# Light management for reduction of bus bar and gridline shadowing in photovoltaic modules

@article{Jaus2010LightMF,
title={Light management for reduction of bus bar and gridline shadowing in photovoltaic modules},
author={Joachim Jaus and Henrikki Pantsar and Johannes Eckert and Matthias Duell and Hans Herfurth and Dan M. J. Doble},
journal={2010 35th IEEE Photovoltaic Specialists Conference},
year={2010},
pages={000979-000983}
}
• J. Jaus, +3 authors D. Doble
• Published 20 June 2010
• Physics
• 2010 35th IEEE Photovoltaic Specialists Conference
Solar cells used in photovoltaic (PV) crystalline silicon modules commonly feature grid fingers and bus bars as front contacts. The grid fingers and bus bars partially block the sunlight from reaching the semiconductor layers of a solar cell and therefore reduce the efficiency of a solar module. In this paper, we present experimental results of different technologies to reduce the shadowing effect that bus bars and grid fingers impose. We focus on two technologies that can be easily integrated…
17 Citations

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## References

SHOWING 1-4 OF 4 REFERENCES
A simple ray tracer to compute the optical concentration of photovoltaic modules
• Physics
• 2006
In a conventional photovoltaic module, some light that falls between the solar cells is internally reflected onto the cells via the backsheet and the glass–air interface of the module; thus, a module
Concentration of solar radiation by white painted transparent plates.
• Physics, Medicine
Applied optics
• 1982
The concentrator has the advantage over other systems in that the concentration is independent of incidence angle and the concentrator is easy to produce, and it needs no tracking system and will concentrate on a cloudy day.
Commercial white paint as back surface reflector for thin-film solar cells
• Materials Science
• 2007
Abstract In this work, commercially available white paint is applied as a pigmented diffuse reflector (PDR) on the rear surface of thin-film crystalline silicon (c-Si) solar cells with a silicon
Light trapping in Silicon-Film™ solar cells with rear pigmented dielectric reflectors
• Chemistry
• 1999
This paper presents the novel method of using pigmented dielectric reflectors to provide light trapping in thin-film silicon solar cells. This type of reflecting material offers many potential