Direct evidence for Sb as a Zn site impurity in ZnO

Wahl, U.; Correia, J. G.; Mendonça, T.; Decoster, S.
June 2009
Applied Physics Letters;6/29/2009, Vol. 94 Issue 26, p261901
Academic Journal
The lattice location of ion implanted antimony in zinc oxide has been determined by means of β- emission channeling from the radioactive 124Sb isotope. Following 30 keV implantation of 124Sb into a single-crystalline ZnO sample to a fluence of 1×1014 cm-2, the angular-dependent emission rate of β- particles around several crystallographic directions was measured with a position-sensitive Si detector. The majority of Sb was found to occupy Zn sites, with the possible fraction on O sites being at maximum 5%–6%.


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