Investigation of damp heat effects on glass properties for photovoltaic applications

Autor: Jean-Félix Durastanti, Fabien Delaleux, Pierre-Olivier Logerais, Vincent Guiheneuf, Olivier Riou
Rok vydání: 2016
Předmět:
Zdroj: Corrosion Engineering, Science and Technology. 52:170-177
ISSN: 1743-2782
1478-422X
DOI: 10.1080/1478422x.2016.1234803
Popis: Damp heat test was performed on soda-lime glass to characterise functional properties of glass in photovoltaic applications and define the ageing mechanism. In addition to the optical property measurements, SEM-EDX, XPS and FTIR analyses were carried out. The damp heat exposed samples presented an increased transmittance in UV, visible and near-IR ranges namely within (1900–2100 nm). The results were explained by hydration of glass network with heat. An ageing mechanism based on glass corrosion theories is discussed. Molecular water adsorption involves a leaching process of network modifier cations and especially sodium ions. Hydrolysis also occurs in silica network by reacting free molecular water. This phenomenon enhances concentration of hydroxyl groups in glass highlighted by FTIR measurements and promotes formation of silanol groups. A tin side dependence on sodium leaching which acts as a passivating barrier for ionic transport is highlighted which may be taken into consideration for photovo...
Databáze: OpenAIRE