Kenedy T. Tanko, Sonia R. Raga, Naji Vahedigharehchopogh, Fanny Baumann, Masoud Karimipour, Ramsés Alejandro Miranda-Gamboa, Monica Lira-Cantú
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引用次数: 0
Abstract
Monitoring the stability of perovskite solar cells (PSCs) under operational conditions is crucial for their development. This study integrates maximum power point (MPP) tracking with quasi in-situ electrochemical impedance spectroscopy at successive intervals to elucidate the temporal evolution of degradation mechanisms in PSCs. The gradual losses in photocurrent, photovoltage, and fill factor during MPP tracking were attributed to alterations in recombination processes, kinetic constants, shunt pathways, and series resistances, each manifesting at distinct phases of the PSC stability assessment. Notably, these variations correlated with a progressive increase in ionic density and mobility within the perovskite layer, as evidenced by a shift in the low-frequency ionic response and a 0.13 eV reduction in ionic activation energy. This apparent enhancement in ionic conductivity was more pronounced under illuminance levels below 1000Lx, predominantly affecting shunt resistance and leading to significant implications for indoor photovoltaic performance. The reported methodology offers a straightforward, non-destructive, and effective means to augment conventional PSC stability analyses across various lighting conditions.
Solar RRLPhysics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
12.10
自引率
6.30%
发文量
460
期刊介绍:
Solar RRL, formerly known as Rapid Research Letters, has evolved to embrace a broader and more encompassing format. We publish Research Articles and Reviews covering all facets of solar energy conversion. This includes, but is not limited to, photovoltaics and solar cells (both established and emerging systems), as well as the development, characterization, and optimization of materials and devices. Additionally, we cover topics such as photovoltaic modules and systems, their installation and deployment, photocatalysis, solar fuels, photothermal and photoelectrochemical solar energy conversion, energy distribution, grid issues, and other relevant aspects. Join us in exploring the latest advancements in solar energy conversion research.