title: Microscopic origins of electron and hole stability in ZnO.
abstract: We present a fundamental method to assess the doping limits of hetero-polar materials; applied to the case of ZnO, we show clearly that electrons are stable and holes are unstable under the limits of thermodynamic control.
authors.affiliation: University College London, Kathleen Lonsdale Materials Chemistry, Department of Chemistry, 20 Gordon Street, London WC1H 0AJ, UK. c.r.a.catlow@ucl.ac.uk
authors.forename: C Richard A
authors.initials: CR
authors.lastname: Catlow
authors.forename: Alexey A
authors.initials: AA
authors.lastname: Sokol
authors.forename: Aron
authors.initials: A
authors.lastname: Walsh