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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Pandey, Mohnish
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2019Shining Light on Sulfide Perovskites: LaYS 3 Material Properties and Solar Cellscitations
- 2019Shining Light on Sulfide Perovskites: LaYS3 Material Properties and Solar Cellscitations
- 2018Computational Screening of Light-absorbing Materials for Photoelectrochemical Water Splittingcitations
- 2017Sulfide perovskites for solar energy conversion applications: computational screening and synthesis of the selected compound LaYS 3citations
- 2017Band structure engineered layered metals for low-loss plasmonicscitations
- 2017Sulfide perovskites for solar energy conversion applications: computational screening and synthesis of the selected compound LaYS3citations
- 2016Atomically Thin Ordered Alloys of Transition Metal Dichalcogenides: Stability and Band Structurescitations
- 2016Defect-Tolerant Monolayer Transition Metal Dichalcogenidescitations
- 2015Band-gap engineering of functional perovskites through quantum confinement and tunnelingcitations
- 2013Hydroxylation induced stabilization of near-surface rocksalt nanostructure on wurtzite ZnO structurecitations
Places of action
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article
Shining Light on Sulfide Perovskites: LaYS3 Material Properties and Solar Cells
Abstract
The sulfide perovskite LaYS<sub>3</sub> has been recently identified as a promising wide band gap photoabsorber material by computational screening techniques. In this study, we combine experiment and theory to comprehensively characterize LaYS<sub>3</sub> thin films produced by sulfurization of sputter-deposited precursors. An attractive feature of LaYS<sub>3</sub> is its optimal band gap (2.0 eV) for application as a wide band gap photoabsorber in tandem solar energy conversion devices. Promisingly, the LaYS<sub>3</sub> films are photoconductive, with a grain size in excess of 1 μm and comparable recombination time scales to state-of-the-art hybrid halide perovskite absorbers. Although the fabrication of solar cells based on LaYS<sub>3</sub> absorbers is complicated by the high temperature necessary to grow the compound, complete solar cells could be produced in this work by growing LaYS<sub>3</sub> on refractory metal back contacts. These are the first reported solar cells based on a sulfide perovskite absorber. A major reason for their poor performance could be the highly localized trap states observed directly by photoluminescence imaging of LaYS<sub>3</sub>, which may also explain the surprisingly long carrier lifetimes and the low carrier mobility found in this material