COMPARATIVE ANALYSIS OF POTENTIAL-INDUCED DEGRADATION (PID) MECHANISMS IN PEROVSKITE SOLAR MODULES, AND SILICON SOLAR CELLS WITH DISTINCT GLASS ENCAPSULANTS

Date

2025-1-6

Author

Durusoy, Beyza

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Potential-induced degradation is one critical issue concerning long-term performance and reliability in photovoltaic modules, causing significant power losses in silicon and perovskite solar technologies. This study examines PID shunting mechanisms in crystalline silicon solar modules and investigates how glass encapsulants and material characteristics reduce degradation. Additionally, we aim to adapt standard PID testing procedures for perovskite solar modules, considering their sensitive nature. In this study, we utilized soda-lime-silicate (SLS) glass for silicon solar modules, applying chemical tempering treatments with varying durations. We observed the influence of chemically strengthened soda-lime silicate glass, which mitigates sodium ion migration, a main factor for PID shunting. Our results prove that chemical tempering decreases migrating sodium ions and significantly increases PID resistance, with minimal degradation in electrical parameters like fill factor (FF) and maximum power output (Pmax) compared to traditional SLS glass. The study also discusses the applicability of standard PID testing protocols to perovskite solar modules, showing that perovskite cells exhibit unique degradation behaviors due to their intrinsic ionic nature. Positive voltage bias initially improves performance, while negative bias leads to pronounced degradation, highlighting perovskite materials’ sensitivity to voltage polarity. Investigating precursor composition’s impact on PID reveals that certain formulations enhance stability under PID stress. The work emphasizes the need for tailored mitigation strategies, including advanced encapsulation techniques and standardized PID tests for perovskite technologies. This will enable the development of more efficient and robust PV modules, facilitating the commercialization of next-generation solar technologies in the global transition to renewable energy.

Subject Keywords

potential induced degradation, chemical tempering, SLS glass, anti-PID, perovskite solar cells

URI

https://hdl.handle.net/11511/113489

Collections

Graduate School of Natural and Applied Sciences, Thesis