Investigating the Impact of Cracks on Solar Cells Performance: Analysis based on Nonuniform and Uniform Crack Distributions

Mahmoud Dhimish, Vincenzo d'Alessandro, Santolo Daliento

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The article investigates the detrimental effect of nonuniform and uniform crack distributions over a solar cell in terms of open-circuit voltage (Voc), short-circuit current density (Jsc), and output power, the latter under a wide range of irradiance conditions. The experimental procedure to detect the cracks relies on electroluminescence (EL) imaging, which is nondestructive and requires a relatively low amount of time. The Griddler software is adopted to translate the EL-taken image into Voc and Jsc maps. The main findings can be summarized as follows: the nonuniformly and uniformly cracked cells are both jeopardized in terms of output power; the loss corresponding to the cell with nonuniform distribution of cracks is increasingly higher than the uniformly cracked counterpart as the irradiance hitting the cells grows; and all cells affected by nonuniform cracks are severely damaged in terms of fingers and rear busbar, which concur to limit the maximum output current.

Original languageEnglish
Pages (from-to)1684-1693
Number of pages10
JournalIEEE Transactions on Industrial Informatics
Volume18
Issue number3
Early online date11 Jun 2021
DOIs
Publication statusPublished - 1 Mar 2022

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