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

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


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Aluminum induced texturing (AIT) is one of the most promising texturing methods, which can be applied on glass substrates for solar cell applications. Combination of different dimensional structures exhibits the opportunity to achieve enhanced light trapping schemes. Here in this study, float glass and macro textured sandy and prism glasses went through Aluminum induced texturing (AIT) process in order to enhance light management. Surface morphologies were investigated by FE-SEM and optical measurements in ...
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Texturing of glass substrate is an alternative novel method for light trapping, which to enhance the absorbed light by way of increasing the diffused transmittance (haze) so that the amount of absorbed light will be increased instead of texturing transparent conductive oxide (TCO). In this study, aluminum induced texturing (AIT) technique is used to texture different type of glasses to see the effect of the chemical composition on surface morphology and optical properties. Improvement in haze values as well...
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Angular Dependence of Solar Cell Parameters in Crystalline Silicon Solar Cells Textured with Periodic Array of Microholes
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Surface texturing is an indispensable way of increasing absorption in solar cells. In order to properly characterize the effect of texturing, the angular dependence of the incidence light should be addressed. This is particularly important when the actual application where the incidence angle of the sunlight varies during the day is considered. This study presents the angular dependence of solar cell parameters in the case of periodically textured crystalline silicon (c-Si) solar cells with microholes. A st...
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: