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Nano Lett. 2009 Apr;9(4):1549-54. doi: 10.1021/nl803641f.

Silicon nanowire-based solar cells on glass: synthesis, optical properties, and cell parameters.

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  • 1Max Planck Institute of Microstructure Physics, Halle, Germany.


Silicon nanowire (SiNW)-based solar cells on glass substrates have been fabricated by wet electroless chemical etching (using silver nitrate and hydrofluoric acid) of 2.7 microm multicrystalline p(+)nn(+) doped silicon layers thereby creating the nanowire structure. Low reflectance (<10%, at 300-800 nm) and a strong broadband optical absorption (>90% at 500 nm) have been measured. The highest open-circuit voltage (V(oc)) and short-circuit current density (J(sc)) for AM1.5 illumination were 450 mV and 40 mA/cm(2), respectively at a maximum power conversion efficiency of 4.4%.

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