Solar cell degradation caused by glass superstrate corrosion

•Atmospheric water vapor can corrode glass superstrate of a solar cell.•The optical transmittance of hydrated SLG superstrates decreases.•Alkali free borosilicate glass superstrate is better for photovoltaic application. Hydration of borosilicate and soda-lime glass samples was performed to examine...

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Bibliographic Details
Published in:Solar energy 2019-07, Vol.187, p.82-84
Main Authors: Kudriavtsev, Yu, Hernandez, A.G., Asomoza, R.
Format: Article
Language:English
Subjects:
Borosilicate glass
Corrosion
Degradation
Glass substrates
Glass superstrate
High temperature
Hydration
Lime
Optical transmittance
Photovoltaic cells
Soda-lime glass
Solar cells
Solar energy
Thin film solar cell
Thin films
Transmittance
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Summary:•Atmospheric water vapor can corrode glass superstrate of a solar cell.•The optical transmittance of hydrated SLG superstrates decreases.•Alkali free borosilicate glass superstrate is better for photovoltaic application. Hydration of borosilicate and soda-lime glass samples was performed to examine their stability in ambient atmosphere with a high humidity and at elevated temperatures. Hydration at 88 °C for two months resulted in a remarkable degradation in the transmittance of the soda-lime glass sample. The borosilicate glass demonstrated an insignificant decrease in its transmittance. We have concluded that the soda-lime glass substrates cannot be used as transparent superstrates for thin-film solar cells.
ISSN:0038-092X
1471-1257
DOI:10.1016/j.solener.2019.05.035