Analysis of the electrochemical reactions and ions migration for crystalline silicon solar module under high system voltage

Bai, Qiaoqiao; Yang, Hong; Nan, Chenhui; Wang, He; Chen, Zhilei

doi:10.1016/j.solener.2021.07.050

Cited by 5 publications

(2 citation statements)

References 25 publications

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“…Hence, silicon does not exhibit any mobile ionic nature intrinsically as the ions are fixed in the crystal structure of silicon. The ions that we see in the silicon modules or silicon solar cells are the ones that are not intrinsic to the silicon; rather, they are being introduced extrinsically to the silicon modules based on encapsulation and also contamination due to human touch [ 34 , 35 ].On the other end of the spectrum, solid-state electrolyte technologies are designed for the purpose of ion conduction with minimal electronic conductivity, resulting in high N o and very low μ. Note that this can be explained by the working mechanism of batteries, wherein their working depends more on the diffusion of ions rather than the drift of ions.…”

Section: Introductionmentioning

confidence: 99%

Quantifying and Reducing Ion Migration in Metal Halide Perovskites through Control of Mobile Ions

Penukula,

Estrada Torrejon,

Rolston

2023

Molecules

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The presence of intrinsic ion migration in metal halide perovskites (MHPs) is one of the main reasons that perovskite solar cells (PSCs) are not stable under operation. In this work, we quantify the ion migration of PSCs and MHP thin films in terms of mobile ion concentration (No) and ionic mobility (µ) and demonstrate that No has a larger impact on device stability. We study the effect of small alkali metal A-site cation additives (e.g., Na+, K+, and Rb+) on ion migration. We show that the influence of moisture and cation additive on No is less significant than the choice of top electrode in PSCs. We also show that No in PSCs remains constant with an increase in temperature but μ increases with temperature because the activation energy is lower than that of ion formation. This work gives design principles regarding the importance of passivation and the effects of operational conditions on ion migration.

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Section: Introductionmentioning

confidence: 99%

Quantifying and Reducing Ion Migration in Metal Halide Perovskites through Control of Mobile Ions

Penukula,

Estrada Torrejon,

Rolston

2023

Molecules

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“…[8,32,33] Bai et al have developed a model for quantifying sodium ions migration of PV modules, and confirmed the presence of sodium ions in the SiN x :H layer and silicon. [34] Neelkanth et al have found the adhesion strength is decreased at the interface between EVA and solar cells due to the precipitation of sodium ions and ingress of moisture. [35] Hacke et al have reported the accumulation of sodium ions on the front side of solar cells is one of the significant factors for potential-induced degradation-delamination.…”

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confidence: 99%

Potential‐Induced Electrochemical Corrosion in Crystalline Silicon Solar Cells

Hao,

Yang,

Han

et al. 2024

Solar RRL

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In this paper, the electrochemical corrosion of full‐area aluminum back surface field (Al‐BSF) and bifacial passivated emitter and rear cell (PERC) crystalline silicon (c‐Si) solar cells subjected to different potential in sodium chloride (NaCl) solution is systematically investigated. Based on different potential‐induced corrosion, the electrochemical corrosion mechanism of c‐Si solar cells is revealed for the first time. Under zero potential, an important finding is that the silicon beneath silver electrode is corroded and perforated for Al‐BSF cells. This phenomenon is attributed to the interaction between hydroxide ions from galvanic corrosion and electrons from silicon corrosion. For bifacial PERC cells, the pyramidal structure of silicon surface beneath the aluminum finger is observed at zero potential, which is similar to the silicon texturing etched in alkaline environment. Additionally, it is found that silicon corrosion is inhibited when positive or negative potential is applied to the back of Al‐BSF and bifacial PERC cells. Moreover, it is observed the aluminum suffers from more serious corrosion at positive potential than that at zero or negative potential, which is attributed to synthetical results of galvanic corrosion and electrolytic corrosion. This work provides a new insight on the potential‐induced electrochemical corrosion for c‐Si solar cells.This article is protected by copyright. All rights reserved.

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Improving intrinsic stability for perovskite/silicon tandem solar cells

Chen

2022

Sci. China Phys. Mech. Astron.

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Analysis of the electrochemical reactions and ions migration for crystalline silicon solar module under high system voltage

Cited by 5 publications

References 25 publications

Quantifying and Reducing Ion Migration in Metal Halide Perovskites through Control of Mobile Ions

Quantifying and Reducing Ion Migration in Metal Halide Perovskites through Control of Mobile Ions

Potential‐Induced Electrochemical Corrosion in Crystalline Silicon Solar Cells

Improving intrinsic stability for perovskite/silicon tandem solar cells

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