Efficiency enhancement for dye-sensitized solar cells with a porous NiO/Pt counter electrode
By Maiaugree, Wasan; Kongprakaiwoot, Natcharee; Tangtrakarn, Apishok; Saekow, Samarn; Pimanpang, Samuk & Amornkitbamrung, Vittaya
Published in Applied Surface Science
2014
Abstract
Bi-layer counter electrodes made of platinum films (Pt) coated on porous nickel oxide nanosheets (PNO) were investigated for a dye sensitized solar cell (DSSC). The PNO and Pt films were deposited using a chemical bath deposition and a DC sputtering technique, respectively. Connected networks of sputtered Pt on PNO nanosheets significantly enhanced electrocatalytic activities due to the increase in the electroactive areas. The solar conversion efficiency of the FTO/PNO/Pt DSSC was 8.17% in comparison to 7.23% for the FTO/Pt DSSC.