Optimisation of rear contact geometry of high efficiency silicon solar cells using three dimensional numerical modelling

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Abstract
This paper describes the use of three-dimensional (3D) device modelling for the optimisation of the rear contact geometry of high-efficiency silicon solar cells. We describe the techniques and models used as well as their limitations. Our approach is contrasted with previously published 3D studies of high-efficiency silicon solar cells. Results show that the optimum spacing is about 2/3 of that predicted by 2D simulations, and exhibits a much stronger dependence on contact spacing. The optimal value found is about 60% of that of the present UNSW PERL cells, however, the possible efficiency gain is only about 0.1% absolute.
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Author(s)
Heiser, Gernot
Altermatt, Peter
Williams, Angela-Margaret
Sproul, Alistair
Green, Martin
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Publication Year
1995
Resource Type
Conference Paper
Degree Type
UNSW Faculty