Development of a Perovskite Deposition Method Compatible with Large Surfaces Covering: Impact of Electrodeposition Parameters, Substrate Nature and Conversion Route
| Autor: | Lara Perrin, Mirella Al Katrib, Emilie Planes |
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| Přispěvatelé: | Genèse et Usage d'Interfaces Durables pour l'Energie (GUIDE), Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI), Institut de Chimie du CNRS (INC)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Institut de Chimie du CNRS (INC)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Charvin, Nicolas |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | 48th IEEE Photovoltaic Specialists virtual conference (PVSC48) 48th IEEE Photovoltaic Specialists virtual conference (PVSC48), Jun 2021, online, France |
| Popis: | International audience; Hybrid organic/inorganic perovskite solar cells have emerged substantially in the solar community, considered as a remarkable alternative because of its low cost and its efficiency's fascinating rise in the last ten years1. Spin coating is so far the most used technique for elaborating perovskite solar cells, though it presents many constraints such as limited surface coverage, non-homogeneity, and undefined perovskite crystallinity. To avoid all the restrictions mentioned, electrodeposition could be used as a substitute technique2. Herein, electrodeposition of PbO2 was used as a first step for elaborating CH3NH3PbI3 perovskite layers. Then, conversion of PbO2 films into perovskite was conducted either by direct immersion in CH3NH3I solutions, or by conversion into PbI2 before immersion in CH3NH3PbI3. In this work, the impact of different electrodeposition parameters on both PbO2 and perovskite films was studied. The main interfering parameters are the applied voltage, electrodeposition time, the concentration and the pH of the electrolyte. Also, the effect of the substrate on the deposited films was observed by conducting the study on Glass/ITO and Glass/ITO/spincoatedSnO2 substrates. Cyclic voltammetry, chronocoulometry, profilometry, UV-visible spectroscopy, photoluminescence spectroscopy, X-Ray Diffraction and Scanning Electron Microscopy were all used to optimize the deposition parameters. In addition, the impact of each conversion route was evaluated by comparing the efficiencies in a Glass/ITO/SnO2/CH3NH3PbI3/P3HT/C solar cell, having a surface of 0.25 cm2. While the efficiency for directly converted perovskite films is negligible, it increases into 3.3% when using a two-step conversion. |
| Databáze: | OpenAIRE |
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