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Journal of Chemistry
Volume 2013, Article ID 489734, 7 pages
Research Article

Electrophoretic Deposition of Aluminum Nitride from Its Suspension in Acetylacetone Using Iodine as an Additive

1Department of Chemistry, Delaware State University, 1200 N. DuPont Highway, Dover, DE 19901, USA
2Institute of Energy Conversion, University of Delaware, Newark, DE 19716, USA
3Department of Chemistry, Columbus State University, Columbus, GA 31907, USA

Received 20 June 2012; Revised 28 August 2012; Accepted 26 November 2012

Academic Editor: Mitchell R. M. Bruce

Copyright © 2013 Bizuneh Workie et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We have studied electrophoretic deposition of AlN from its suspension in acetylacetone with I2 as an additive. AlN powder with particle size <10 μm is dispersed to produce a positive charge and deposited on the cathode by applying fields greater than 10 V/cm between the electrodes. X-ray diffraction and FTIR studies indicate that the AlN before and after deposition has the same composition and structure. An increase in the amount of AlN in the suspension, the deposition potential, and the deposition time results in a linear increase in the weight of the AlN deposited. Electrophoretic deposition from 10 g/L AlN suspension shows an initial increase in the weight of AlN deposited with the concentration of I2, and the weight of AlN decreases after reaching a maximum at 0.20 g/L I2.