Wetting coatings on TiO2 based glasses for photovoltaic application and contact angle measurements

  • 1 Institute of Metal Science, Equipment, and Technologies ―Acad. A. Balevski‖ with Center for Hydro- and Aerodynamics at the Bulgarian Academy of Sciences, Sofia, Bulgaria
  • 2 Faculty of Chemistry and Pharmacy, Department Chemical and Pharmaceutical Engineering, Sofia University, Bulgaria
  • 3 Faculty of Chemistry and Pharmacy, Department Physical Chemistry, Sofia


They have been conducted on ellipsometry and contact angles. The contact angles of a surface coating on glasses applied in photovoltaics were measured. This study used a DSA 100-Expert (Krüss GmbH, Germany) to measure contact angles on glass substrates. Contact angles were measured using the DSA 100-Expert tilt table accessory to identify both advancing and receding contact angles. A drop of deionized water is deposited on the glass substrate and then the table is tilted at a constant rate of 5 degrees per minute, to a tilt angle of 90 degrees.



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