Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-29T06:56:00.970Z Has data issue: false hasContentIssue false

Modified Vapor Phase Growth of Cadmium Zinc Telluride: A Progress Report

Published online by Cambridge University Press:  10 February 2011

W. P. Trower*
Affiliation:
World Physics Technologies, 1105 Highland Circle, Blacksburg, Virginia 24060
Get access

Abstract

We have completed a series of experiments where we realized Cd(1−x)ZnxTe by modified Vapor Phase Growth in which the CdTe and ZnTe components were separated in the growth ampoule, with their vapors passing through channels and openings designed to mix them stoichiometrically at the growth surface. We have obtained polycrystalline CZT boules 50 mm in diameter and 10 mm high whose structure is strikingly different from that obtained by standard High Pressure Bridgman methods. Our mVPG properties relevant for detector applications include resistivity of∼40 GΩ-cm when voltage is first applied, rising to ∼66 GΩ-cm after ∼20 min when the traps are filled, and electron mobility-lifetimes of∼2 × 10−3 cm2/ν. Here we present some structural and operational characterizations of our mVPG CZT.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Parnham, K.B., Nucl. Instrum. Meth. A377 (1996) 487.Google Scholar
2. Davydov, A.A. and Glebkin, A.A., Izv. ANSSSR Neorg. Mater. 8 (1972) 1730 (in Russian).Google Scholar
3. Glebkin, A.A., Davydov, A.A., and Garba, N.I., Izv. AN SSSR Neorg. Mater. 16 (1980) 28 (in Russian).Google Scholar
4. Cs. Szeles, Shan, Y.Y., Lynn, K.G., and Moodenbaugh, A.R., Phys. Rev. B55 (1997) 6945.Google Scholar