Minority carrier transport in p-type Zn0.9 Mg0.1 O doped with phosphorus

O. Lopatiuk, W. Burdett, L. Chernyak, K. P. Ip, Y. W. Heo, D. P. Norton, S. J. Pearton, B. Hertog, P. P. Chow, A. Osinsky

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Abstract

Minority carrier diffusion length and lifetime in p- Zn0.9 Mg0.1 O doped with phosphorus were obtained from local electron beam irradiation measurements. The irradiation resulted in an increase of up to 25% in minority electron diffusion length from the initial value of ~2.12 μm and in a simultaneous decrease of the peak near-bandedge cathodoluminescence intensity. The observed phenomena are attributed to charging of phosphorus-related deep acceptor level(s), which is consistent with the activation energy of 256±20 meV found for the effect of electron injection in Zn0.9 Mg0.1 O.

Original languageEnglish
Article number012105
Pages (from-to)012105-1-012105-3
JournalApplied Physics Letters
Volume86
Issue number1
DOIs
StatePublished - Jan 2005

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