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High Quality Hydrothermal ZnO Crystals

Published online by Cambridge University Press:  15 February 2011

M. Suscavage
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA 01731, U.S.A.
M. Harris
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA 01731, U.S.A.
D. Bliss
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA 01731, U.S.A.
P. Yip
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA 01731, U.S.A.
S.-Q. Wang
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA 01731, U.S.A.
D. Schwall
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA 01731, U.S.A.
L. Bouthillette
Affiliation:
Air Force Research Laboratory, Sensors Directorate, Hanscom AFB, MA 01731, U.S.A.
J. Bailey
Affiliation:
Solid State Scientific Corporation, Hollis, NH 03049, U.S.A.
M. Callahan
Affiliation:
Solid State Scientific Corporation, Hollis, NH 03049, U.S.A.
D. C. Look
Affiliation:
University Research Center, Wright State University, Dayton OH 45435, U.S.A.
D. C. Reynolds
Affiliation:
University Research Center, Wright State University, Dayton OH 45435, U.S.A.
R. L. Jones
Affiliation:
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH 45433, U.S.A.
C. W. Litton
Affiliation:
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH 45433, U.S.A.
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Abstract

Zinc Oxide crystals have historically been grown in hydrothermal autoclaves with a basic mineralizer; however, doubts have been raised about the quality of such crystals because they have often exhibited large x-ray rocking curve widths and low photoluminescence (PL) yield with large linewidths. Several ZnO crystals were grown hydrothermally and sliced parallel to the c-plane. This resulted in opposite surfaces (the C+ and C-) exhibiting pronounced chemical and mechanical differences. Different surface treatments were investigated and compared by PL both at room temperature and liquid helium temperatures, and by double axis X-ray rocking curve measurements. The high quality of hydrothermally-grown ZnO is substantiated by the narrow rocking curve widths and sharp PL peaks obtained. A critical factor in obtaining these results was found to be surface preparation.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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References

(1) Bagnall, D. M., Chen, Y. F., Zhu, Z., Yao, T., Shen, M. Y., and Goto, T., Appl. Phys. Lett. 73 (1998) 1038.CrossRefGoogle Scholar
(2) Monchamp, R. R., “Growth of Zinc Oxide Crystals - Interim Engineering Progress Report,” Airtron Division of Litton Industries, Morris Plains, New Jersey, ASD project Nr.-7-988, Contract No. AF33(657)-8795, November, 1964.Google Scholar
(3) Mariano, A. N. and Hanneman, R. E., J. Appl. Phys. 34 (1963) 384.CrossRefGoogle Scholar
(4) Croxall, D. F. and Ward, R., J. Cryst. Growth, 22 (1974) 117.CrossRefGoogle Scholar

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