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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 11
BKCSDE 30(11)
November 20, 2009 

 
Title
Physical and Chemical Investigation of Substrate Temperature Dependence of Zirconium Oxide Films on Si(100)
Author
Misun Chun, Myung Jun Moon, Juyun Park, Yong Cheol Kang*
Keywords
Zirconia, XPS, Oxidation state, RF-sputtering, Thin film
Abstract
We report here the surface behavior of zirconium oxide deposited on Si(100) substrate depending on the different substrate temperatures. The zirconium oxide thin films were successfully deposited on the Si(100) surfaces applying radio-frequency (RF) magnetron sputtering process. The obtained zirconium oxide films were characterized by X-ray photoelectron spectroscopy (XPS) for study about the chemical environment of the elements, X-ray diffraction (XRD) for check the crystallinity of the films, spectroscopic ellipsometry (SE) technique for measuring the thickness of the films, and the morphology of the films were investigated by atomic force microscope (AFM). We found that the oxidation states of zirconium were changed from zirconium suboxides (ZrOx,y, x,y < 2) (x; higher and y; lower oxidation state of zirconium) to zirconia (ZrO2), and the surface was smoothed as the substrate temperature increased.
Page
2729 - 2734
Full Text
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