Effects of counter electrodes on photovoltaic performance of all-solid-state TiO2-based dye-sensitized solar cells. (17th February 2015)

• Record Type: Journal Article
• Authors: Shang, Mingwei; Liu, Benjamin; Dong, Zhenhua; Dong, Zhenyu; Dong, Lifeng
• Is Part Of: Materials research express. Volume 2:Number 3(2015)
• Publication Date: 2015-02-17
• Subjects: dye-sensitized -- solar cell -- counter electrodes; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/2/3/035502
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: In order to analyse the effects of counter electrodes on photovoltaic performance of dye-sensitized solar cells (DSSCs), different electrodes were used as the counter electrodes for all-solid-state TiO2 -based DSSCs. An inorganic solid-state electrolyte, CsSnI2.95 F0.05, was selected to couple with N719 dye-sensitized TiO2 nanorod arrays to fabricate the DSSCs. Fluorine doped tin oxide transparent conducting glass (FTO), platinum coated FTO (Pt/FTO), graphite coated FTO (graphite/FTO), and graphite coated common glass (graphite/glass) were investigated as the counter electrodes, and the cells composed of the corresponding electrodes above have power-conversion efficiencies of 2.17%, 9.84%, 7.62%, and 3.45%, respectively. Our findings indicate that due to its unique catalytic and conducting properties, graphite can replace both Pt and FTO as a counter electrode to reduce the fabrication cost of all-solid-state TiO2 -based DSSCs.