| People | Locations | Statistics |
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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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Lewis, Dj
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (30/30 displayed)
- 2024Effect of Graphene Oxide and Carbon Black on the Thermoelectric Performance of Niobium doped Strontium Titanatecitations
- 2024Electronic transport and the thermoelectric properties of donor-doped SrTiO3citations
- 2023Environment effects upon electrodeposition of thin film copper oxide nanomaterialscitations
- 2023A Low‐Temperature Synthetic Route Toward a High‐Entropy 2D Hexernary Transition Metal Dichalcogenide for Hydrogen Evolution Electrocatalysiscitations
- 2023Precursor-Led Grain Boundary Engineering for Superior Thermoelectric Performance in Niobium Strontium Titanatecitations
- 2023Enhanced Thermoelectric Performance of Tin(II) Sulfide Thin Films Prepared by Aerosol Assisted Chemical Vapor Depositioncitations
- 2022Tunable structural, morphological and optical properties of undoped, Mn, Ni and Ag-doped CuInS2 thin films prepared by AACVDcitations
- 2022Investigating the effect of steric hindrance within CdS single-source precursors on the material properties of AACVD and spin coat-deposited CdS thin filmscitations
- 2021Direct Synthesis of Nanostructured Silver Antimony Sulfide Powders from Metal Xanthate Precursorscitations
- 2021High Performance Nanostructured MoS2 Electrodes with Spontaneous Ultra-Low Gold Loading for Hydrogen Evolutioncitations
- 2021Synthesis, X-ray single-crystal structural characterization and thermal analysis of bis(O-alkylxanthato)Cd(II) and bis(O-alkylxanthato)Zn(II) complexes used as precursors for cadmium and zinc sulfide thin filmscitations
- 2021Nanoscale Chevrel Phase Mo6S8 Prepared by a Molecular Precursor Approach for Highly Efficient Electrocatalysis of the Hydrogen Evolution Reaction in Acidic Media
- 2021Molecular Precursor Route to Bournonite (CuPbSbS3) Thin Films and Powderscitations
- 2021Structural investigations of α-MnS nanocrystals and thin films synthesised from manganese(II) xanthates by hot injection, solvent-less thermolysis and doctor blade routes.citations
- 2021Intrinsic Effects of Thickness, Surface Chemistry and Electroactive Area on Nanostructured MoS2 Electrodes with Superior Stability for Hydrogen Evolutioncitations
- 2021Synthesis of molybdenum-doped rhenium disulfide alloy using aerosol-assisted chemical vapour depositioncitations
- 2021Testing the Efficacy of the Synthesis of Iron Antimony Sulfide Powders from Single Source Precursorscitations
- 2020Heterometallic 3d-4f complexes as air-stable molecular pre-cursors in low temperature syntheses of stoichiometric rare-earth orthoferrite powderscitations
- 2019Air-Stable Methylammonium Lead Iodide Perovskite Thin Films Fabricated via Aerosol-Assisted Chemical Vapor Deposition from a Pseudohalide Pb(SCN)2 Precursorcitations
- 2019Formation and healing of defects in atomically thin GaSe and InSecitations
- 2019Synthesis of Iron Sulfide Thin Films and Powders from New Xanthate Precursorscitations
- 2019Chemical vapor deposition of tin sulfide from diorganotin(IV) dixanthatescitations
- 2019A molecular precursor route to quaternary chalcogenide CFTS (Cu2FeSnS4) powders as potential solar absorber materialscitations
- 2019Accessing γ-Ga2S3 by solventless thermolysis of gallium xanthates: A low temperature limit for crystalline products?citations
- 2018Synthesis of Nanostructured Powders and Thin Films of Iron Sulfide from Molecular Precursorscitations
- 2018Ambient-Air-Stable Inorganic Cs2SnI6 Double Perovskite Thin Films via Aerosol-Assisted Chemical Vapour Depositioncitations
- 2017A Single Source Precursor for Tungsten Dichalcogenide Thin Films: Mo1-xWxS2 (0 ≤ x ≤ 1) Alloys by Aerosol-Assisted Chemical Vapor Deposition (AACVD)citations
- 2017Solution Processing of Two-Dimensional Black Phosphoruscitations
- 2016Chemical Vapour Deposition of Rhenium Disulfide and Rhenium-Doped Molybdenum Disulfide Thin Films Using Single-Source Precursorscitations
- 2016Synthesis, Properties, and Applications of Transition Metal-Doped Layered Transition Metal Dichalcogenidescitations
Places of action
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article
Ambient-Air-Stable Inorganic Cs2SnI6 Double Perovskite Thin Films via Aerosol-Assisted Chemical Vapour Deposition
Abstract
Air-stable caesium tin iodide double perovskite (Cs2SnI6) thin films have been fabricated via aerosol-assisted chemical vapour deposition (AACVD). We compare the properties of the double perovskite films made using AACVD with those made by the widely used spin-coating method. Films with purer crystalline phase (less CsI impurity) and far better stability in ambient air can be obtained by AACVD compared with spin coating. The AACVD-grown Cs2SnI6 films retain high phase purity for at least ~100 days aging in air with negligible CsI impurities detected over this time, as determined by X-ray diffraction. The films exhibit an optical band gap energy (Eg) of ca. 1.3 eV and a homogeneous morphology with the expected nominal stoichiometry within error, as probed by energy-dispersive X-ray spectroscopy. Overall, the characteristics of the Cs2SnI6 films are highly process-dependent, e.g. they are influenced by the presence of hydroiodic acid (HI) in the precursor solution. Without HI addition, an iodine-deficient film with more CsI is produced, which also exhibits a larger Eg of ca. 1.6 eV. In addition to bulk properties, we utilise X-ray photoelectron spectroscopy (XPS) to scrutinise the surface characteristics in detail. We find excess Sn and I located at the surfaces. This can be attributed to the presence of SnI4 from the deposition precursor vapour. Furthermore, following aging in air, an increase in CsI impurity for the AACVD (+HI)-grown film is observed, along with a reduction in SnI4 at the surfaces. Near-ambient pressure XPS (NAP-XPS) is used to examine the surface stability of AACVD (+HI)-grown films on exposure to O2 and H2O. No enhancement in the amount CsI impurity is observed after both H2O vapour (9 mbar) and O2 (5 mbar) exposure. Nevertheless, the concentrations of tin and iodine change after exposure, suggesting that SnI4 protects Cs2SnI6 from degradation. This passivation effect of SnI4 onCs2SnI6 surfaces is proposed to explain the additional stability of Cs2SnI6 fabricated via AACVD.