Authors

O. Lopatiuk-Tirpak; L. Chernyak; Y. L. Wang; F. Ren; S. J. Pearton; K. Gartsman;Y. Feldman

Comments

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"This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in the linked citation and may be found originally at Applied Physics Letters."

Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

MG-DOPED GAN; IMPURITIES; Physics, Applied

Abstract

Electron-irradiation increase of nonequilibrium carrier lifetime was studied as a function of hole concentration in Mg-doped GaN. Temperature-dependent cathodoluminescence (CL) studies yielded activation energies of 344, 326, 237, and 197 meV for samples with hole concentrations of 2x10(16), 9x10(16), 3x10(18), and 7x10(18) cm(-3), respectively. The systematic decay of activation energy with carrier concentration was found to be consistent with Mg acceptors, indicating the involvement of the latter levels in irradiation-induced lifetime changes.

Journal Title

Applied Physics Letters

Volume

90

Issue/Number

17

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

3

WOS Identifier

WOS:000246568600066

ISSN

0003-6951

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