Abstract
Computational studies of thermal fields and resulting thermoelastic stress fields were undertaken for the vertical Bridgman-Stockbarger growth of CdZnTe crystals. Companion experimental studies included the growth of crystals grown with the same process parameters and the same geometry as the process modeled in the computations. Characteristics of the crystals grown were compared with the computational predictions. Predictions of growth ampoule outer wall temperatures agree well with thermocouple data taken during the growth experiment. Additionally, the computed excess stress distribution resulting from the thermoelastic stress history in the solid is seen to agree qualitatively with synchrotron contour topography on a slice taken from the grown ingot. The computational models are shown to provide a good tool for the study of the influence of process parameters on the quality of crystals grown by this method, at least as far as thermal stress influences the defect distribution. The influence of low-g and high-g environments on growth is discussed.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
D.J. Larson, Jr., R.P. Silberstein, D. DiMarzio, F.M. Carlson, D. Gillies, G. Long, M. Dudley and J. Wu, Compositional strain contour and property mapping of CdZnTe boules and wafers, Semicond. Sci. Technol. 8:911 (1993).
S. Miyazaki, Elastic constant matrix required for thermal stress analysis and bulk single crystals during Czochralski growth, J. Crystal Growth 106:149(1990).
R.F.S. Hearmon, “An Introduction to Applied Anisotropic Elasticity,” Oxford University Press, London. (1961).
R. Balasubramanian and W.R. Wilcox, Mechanical properties of CdTe, Mat. Sci. Eng. B16:1 (1993).
H.J. McSkimin and D.G. Thomas, Elastic moduli of cadmium telluride, J. Appl. Phys. 33:56 (1962).
D. Berlincort, H. Jaffe and L.R. Shiozawa, Electroelastic properties of the sulfides, selenides, and tellurides of zinc and cadmium, Phys. Rev. 129:1009 (1963).
Yu.Kh. Vekilov and A.P. Rusakov, Elastic constants and lattice dynamics of some AIIBVI compounds, Sov. Phys.-Solid State 13:956 (1971).
R.D. Greenough and S.B. Palmer, The elastic constants and thermal expansion of single-crystal CdTe, J. Phys. D: Appl. Phys. 6:587 (1973).
C. Parfeniuk, F. Weinberg, I.V. Samarasekera, C. Schvezov and L. Li, Measured critical resolved shear stress and calculated temperature and stress fields during growth of CdZnTe, J. Crystal Growth 119:261 (1992).
T. Jasinski, and A.F. Witt, On control of the crystal-melt interface shape during growth in a vertical Bridgman configuration, J. Crystal Growth 71:295 (1985).
J. H. Lienhard, “A Heat Transfer Textbook,” Prentice-Hall, Englewood Cliffs, New Jersey. (1981).
P. Rudolph and Manfred Muhlberg, Basic problems of vertical Bridgman growth of CdTe, Mat. Sci. Eng. B16:8 (1993).
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1994 Springer Science+Business Media New York
About this chapter
Cite this chapter
Lee, T., Moosbrugger, J.C., Carlson, F.M., Larson, D.J. (1994). The Role of Thermal Stress In Vertical Bridgman Growth of CdZnTe Crystals. In: Regel, L.L., Wilcox, W.R. (eds) Materials Processing in High Gravity. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-2520-2_12
Download citation
DOI: https://doi.org/10.1007/978-1-4615-2520-2_12
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-6073-5
Online ISBN: 978-1-4615-2520-2
eBook Packages: Springer Book Archive