| 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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Crovetto, Andrea
Helmholtz-Zentrum Berlin für Materialien und Energie
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (38/38 displayed)
- 2023Is Cu3-xP a Semiconductor, a Metal, or a Semimetal?citations
- 2023Is Cu 3-x P a Semiconductor, a Metal, or a Semimetal?citations
- 2022An open-access database and analysis tool for perovskite solar cells based on the FAIR data principlescitations
- 2022Crystallize It before It diffusescitations
- 2022Prediction and realisation of high mobility and degenerate p-type conductivity in CaCuP thin films
- 2022Prediction and realisation of high mobility and degenerate p-type conductivity in CaCuP thin films.
- 2021An open-access database and analysis tool for perovskite solar cells based on the FAIR data principlescitations
- 2021Semitransparent Selenium Solar Cells as a Top Cell for Tandem Photovoltaicscitations
- 2020Monolithic thin-film chalcogenide–silicon tandem solar cells enabled by a diffusion barriercitations
- 2020Parallel evaluation of the BiI3, BiOI, and Ag3BiI6 layered photoabsorberscitations
- 2020Parallel evaluation of the BiI 3 , BiOI, and Ag 3 BiI 6 layered photoabsorberscitations
- 2019Monolithic Thin-Film Chalcogenide-Silicon Tandem Solar Cells Enabled by a Diffusion Barrier
- 2019Shining Light on Sulfide Perovskites: LaYS 3 Material Properties and Solar Cellscitations
- 2019Shining Light on Sulfide Perovskites: LaYS3 Material Properties and Solar Cellscitations
- 2018Non-destructive Thickness Mapping of Wafer-Scale Hexagonal Boron Nitride Down to a Monolayercitations
- 2017Sulfide perovskites for solar energy conversion applications: computational screening and synthesis of the selected compound LaYS 3citations
- 2017Investigation of Cu 2 ZnSnS 4 nanoparticles for thin-film solar cell applicationscitations
- 2017How the relative permittivity of solar cell materials influences solar cell performancecitations
- 2017The effect of dopants on grain growth and PL in CZTS nanoparticle thin films for solar cell applications
- 2017Na-assisted grain growth in CZTS nanoparticle thin films for solar cell applications
- 2017Temperature dependent photoreflectance study of Cu2SnS3 thin films produced by pulsed laser depositioncitations
- 2017Investigation of Cu2ZnSnS4 nanoparticles for thin-film solar cell applicationscitations
- 2017Sulfide perovskites for solar energy conversion applications: computational screening and synthesis of the selected compound LaYS3citations
- 2016Cu2ZnSnS4 solar cells: Physics and technology by alternative tracks
- 2016Behind the Nature of Titanium Oxide Excellent Surface Passivation and Carrier Selectivity of c-Si
- 2016Semiconductor band alignment from first principles: a new nonequilibrium Green's function method applied to the CZTSe/CdS interface for photovoltaicscitations
- 2016Synthesis of ligand-free CZTS nanoparticles via a facile hot injection routecitations
- 2015Optical properties and surface characterization of pulsed laser-deposited Cu2ZnSnS4 by spectroscopic ellipsometrycitations
- 2015Chalcogenide compounds made by pulsed laser deposition at 355 and 248 nm
- 2015Morphology of Copper Tin Sulfide Films Grown by Pulsed Laser Deposition at 248 and 355 nm
- 2015Optical properties and surface characterization of pulsed laser-deposited Cu 2 ZnSnS 4 by spectroscopic ellipsometrycitations
- 2015ZnS top layer for enhancement of the crystallinity of CZTS absorber during the annealingcitations
- 2014Electrical characterization of sputtered ZnO:Al films with microprobe technique
- 2014Optical properties and secondary phase identification in PLD-grown Cu 2 ZnSnS 4 for thin-film photovoltaics
- 2014Optical properties and secondary phase identification in PLD-grown Cu2ZnSnS4 for thin-film photovoltaics
- 2014Annealing in sulfur of CZTS nanoparticles deposited through doctor blading
- 2014Study of Grain Growth of CZTS Nanoparticles Annealed in Sulfur Atmosphere
- 2014Pulsed laser deposition of Cu-Sn-S for thin film solar cells
Places of action
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document
Study of Grain Growth of CZTS Nanoparticles Annealed in Sulfur Atmosphere
Abstract
The kesterite material, Cu<sub>2</sub>ZnSn(S<sub>x</sub>Se<sub>1-x</sub>)<sub>4 (</sub>CZTS), is very promising as absorber material in future thin filmsolar cells. The elements are abundant, the material has a high absorption coefficient, and the pure sulfideCZTS is non-toxic. These properties make CZTS a potential candidate also for large-scale applications. Here,solution processing allows for comparatively fast and inexpensive fabrication and solution processing alsoholds the record efficiency in the kesterite family, however for the selenized compound. The current challenges are, (1) that the high carbon content in nanoparticle thin films is one of the main limitations for this approach, and (2) that grain boundaries and defects are believed to be a site for recombination that limits the efficiency. Annealing in vacuum and/or a nitrogen atmosphere facilitates grain growth and improves the electronic properties. Conventionally selenization (annealing in selenium) shows the best results, however sulfurization (annealing in sulfur) has the advantage of leading to a non-toxic material. In this work, nanocrystals of CZTS with a targeted Cu-poor/Zn-rich composition are synthesized through a hot-injection method with oleylamine as the solvent. The nanocrystal inks are deposited through doctor blading in octanethiol, and annealed in a vacuum furnace using a graphite box with sulfur. The surface morphology and thus grain growth are studied for various annealing conditions in a 10-mbar nitrogen atmosphere with a varying amount of sulfur.The films are characterized with scanning electron microscopy (SEM), and an example before and after annealing is displayed in Fig. 1 (a) and (b), respectively. Compositional changes are monitored by energy dispersive X-ray spectroscopy (EDX) and the crystallinity by X-ray diffraction (XRD).A photovoltaic device of the structure soda lime glass (SLG)/Mo/CZTSSe/CdS/ZnO:Al/Ag has been built, and our preliminary results show a power conversion efficiency of 1.41% for the nanoparticles annealed inselenium.