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Optimal design of aperiodic, vertical silicon nanowire structures for photovoltaics
2011
Optics Express
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We design a partially aperiodic, vertically-aligned silicon nanowire array that maximizes photovoltaic absorption. The optimal structure is obtained using a random walk algorithm with transfer matrix method based electromagnetic forward solver. The optimal, aperiodic structure exhibits a 2.35 times enhancement in ultimate efficiency compared to its periodic counterpart. The spectral behavior mimics that of a periodic array with larger lattice constant. For our system, we find that
doi:10.1364/oe.19.0a1148
pmid:21935258
fatcat:od73a3hce5hnhmaum5diebiemi