Changing vacancy balance in ZnO by tuning synthesis between zinc/oxygen lean conditions

Vacancy defect distributions in bulk ZnO crystals

We have used positron annihilation spectroscopy to study vacancy defects in ZnO single crystals grown by various methods from both commercial and academic sources. The combination of positron lifetime and Doppler broadening techniques with theoretical calculations provides the means to deduce both the identities and the concentrations of the vacancies. The annihilation characteristics of the Zn...

Biocatalytic synthesis of acrylates in supercritical fluids: tuning enzyme activity by changing pressure.

Supercritical fluids are a unique class of nonaqueous media in which biocatalytic reactions can occur. The physical properties of supercritical fluids, which include gas-like diffusivities and liquid-like densities, can be predictably controlled with changing pressure. This paper describes how adjustment of pressure, with the subsequent predictable changes of the dielectric constant and Hildebr...

Vacancy defect and defect cluster energetics in ion-implanted ZnO

Rights: © 2010 American Physical Society (APS). This is the accepted version of the following article: Dong, Yufeng & Tuomisto, Filip & Svensson, B. G. & Kuznetsov, A. Yu. & Brillson, Leonard J. 2010. Vacancy defect and defect cluster energetics in ion-implanted ZnO. Physical Review B. Volume 81, Issue 8. 081201/1-4. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.81.081201, which has been publ...

Zinc-Vacancy–Donor Complex: A Crucial Compensating Acceptor in ZnO

First-principles study of vacancy-assisted impurity diffusion in ZnO

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