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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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Sánchez, Yudania
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2023Stability of Cu2ZnSnSe4/CdS heterojunction based solar cells under soft post-deposition thermal treatmentscitations
- 2022A new approach for alkali incorporation in Cu2ZnSnS4 solar cells
- 2021The effect of annealing temperature on Cu<sub>2</sub>ZnGeSe<sub>4</sub> thin films and solar cells grown on transparent substratescitations
- 2021The effect of annealing temperature on Cu2ZnGeSe4 thin films and solar cells grown on transparent substratescitations
- 2019Enhanced hetero‐junction quality and performance of kesterite solar cells by aluminum hydroxide nanolayers and efficiency limitation revealed by atomic‐resolution scanning transmission electron microscopycitations
- 2019Evaluation of AA-CVD deposited phase pure polymorphs of SnS for thin films solar cellscitations
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article
The effect of annealing temperature on Cu<sub>2</sub>ZnGeSe<sub>4</sub> thin films and solar cells grown on transparent substrates
Abstract
<jats:title>Abstract</jats:title><jats:p>Semi-transparent solar cells are the next step for photovoltaics into our daily life. Over the last years, kesterite-type material has attracted a special attention to be used as an absorber in thin-film solar cells because of its low toxicity and earth abundant constituents. Here, Cu<jats:sub>2</jats:sub>ZnGeSe<jats:sub>4</jats:sub> (CZGSe) thin films are grown by co-evaporation and subsequent annealing at a maximum temperature of 480 °C or 525 °C onto Mo/V<jats:sub>2</jats:sub>O<jats:sub>5</jats:sub>/FTO/glass stacks. The goal of this work is to investigate the influence of the annealing temperature on the composition, morphology, vibrational properties, and transmittance of CZGSe layers, the formation of secondary phases, and distribution of elements within the absorber layer as well as on the optoelectronic properties of the corresponding solar cell devices. Raising the annealing temperature to 525 °C leads to a more uniform distribution of Cu, Zn, Ge and Se throughout the absorber layer, a reduction of the presence of the GeSe<jats:sub>2</jats:sub> secondary phase, which is mainly detected at 480 °C, a larger grain size and the formation of a thicker MoSe<jats:sub>2</jats:sub> layer at the CZGSe/back contact interface. The strategy of increasing the annealing temperature allows for improved <jats:italic>J</jats:italic>–<jats:italic>V</jats:italic> characteristics and higher spectral response resulting in an enhanced device performance of 5.3% compared to 4.2% when using 525 °C and 480 °C, respectively. Both absorber layers present an optical band gap energy of 1.47 eV. Furthermore, higher annealing temperature has beneficial effect to the CZGSe-based devices without losses in total transmitted light because of the higher diffuse transmittance. This work shows first promising semi-transparent CZGSe-based solar cells possibly open up new routes of applications.</jats:p>