 45701, United States, 740-597-1259, 740-593-0433
Wojciech M Jadwisienczak
Affiliation:
jadwisie@oak.cats.ohiou.edu, Ohio University, School of Electrical Engneering and Computer Science, United States
Martin E Kordesch
Affiliation:
kordesch@phy.ohiou.edu, Ohio University, Physics and astronomy, United States
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Abstract

Novel ZnO nanostructures such as hollow nanospheres, nano-cages, nanoneedles, tetra-pods, nanowires, aligned nanorods and nanotubes are synthesized via thermal evaporation of ZnO and graphite powder mixtures in reduced oxygen atmosphere in the presence of argon and nitrogen flows. The ZnO nanostructures, especially nanospheres, have a unique shape and are hollow inside with walls densely decorated with aligned nanowires. Photoluminescence of synthesized ZnO structures measured at 300 K exhibits a strong near band edge peak at ∼380 nm and deep level green band centered at ∼550 nm. Fabricated ZnO structures can be studied for various applications in optoelectronics and sensors.

Keywords

nanostructureluminescencesemiconducting
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 900: Symposium O – Nanoparticles and Nanostructures in Sensors and Catalysis , 2005 , 0900-O06-18
Copyright
Copyright © Materials Research Society 2006

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References

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