Hashin-Shtrikman Bounds of Cubic Crystalline Aggregate Elasticity for poly-Si Solar Cells

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DOI:

https://doi.org/10.24352/UB.OVGU-2021-004

Keywords:

solar energy materials, solar cells, cubic crystalline aggregates, homogenization, linear elastic properties

Abstract

In present work, the studies on the analytical determination of polycrystalline silicon effective mechanical properties
for solar cells based on a class of bounds are intensified while second-order estimates are introduced. Thereby the fundamental
aspects of the Hashin-Shtrikman bounds of linear elastic properties for a cubic crystal aggregate are surveyed. The aggregate
is considered homogeneous and isotropic in a statistical sense. This framework is exploited to determine improved bounds in
comparison to the classically applied first-order bounds. The results gained are related to previously published Voigt and Reuss
bounds and to experimental data. Improvements and problems are highlighted and discussed.

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Published

2021-09-07 — Updated on 2021-09-07

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