PRODUCTION AND CHARACTERIZATION OF AMORPHOUS SILICON THIN-FILM SOLAR CELLS ON FLEXIBLE SUBSTRATES WITH LASER TEXTURING

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2022-3-10

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DEMİRCİOĞLU, ZEYNEP

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Thin-film photovoltaic (PV) panels are promising technologies in the PV market due to their low production costs and other advantages such as temperature resistance and diffuse radiation performances. Thin-film photovoltaic panels can be produced on not only rigid substrates but also on flexible substrates. Flexible solar cells have several advantages: flexibility, lightweight, mobility, and easy transport specifications. The scope of the research presented is to study low-temperature deposition and optimization of hydrogenated amorphous silicon (a-Si:H) deposition for flexible solar cells. The aim of this study is to optimize the flexible solar cell process by investigating the effects of deposition parameters on a-Si:H thin film properties and cells, to obtain surface texturing on transparent conductive oxide by a novel texture, which is done by direct laser writing, to scale-up from cell to monolithically series-connected flexible solar module. Different flexible substrates are compared for flexible solar cell production. A novel texturing of aluminum-doped zinc oxide (AZO) films is proposed and deposited on flexible substrates for photovoltaic applications. A comparative study of the effects of different laser vi wavelengths on texturing/patterning of AZO is discussed. Single-junction flexible thin-film solar cell production methods and efficiency enhancements are developed and applied. Thin-film deposition optimization in CVD chambers and laser processes is optimized during this study.

Subject Keywords

Flexible Solar Cell, Amorphous Silicon, PECVD, Sputter, Laser Process

URI

https://hdl.handle.net/11511/96758

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

Z. DEMİRCİOĞLU, “PRODUCTION AND CHARACTERIZATION OF AMORPHOUS SILICON THIN-FILM SOLAR CELLS ON FLEXIBLE SUBSTRATES WITH LASER TEXTURING,” Ph.D. - Doctoral Program, Middle East Technical University, 2022.