Identifying defect-tolerant semiconductors with high minority-carrier lifetimes: beyond hybrid lead halide perovskites
TLDR
In this paper, the authors propose that defect tolerance emerges from fundamental electronic-structure properties, including the orbital character of the conduction and valence band extrema, the chargecarrier effective masses, and the static dielectric constant.Abstract:
The emergence of methyl-ammonium lead halide (MAPbX3) perovskites motivates the identification of unique properties giving rise to exceptional bulk transport properties, and identifying future materials with similar properties. Here, we propose that this “defect tolerance” emerges from fundamental electronic-structure properties, including the orbital character of the conduction and valence band extrema, the chargecarrier effective masses, and the static dielectric constant. We use MaterialsProject.org searches and detailed electronic-structure calculations to demonstrate these properties in other materials than MAPbX3. This framework of materials discovery may be applied more broadly, to accelerate discovery of new semiconductors based on emerging understanding of recent successes.read more
Citations
More filters
Journal ArticleDOI
Halide Perovskite Photovoltaics: Background, Status, and Future Prospects
TL;DR: The fundamentals, recent research progress, present status, and views on future prospects of perovskite-based photovoltaics, with discussions focused on strategies to improve both intrinsic and extrinsic (environmental) stabilities of high-efficiency devices are described.
Journal ArticleDOI
Genesis, challenges and opportunities for colloidal lead halide perovskite nanocrystals
Quinten A. Akkerman,Quinten A. Akkerman,Gabriele Rainò,Gabriele Rainò,Maksym V. Kovalenko,Maksym V. Kovalenko,Liberato Manna,Liberato Manna +7 more
TL;DR: Lead-halide perovskites have entered the family of colloidal nanocrystals, showing excellent optical properties and easy synthesizability, and insight is provided into their chemical versatility, stability challenges and use in optoelectronics.
Journal ArticleDOI
Promises and challenges of perovskite solar cells
Juan-Pablo Correa-Baena,Juan-Pablo Correa-Baena,Michael Saliba,Tonio Buonassisi,Michael Grätzel,Antonio Abate,Wolfgang Tress,Anders Hagfeldt +7 more
TL;DR: Because photocurrents are near the theoretical maximum, the focus is on efforts to increase open-circuit voltage by means of improving charge-selective contacts and charge carrier lifetimes in perovskites via processes such as ion tailoring.
Journal ArticleDOI
23.6%-efficient monolithic perovskite/silicon tandem solar cells with improved stability
Kevin A. Bush,Axel F. Palmstrom,Zhengshan J. Yu,Mathieu Boccard,Rongrong Cheacharoen,Jonathan P. Mailoa,David P. McMeekin,Robert L. Z. Hoye,Colin D. Bailie,Tomas Leijtens,Ian Marius Peters,Maxmillian C. Minichetti,Nicholas Rolston,Rohit Prasanna,Sarah E. Sofia,Duncan Harwood,Wen Ma,Farhad Moghadam,Henry J. Snaith,Tonio Buonassisi,Zachary C. Holman,Stacey F. Bent,Michael D. McGehee +22 more
TL;DR: In this paper, the authors improved the efficiency of monolithic, two-terminal, 1-cm2 perovskite/silicon tandems to 23.6% by combining an infrared-tuned silicon heterojunction bottom cell with the recently developed caesium formamidinium lead halide pervskite.
References
More filters
Journal ArticleDOI
Generalized Gradient Approximation Made Simple
TL;DR: A simple derivation of a simple GGA is presented, in which all parameters (other than those in LSD) are fundamental constants, and only general features of the detailed construction underlying the Perdew-Wang 1991 (PW91) GGA are invoked.
Journal ArticleDOI
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set.
Georg Kresse,Jürgen Furthmüller +1 more
TL;DR: An efficient scheme for calculating the Kohn-Sham ground state of metallic systems using pseudopotentials and a plane-wave basis set is presented and the application of Pulay's DIIS method to the iterative diagonalization of large matrices will be discussed.
Journal ArticleDOI
Projector augmented-wave method
TL;DR: An approach for electronic structure calculations is described that generalizes both the pseudopotential method and the linear augmented-plane-wave (LAPW) method in a natural way and can be used to treat first-row and transition-metal elements with affordable effort and provides access to the full wave function.
Journal ArticleDOI
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
TL;DR: Two organolead halide perovskite nanocrystals were found to efficiently sensitize TiO(2) for visible-light conversion in photoelectrochemical cells, which exhibit strong band-gap absorptions as semiconductors.