Near-unity haze by aluminum induced glass texturing: structural evolution of Al/glass interface and its impact on texturing

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10.1364-OME.7.003051.pdf

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2017-09-01

Author

Ünal, Mustafa
Canlı, Sedat
Turan, Raşit

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Aluminum induced texturing (AIT) is an effective method to enhance light trapping in thin film solar cells through texturing the surface of the glass substrate. The topography of the textured glass is closely related to the processes that occur at the Al/glass interface during thermal annealing, which is commonly carried out at temperatures above 500 degrees C. The annealing temperature significantly influences the redox reaction between Al and SiO2, and thus the resultant surface texture. In this study, the effect of annealing temperature on the AIT process is investigated in order to elucidate on the evolution of the metallic Al over-layer into the final Al2O3 - c-Si mixture. The structural and compositional changes at the Al/glass interface are compared for samples annealed at varying temperatures. The influence of annealing temperature on the final morphology of the glass surface is also discussed, along with its optical transmittance. (C) 2017 Optical Society of America

Subject Keywords

Thin-Film, Induced Crystallization, Silicon, Nucleation, Surface, Mechanism, Growth

URI

https://hdl.handle.net/11511/36703

Journal

OPTICAL MATERIALS EXPRESS

DOI

https://doi.org/10.1364/ome.7.003051

Collections

Center for Solar Energy Research and Applications (GÜNAM), Article

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Citation Formats

M. Ünal, S. Canlı, and R. Turan, “Near-unity haze by aluminum induced glass texturing: structural evolution of Al/glass interface and its impact on texturing,” OPTICAL MATERIALS EXPRESS, pp. 3051–3064, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36703.