| 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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Engberg, Sara Lena Josefin
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2023Advances in the one-step synthesis of 2D and 3D sulfide materials grown by pulsed laser deposition assisted by a sulfur thermal crackercitations
- 2022Silver-substituted (Ag1-xCux)2ZnSnS4 solar cells from aprotic molecular inkscitations
- 2022Tuning the band gap of CdS in CZTS/CdS solar cells
- 2022The effect of soft-annealing on sputtered Cu2ZnSnS4 thin-film solar cellscitations
- 2022A facile strategy for the growth of high-quality tungsten disulfide crystals mediated by oxygen-deficient oxide precursorscitations
- 2022Solution-processed CZTS and its n-layers
- 2020Energy band alignment at the heterointerface between CdS and Ag-alloyed CZTScitations
- 2020Energy band alignment at the heterointerface between CdS and Ag-alloyed CZTScitations
- 2020Monolithic thin-film chalcogenide–silicon tandem solar cells enabled by a diffusion barriercitations
- 2020Persistent Double-Layer Formation in Kesterite Solar Cells: A Critical Reviewcitations
- 2020Persistent Double-Layer Formation in Kesterite Solar Cells: A Critical Reviewcitations
- 2019Thin films of CZTS and CZTO for solar cells produced by pulsed laser deposition
- 2019Thin films of CZTS and CZTO for solar cells produced by pulsed laser deposition
- 2018Liquid phase assisted grain growth in Cu2ZnSnS4 nanoparticle thin films by alkali element incorporationcitations
- 2017Investigation of Cu 2 ZnSnS 4 nanoparticles for thin-film solar cell applicationscitations
- 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
- 2017Spray-coated ligand-free Cu2ZnSnS4 nanoparticle thin films
- 2017Investigation of Cu2ZnSnS4 nanoparticles for thin-film solar cell applicationscitations
- 2017Spray-coated Cu2ZnSnS4 thin films for large-scale photovoltaic applications
- 2016High frequency pulse anodising of magnetron sputtered Al–Zr and Al–Ti Coatingscitations
- 2016Cu2ZnSnS4 Nanoparticle Absorber Layers for Thin-Film Solar Cells
- 2016Synthesis of ligand-free CZTS nanoparticles via a facile hot injection routecitations
- 2015Optimized Packing Density of Large CZTS Nanoparticles Synthesized by Hot-injection for Thin Film Solar Cells.
- 2015Large CZTS Nanoparticles Synthesized by Hot-Injection for Thin Film Solar Cells.
- 2015Synthesis of large CZTSe nanoparticles through a two-step hot-injection methodcitations
- 2014Appearance of anodised aluminium: Effect of alloy composition and prior surface finishcitations
- 2014Annealing in sulfur of CZTS nanoparticles deposited through doctor blading
- 2014Study of Grain Growth of CZTS Nanoparticles Annealed in Sulfur Atmosphere
Places of action
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document
Thin films of CZTS and CZTO for solar cells produced by pulsed laser deposition
Abstract
Silicon solar cells are presently dominant for harvesting solar energy because of the well-known production technology, but silicon has a low absorption such that a cell requires a layer of up to 200 µm silicon for sufficient light absorption. During the latest decades new thin-film semiconductor cells with a four-component absorber, e.g. CZTS (Cu2ZnSnS4), have emerged as promising candidates for solar energy. This material consists of abundant and non-toxic elements. The material has a direct absorption and the absorber works perfectly with a thickness of 1-2 µm. Films of this four-component material are difficult to make by pulsed laser deposition (PLD), because of the different physical properties of the elements in the target both for one-phase targets of CZTS and for composite targets of sulfides. One further complication is that the stoichiometry of the most efficient absorbers are different from the nominal composition mentioned above, i.e. the film has to be Cu-poor and Zn rich. After the production at room temperature the (amorphous) film has to be annealed in a furnace at a temperature up to 600 C with a sulfur atmosphere in order to form CZTS.In addition, Sn has to be added during the annealing as well. At low fluence it was possible to obtain a Cu-poor composition for CZTS such that a cell of more than 5 % efficiency could be produced [1]. Also the usual problem for PLD, large droplets, could be reduced at low fluence. <br/>In order to avoid evaporation of the volatile SnS from the composite target during deposition we have replaced the sulfide target with a target of copper zinc tin oxide (CZTO). The SnO binary compound in CZTOis much less volatile than SnS, such that the final content of Sn in the deposited film can be controlled much better. During the annealing in the sulfur atmosphere the oxide in the film is completely converted to sulfide. A general trend is that the Cu/Sn ratio of the film decreases strongly with decreasing fluence for the oxide film similar to the behavior of the sulfide film previously reported [2]. The underlying physics of the behavior of the film composition as a function of laser fluence for a number of chalcogenides will be discussed in terms of the physical properties of the materials, in particular the cohesive energy. With the oxide target we has obtained the world record, 5.4 % , in efficiency for solar cell absorbers of CZTS produced by PLD<br/>