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Erschienen in:
01.05.2014
Low-temperature growth of well-aligned ZnO nanowire arrays by chemical bath deposition for hybrid solar cell application
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 5/2014
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Abstract
Well-aligned ZnO nanowire arrays were grown on indium tin oxide coated glass substrates by a facile chemical bath deposition technique. Morphologies, crystalline structure and optical transmission were investigated by field-emission scanning electron microscope, X-ray diffraction and UV–visible transmission spectrum, respectively. The results showed that ZnO nanowires were aligned in a dense array approximately perpendicular to substrate surface, they were wurtzite-structured (hexagonal) ZnO. In addition, the nanowire arrays exhibited high optical transmission (>85 %) in the visible region. Furthermore, an inverted inorganic/polymer hybrid solar cell was built using as-grown well-aligned ZnO nanowire arrays as inorganic layer, under the AM 1.5 illumination with a light intensity of 80 mW/cm2, the device showed an open circuit voltage (Voc) of 0.44 V, a short circuit current (Jsc) of 3.23 mA/cm2, a fill-factor of 38 %, and a power conversion efficiency of 0.68 %.