Investigation of surface roughness on etched glass surfaces

Z. Pápa, J. Budai, B. Farkas, Z. Toth

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Roughening the surface of solar cells is a common practice within the photovoltaic industry as it reduces reflectance, and thus enhances the performance of devices. In this work the relationship between reflectance characterized by the haze parameter, surface roughness and optical properties was investigated. To achieve this goal, model samples were prepared by hydrofluoric acid etching of glass for various times and measured by optical microscopy, spectroscopic ellipsometry, scanning electron microscopy, and atomic force microscopy. Our investigation showed that the surface reflectance was decreased not only by the roughening of the surface but also by the modification of the depth profile and lowering of the refractive index of the surface domain of the samples.

Original languageEnglish
Pages (from-to)2903-2906
Number of pages4
JournalThin Solid Films
Volume519
Issue number9
DOIs
Publication statusPublished - Feb 28 2011

Keywords

  • Ellipsometry
  • Graded refractive index
  • Optical properties
  • Surface morphology
  • Texturing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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