scispace - formally typeset
S

Stephan Lany

Researcher at National Renewable Energy Laboratory

Publications -  198
Citations -  15729

Stephan Lany is an academic researcher from National Renewable Energy Laboratory. The author has contributed to research in topics: Band gap & Doping. The author has an hindex of 60, co-authored 183 publications receiving 13399 citations. Previous affiliations of Stephan Lany include Saarland University.

Papers
More filters
Journal ArticleDOI

Dopability, intrinsic conductivity, and nonstoichiometry of transparent conducting oxides.

TL;DR: The theoretical defect model for In(2)O(3) and ZnO finds that intrinsic acceptors have a high Delta H explaining high n-dopability, and the O vacancy V(O) has a metastable shallow state, explaining the paradoxical coexistence of coloration and conductivity.
Journal ArticleDOI

Assessment of correction methods for the band-gap problem and for finite-size effects in supercell defect calculations: Case studies for ZnO and GaAs

TL;DR: In this paper, the authors compared the results of different gap-correction methods and concluded that to date there is no universal scheme for band gap correction in general defect systems, and they turn instead to classification of different types of defect behavior to provide guidelines on how the physically correct situation in an LDA defect calculation can be recovered.
Journal ArticleDOI

Anion vacancies as a source of persistent photoconductivity in II-VI and chalcopyrite semiconductors

TL;DR: In this article, the anion vacancies in II-VI and chalcopyrite semiconductors were identified as a class of intrinsic defects that can exhibit metastable behavior.
Journal ArticleDOI

Correcting density functional theory for accurate predictions of compound enthalpies of formation: Fitted elemental-phase reference energies

TL;DR: In this article, an approach based on GGA $+$ $U$ calculations, including the spin-orbit coupling, which involves fitted elemental-phase reference energies (FERE) and which significantly improves the error cancellation resulting in accurate values for the compound enthalpies of formation was presented.
Journal ArticleDOI

Origins of the p -type nature and cation deficiency in Cu 2 O and related materials

TL;DR: In this article, a first-principle calculation of equilibrium nonstoichiometry and defect stability is proposed to explain why oxides are both $p$-type and naturally cation-deficient, whereas in other oxides (e.g., ZnO and MgO), they lead to localized, nonconductive states.