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Multiple Donors in Zinc Oxide Substrates

Published online by Cambridge University Press:  01 February 2011

K. Thonke ,
N. Kerwien ,
A. Wysmolek ,
M. Potemski ,
A. Waag  and
R. Sauer
K. Thonke
Affiliation:
Abt. Halbleiterphysik, Universität Ulm, Albert-Einstein-Allee 45, D 89069 Ulm (Germany)
N. Kerwien
Affiliation:
Abt. Halbleiterphysik, Universität Ulm, Albert-Einstein-Allee 45, D 89069 Ulm (Germany)
A. Wysmolek
Affiliation:
Grenoble High Magnetic Field Laboratory, 25 Av. de Martyrs, F 38042 Grenoble (France) Institute of Experimental Physics, 00-681 Hoza 69, Warsaw (Poland)
M. Potemski
Affiliation:
Grenoble High Magnetic Field Laboratory, 25 Av. de Martyrs, F 38042 Grenoble (France)
A. Waag
Affiliation:
Abt. Halbleiterphysik, Universität Ulm, Albert-Einstein-Allee 45, D 89069 Ulm (Germany)
R. Sauer
Affiliation:
Abt. Halbleiterphysik, Universität Ulm, Albert-Einstein-Allee 45, D 89069 Ulm (Germany)
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Abstract

We investigate by photoluminescence (PL) nominally undoped, commercially available Zinc Oxide substrates (from Eagle Picher) grown by seeded chemical vapor transport technique in order to identify residual donors and acceptors. In low temperature PL spectra the dominant emission comes from the decay of bound exciton lines at around 3.36 eV. Zeeman measurements allow the identification of the two strongest lines and some weaker lines in-between as donorrelated. From the associated two-electron satellite lines binding energies of the major donors of 48 meV and 55 meV, respectively, can be deduced.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 719: Symposium F – Defect- and Impurity-Engineered Semiconductors and Devices III , 2002 , F2.4
Copyright
Copyright © Materials Research Society 2002

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