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Soft-template synthesized ordered mesoporous carbon counter electrodes for dye-sensitized solar cells

✍ Scribed by Easwaramoorthi Ramasamy; Jinyoung Chun; Jinwoo Lee

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
413 KB
Volume
48
Category
Article
ISSN
0008-6223

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✦ Synopsis

Ordered mesoporous carbon (OMC) with a high surface area ($1575 m 2 /g) and bimodal pores (2.5 and 6.1 nm) was synthesized using a soft-template method employing triblock copolymer F127 as the structure directing agent and then applied as a low-temperature processable counter electrode for dye-sensitized solar cell (DSSC). The OMC counter electrode-based DSSC shows an energy conversion efficiency of 7.46%, whereas that of a Vulcan counter electrode is 4.30%. Electrochemical impedance spectroscopy analysis reveals decreased charge transfer resistance at the OMC counter electrode-electrolyte interface, thus improved fill factor and energy conversion efficiency.

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