Details

Autor(en) / Beteiligte

• Sharma, Shyamalima
• Khannam, Momina
• Dolui, Swapan K.

Titel

A quasi solid state dye sensitized solar cell based on gelatin/multiwalled carbon nanotube gel electrolyte and ZnO nanorod photoanode

Ist Teil von

• Journal of materials science. Materials in electronics, 2016-08, Vol.27 (8), p.7864-7875

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2016

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• One-dimensional zinc oxide (ZnO) nanostructures have a strong impact on dye sensitized solar cells (DSSCs) as a photoanode. Such a nanostructure offers a direct route to the anode for photo-generated electrons resulting from the increased carrier recombination resistance. This manuscript is concerned with the formation of different aspect ratio ZnO nanorod (8–20) by a simple hydrothermal method and the use of such nanorods into the photoanode. The carboxy-functionalized multiwalled carbon nanotubes (COOH-MWCNT) immobilized into gelatin hydrogel was taken as the gel electrolyte. At an optimum concentration of 0.2 % MWCNT, the fabricated device shows an open circuit voltage (V oc ) of 0.934 V, short circuit current density (J sc ) of 8.143 mA/cm 2 and power conversion efficiency (PCE) of 1.35 % for ZnO nanorods with aspect ratio 20. On the other hand, the conventional ZnO shows only V oc of 0.743 V, J sc of 5.525 mA/cm 2 and PCE of 0.21 % under identical condition. This novel fabrication method can thus be considered as a simple and improved way to well-defined photoanodes for quasi solid state DSSCs.