Hill climbing hysteresis of perovskite-based solar cells: a maximum power point tracking investigation
| Autor: | Fabrizio Giordano, Shaik M. Zakeeruddin, Norman Pellet, Giuliano Gregori, M. Ibrahim Dar, Joachim Maier, Michael Grätzel |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Maximum power principle 02 engineering and technology 010402 general chemistry 01 natural sciences 7. Clean energy Maximum power point tracking law.invention Control theory law Solar cell Crystalline silicon Electrical and Electronic Engineering Perovskite (structure) Renewable Energy Sustainability and the Environment business.industry Photovoltaic system Energy conversion efficiency Electrical engineering 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Electronic Optical and Magnetic Materials Hysteresis 13. Climate action 0210 nano-technology business |
| Zdroj: | Progress in Photovoltaics: Research and Applications. 25:942-950 |
| ISSN: | 1062-7995 |
| Popis: | The surge of the power conversion efficiency of metal halide lead perovskite solar cells comes with concerns, such as the long-term ecotoxicity of lead compounds, their sensitivity toward moisture and oxygen, or the scarcity of some of their components. Most perovskite solar cells still suffer from serious stability problems when measured under real working conditions (maximum power point tracking at 60°C). In the long run, stability will certainly decide on the fate of CH3NH3PbI3 and related lead perovskites for their use in photovoltaic modules. Herein, we show an effective and inexpensive strategy to perform ageing of perovskite solar cells under maximum power point tracking. For the first time, we analyze the issue of power extraction from solar cells exhibiting hysteresis. We show that a standard tracking algorithm such as perturb and observe fails to converge to the maximum power point of the solar cell if it exhibits j(V) hysteresis, and we present an effective strategy to stabilize the algorithm. We show that enforcing oscillations in forward bias can boost the mean power output of some perovskite solar cells by more than 10%, in contrast to a reference crystalline silicon solar cell. Copyright © 2017 John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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