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Effect of Aluminum Nitrate Concentration in Zinc Acetate Precursor on ZnO:Al Thin Films Prepared by Spray Pyrolysis

Published online by Cambridge University Press:  31 January 2011

Samerkhae Jongthammanurak ,
Sirirak Phakkeeree ,
Yot Boontongkong  and
Chanchana Thanachayanont
Samerkhae Jongthammanurak
Affiliation:
[email protected], 1National Metal and Materials Technology Center, Pathumthani, Thailand
Sirirak Phakkeeree
Affiliation:
[email protected], Kasetsart University, Bangkok, Thailand
Yot Boontongkong
Affiliation:
[email protected], 1National Metal and Materials Technology Center, Pathumthani, Thailand
Chanchana Thanachayanont
Affiliation:
[email protected], 1National Metal and Materials Technology Center, Pathumthani, Thailand
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Abstract

Aluminium-doped zinc oxide (ZnO) films have been prepared by spray pyrolysis technique using the mixed solution of zinc acetate dihydrate and aluminium nitrate nonahydrate in methanol. Concentration of aluminum in the solution was varied in a range of 1, 3 and 5 atomic percents. The results from X-ray diffraction showed that the preferred orientation of ZnO films changed to the [002] direction when the concentration of aluminum in the solution exceeded 1 atomic percents. ZnO films deposited from the 3 atomic percent Al containing solution had the largest grains and showed the lowest resistivity of 75 Ω-cm. Addition of aluminum into the precursor solution shifted the absorption edge towards longer wavelengths.

Keywords

spray pyrolysisoxidemicrostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1201: Symposium H – Zinc Oxide and Related Materials-2009 , 2009 , 1201-H05-24
Copyright
Copyright © Materials Research Society 2010

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