Publication Type:

Journal Article

Source:

Journal of Materials Chemistry, Volume 22, Number 5, p.2166-2172 (2012)

URL:

http://www.scopus.com/inward/record.url?eid=2-s2.0-84855710602&partnerID=40&md5=b24fd4796069a9561033d59883080ffc

Keywords:

Average diameter, Conversion efficiency, Dye-Sensitized solar cell, Electrospinning, Electrospinning method, Electrospuns, Large-scale production, Nanofibers, Nanowires, Nozzles, Open Circuit Voltage, Photoelectrochemical cells, Power conversion efficiencies, Production rates, Rotating drums, Single nozzle, Solar cells, Spatial orientations, Substrates, Transparent conducting oxide, Vertically aligned, Well-aligned, Working electrode

Abstract:

We demonstrate a large-scale production of aligned SnO 2 nanofibers with a multi-nozzle electrospinning method combined with an air-shield enclosed rotating drum collector. The production rate by this multi-nozzle approach is several times higher than that of the single-nozzle electrospinning. The nanofibers produced were having a short range of diameters similar to the case of nanofibers produced by single nozzle electrospinning. The well-aligned nanofibers are subsequently processed into vertically oriented SnO 2 nanowires on an FTO substrate. The average diameter and length of the wires were 75 ± 25 nm and 19 ± 2 μm, respectively. Dye-sensitized solar cells using this nanostructured material as the working electrode yielded a short-circuit current density (J sc) of 9.9 mA cm -2 (which is 42% higher than that achieved by nanowires produced by other methods), an open-circuit voltage (V oc) of 0.525 V and a power conversion efficiency (η) of 2.53%. We believe that improvement of the multi-nozzle electrospinning is highly promising for commercialization due to simplicity and easiness of fabricating the spinneret, control over the diameter and spatial orientation of the fibers. © 2012 The Royal Society of Chemistry.

Notes:

cited By 29

Cite this Research Publication

T. Krishnamoorthy, Tang, M. Z., Verma, A., Nair, A. S., Pliszka, D., Mhaisalkar, S. G., and Ramakrishna, S., “A facile route to vertically aligned electrospun SnO 2 nanowires on a transparent conducting oxide substrate for dye-sensitized solar cells”, Journal of Materials Chemistry, vol. 22, pp. 2166-2172, 2012.