| 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
Spray-coated Cu2ZnSnS4 thin films for large-scale photovoltaic applications
Abstract
The kesterite material, Cu2ZnSnS4 (CZTS), has in the preceding ten years been investigated and developed as a new Earth-abundant material for solar cells. The interest in this inorganic semiconductor originates in its optimal energy band gap of approx. 1.5 eV, high absorption coefficient, and the high material abundance and low toxicity of all elements included. The current challenges are related to unavoidable antisite disordering stemming from the chemical similarity of the cations, which causes bulk defects and lowers the open-circuit voltage detrimentally. This, however, did not restrict the “cousin”-material, CuInGaSe2 (CIGS), which is currently one of the main thin-film photovoltaic (PV) technologies on the market. In this work, CZTS thin films have been fabricated by solution-processing, which allows relatively fast and inexpensive deposition when compared to vacuum-processed films. The nanoparticles are synthesized by the hot-injection method by mixing targeted ratios of metal salts with sulfur in diethylene glycol, resulting in a phase-pure CZTS material [1]. Inks are formulated by dispersing the particles in ethanol and water using a suitable dispersing agent. The solvents used allow that alkali metal chloride salts can also be dissolved in controllable amounts, which we have found enhances grain growth in the films during the subsequent annealing step. A Sono-tek spray-coating system with ultrasonic atomization is used. We investigate the effect of ink concentration, and spray-coating conditions, including spray power, flow rate from syringe pump, and time between consecutive spray layers. The films are annealed in a tube furnace, and to avoid decomposing the material into secondary phases, a graphite box is used to enable an overpressure of sulfur and tin-sulfide. The annealed, spray-coated films are characterized by scanning electron microscopy (SEM), optical microscopy, and Dektak profilometry.