Silicon Nanowire-Based Solar Cells on Glass: Synthesis, Optical Properties, and Cell Parameters

in: Nano Letters (2009)
Sivakov, Vladimir; Andrä, Gudrun; Gawlik, Annett; Berger, Andreas; Plentz, Jonathan; Falk, Fritz; Christiansen, Silke
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 μm multicrystalline p+nn+ doped silicon layers thereby creating the nanowire structure. Low reflectance (90% at 500 nm) have been measured. The highest open-circuit voltage (Voc) and short-circuit current density (Jsc) for AM1.5 illumination were 450 mV and 40 mA/cm2, respectively at a maximum power conversion efficiency of 4.4%.

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