Andelman, T.; Gong, Y.; Neumark, G.; O

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Diameter Control and Photoluminescence of Zinc
Oxide Nanostructures
Stephen OBrien, Columbia University, DMR 0348938
Zinc oxide (ZnO) is a widely studied material,
both for its many applications, which range from
optoelectronic devices to rubber additives, and
for its numerous possible nanocrystal
morphologies, including spherical nanoparticles ,
nanotriangles, and nanorods. The nanorod
morphology in particular shows promise for use in
nanolasers, photovoltaic devices and field effect
transistors. We apply materials chemistry to
control the diameter of ZnO nanorods by
increasing the chain length of the amine solvent
used. The PL data shows that the green emission
varies with nanorod diameter, thus diameter
control can be an effective method to control
green emission.
Andelman, T. Gong, Y. Neumark, G. OBrien, S.
"Diameter Control and Photoluminescence of ZnO
Nanorods from Trialkylamines" Journal of
Nanomaterials, 2007, doi10.1155/2007/73824. And
elman, T. Gong, Y. Y. Polking, M. Yin, M.
Kuskovsky, I. Neumark, G. O'Brien, S.
"Morphological control and photoluminescence of
zinc oxide nanocrystals" Journal of Physical
Chemistry B 2005, 109, 14314-14318.
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Diameter Control and Photoluminescence of Zinc
Oxide Nanostructures
Stephen OBrien, Columbia University, DMR 0348938
Dr. Tamar Andelman, former NSF Graduate Student
Fellow worked on generating zinc oxide
nanostructures for her PhD. Her thesis was on
understanding and controlling zinc oxide
properties at the nanoscale.
She also engaged in Outreach and Education at
local schools, such as the East Side Community
High School, New York, in order to demonstrate
the value of understanding material properties at
the bulk scale!