Preparation of β-CuGaO2 thin films by ion-exchange of β-NaGaO2 film fabricated by a solgel method
| Autor: | T. Fix, J.-L. Rehspringer, S. Roques, A. Slaoui |
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| Přispěvatelé: | Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Fix, Thomas |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Biomaterials
photovoltaics thin films Renewable Energy Sustainability and the Environment photon absorber Ceramics and Composites oxide materials [CHIM.MATE]Chemical Sciences/Material chemistry [SPI.MAT] Engineering Sciences [physics]/Materials Waste Management and Disposal [SPI.MAT]Engineering Sciences [physics]/Materials |
| Zdroj: | Emergent Materials Emergent Materials, 2022, ⟨10.1007/s42247-022-00404-9⟩ |
| ISSN: | 2522-5731 2522-574X |
| DOI: | 10.1007/s42247-022-00404-9⟩ |
| Popis: | International audience; β-CuGaO2 is a wurtzite-derived phase that is promising for ferroelectric and photovoltaic applications. Its bandgap measured in the form of powders is about 1.5 eV and is direct according to density functional theory calculations, making it an appropriate solar light absorber. In this work, we describe our attempts to grow this complex phase by pulsed laser deposition (PLD) that resulted in growing mostly CuGa2O4 on various crystal substrates such as SrTiO3 (STO), Al2O3 (ALO), ZnO and ZrO2:Y (9.5 mol%Y2O3) (YSZ). In contrast, β-CuGaO2 is obtained using ion-exchange of β-NaGaO2 film fabricated with a cost-efficient spin coating by solgel method, on substrates composed of a SiN film on c-Si (001) wafer. The potential of the different films obtained is discussed in view of photovoltaic applications using Surface Photovoltage under white light and Surface Photovoltage spectroscopy. While we show that 2 β-CuGaO2 is a suitable photon absorber we conclude that the fact that the films are discontinuous is detrimental for electronic transport and additional dopants must be inserted in this material to promote its optoelectronic properties and charge carrier transport. |
| Databáze: | OpenAIRE |
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