Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Polyethylene Protective Coating with Anti-Reflective Properties for Silicon Photovoltaic Cells

Version 1 : Received: 26 April 2023 / Approved: 27 April 2023 / Online: 27 April 2023 (03:08:05 CEST)

A peer-reviewed article of this Preprint also exists.

Pociask-Bialy, M. Polyethylene Protective Coating with Anti-Reflective Properties for Silicon Photovoltaic Cells. Materials 2023, 16, 4004. Pociask-Bialy, M. Polyethylene Protective Coating with Anti-Reflective Properties for Silicon Photovoltaic Cells. Materials 2023, 16, 4004.

Abstract

The aim of the study was to find the effect of polyethylene (PE) coatings on the short-circuit current of silicon photovoltaic cells covered with glass, in order to improve the short-circuit current of the cells. Various combinations of PE films (thicknesses ranging from 9 to 23 µm, number of layers ranging from 2 to 6) with glasses (greenhouse, float, optiwhite and acrylic glass) were investigated. The best current gain of 4.05% was achieved for the coating combining a 1.5 mm-thick acrylic glass with 2 × 12 µm-thick PE films. This effect can be related to the formation of an array of micro-wrinkles and micrometer-sized air bubbles with a diameter of 50 to 600 µm in the films, which serve as micro-lenses and enhance light trapping.

Keywords

photovoltaic cells; antireflective coatings; solar glass transmittance; short-circuit current gain

Subject

Chemistry and Materials Science, Materials Science and Technology

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