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Evolution of Crystal Orientation in Obliquely Deposited Magnesium Nanostructures for Hydrogen Storage Applications

Published online by Cambridge University Press:  01 February 2011

Mehmet F. Cansizoglu ,
Fumiya Watanabe ,
Pei-I Wang  and
Tansel Karabacak
Mehmet F. Cansizoglu
Affiliation:
mfcansizoglu@ualr.edu, University of Arkansas at Little Rock, Department of Applied Science, 2801 South University Avenue, 72211, AR, 72204, United States, 501 569 80 50, 501 569 80 20
Fumiya Watanabe
Affiliation:
fxwatanabe@ualr.edu, University of Arkansas at Little Rock, Arkansas Nanotechnology Center, Little Rock, AR, 72204, United States
Pei-I Wang
Affiliation:
wangp3@rpi.edu, Rensselaer Polytechnic Institute, Center of Integrated Electronics, Troy, NC, 12180, United States
Tansel Karabacak
Affiliation:
txkarabacak@ualr.edu, University of Arkansas at Little Rock, Department of Applied Science, 2801 South University Avenue, Little Rock, AR, 72204, United States
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Abstract

Crystal orientation (texture) is an important parameter in the hydrogen absorption and desorption properties of various materials. In this study, we investigate the formation of magnesium nanorod arrays with crystal orientations that are not normally observed in conventional Mg thin films. Mg nanorods are produced using an oblique angle deposition technique through a physical self-assembly process. In this study sputtering and thermal evaporation systems are utilized for the growth of Mg nanorods and thin films on silicon wafer pieces. We present a detailed X-ray diffraction and scanning electron microscopy analysis. It is discussed that under oblique incidence, evolution of crystal orientations with lower adatom mobility are promoted due to the shadowing effect.

Keywords

nanostructurehydrogenationenergy-storage
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1042: Symposium S – Materials and Technology for Hydrogen Storage , 2007 , 1042-S04-06
Copyright
Copyright © Materials Research Society 2008

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