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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.
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Dopability, intrinsic conductivity, and nonstoichiometry of transparent conducting oxides.
Stephan Lany,Alex Zunger +1 more
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.
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Assessment of correction methods for the band-gap problem and for finite-size effects in supercell defect calculations: Case studies for ZnO and GaAs
Stephan Lany,Alex Zunger +1 more
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.
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Anion vacancies as a source of persistent photoconductivity in II-VI and chalcopyrite semiconductors
Stephan Lany,Alex Zunger +1 more
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.
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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.
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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.