Spray coated seed layer for scalable synthesis of aligned ZnO nanowire arrays on FTO substrate and their photovoltaic properties

• Spray coating has been employed as a non-vacuum route for deposition of a ZnO seed layer on large-area fluorine-doped tin oxide (FTO) glass substrates. Optimization of spray parameters, particularly precursor flow rate and volume, was found to yield preferably oriented and uniform ZnO seed layer. Vertically aligned single crystalline ZnO nanowire arrays with controlled features were grown on aforementioned substrate at 95 °C by a hydrothermal method. The current-voltage characteristics of dye-sensitized solar cells fabricated with the aligned ZnO nanowire arrays as photoanode have demonstrated a maximum photocurrent density of 1.86 mA cm-2 under 1 sun illumination (100 mW cm-2, AM 1.5G). © 2014 Elsevier Ltd and Techna Group S.r.l.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Keramteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Ceramics (hsv//eng)

Nyckelord

C. Optical properties

D. ZnO

E. Electrodes

Nanowire solar cell

Current voltage characteristics

Dye-sensitized solar cells

Nanocomposites

Nanowires

Optical properties

Solar cells

Substrates

Tin oxides

Fluorine doped tin oxide

Hydrothermal methods

Photocurrent density

Photovoltaic property

Precursor flow rates

ZnO

ZnO nanowire arrays

Zinc oxide

Manufacturing and materials engineering

Produktions- och materialteknik

Publikations- och innehållstyp

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