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Communication Dans Un Congrès Année : 2014

Key parameters of silicon micropillar arrays for solar cell performance optimization

Résumé

Surface nanostructuration is an important challenge for the optimization of light trapping design in solar cell. We present simulations of the optical properties and efficiency of nanostructured (micropilars-MPs- or nanocones-NCs-) silicon based solar cells as well as measurements of their optical absorption. We address the simulation using the Finite Difference Time Domain (FDTD) method, well-adapted to deal with a periodic set of nanostructures. We study the effect of the period, the bottom diameter, the top diameter and the height of the MPs or NCs on the efficiency of the associated solar cell, assuming that one absorbed photon induces one exciton.. We give general trends taking into account diameter, length, period at the same time. Moreover, nanostructured structures have been processed and allow to compare experimental results with simulations. In every case, a good agreement is found.
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Dates et versions

hal-00964078 , version 1 (24-03-2014)

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  • HAL Id : hal-00964078 , version 1

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Di Zhou, Yan Pennec, Bahram Djafari-Rouhani, Odile Cristini, Tao Xu, et al.. Key parameters of silicon micropillar arrays for solar cell performance optimization. European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium Y - Advanced materials and characterization techniques for solar cells II, 2014, Lille, France. ⟨hal-00964078⟩
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