Dye-sensitized solar cells fabricated with size-selected titanium dioxide nanowires via an electrospinning method

作者：Noh Suk In; Ahn Hyo Jin^*

来源：Journal of Ceramic Processing Research, 2012, 13(1): S1-S5.

• Electrospinning
• TiO2
• Nanowires
• Photovoltaic studies
• Dye-sensitized solar cells

Two types of size-selected titanium dioxide (TiO2) nanowires (NWs) have been successfully synthesized via an electrospinning method and their structural and photovoltaic features investigated for use as a photoelectrode in dye-sensitized solar cells (DSSCs). Scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) results show that two types of size-selected TiO2 NWs, which are made of anatase and rutile phases, have average diameters of similar to 100 nm and similar to 30 nm. Photocurrent-voltage curves show that the TiO2 NW photoelectrodes fabricated with a similar to 30 nm diameter exhibit a superior short-circuit current density of 10.86 mA/cm(2) and a cell efficiency of 3.93%, for an area of 0.196 cm(2) compared to those fabricated with a similar to 100 nm diameter, which is attributed to the increased specific surface area that allows for a higher rate of dye adsorption.

• 出版日期2012-8