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Deposition of Zinc Selenide by Atomic Layer Epitaxy for Multilayer X-Ray Optics

Published online by Cambridge University Press:  21 February 2011

J.K. Shurtleff
Affiliation:
Center for X-ray Imaging, Brigham Young University, Provo, Utah, 84602
D.D. Allred
Affiliation:
Center for X-ray Imaging, Brigham Young University, Provo, Utah, 84602
R.T. Perkins
Affiliation:
Center for X-ray Imaging, Brigham Young University, Provo, Utah, 84602
J.M. Thorne
Affiliation:
Center for X-ray Imaging, Brigham Young University, Provo, Utah, 84602
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Abstract

Thin film deposition techniques currently being used to produce multilayer x-ray optics (MXOs) have difficulty producing smooth, uniform multilayers with d-spacings less than about twelve angstroms. We are investigating atomic layer epitaxy (ALE) as an alternative to these techniques.

ALE is a chemical vapor deposition technique which deposits an atomic layer of material during each cycle of the deposition process. The thickness of a film deposited by ALE depends only on the number of cycles. Multilayers deposited by ALE should be smooth and uniform with precise d-spacings which makes ALE an excellent technique for producing multilayer x-ray optics.

We have designed and built an ALE system and we have used this system to deposit ZnSe using diethyl zinc and hydrogen selenide.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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References

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