A novel counter electrode based on hierarchical porous carbon for dye-sensitized solar cells

作者:Wang Guiqiang*; Xing Wei; Zhuo Shuping
来源:11th IUMRS International Conference in Asia (IUMRS-ICA 2010), 2010-09-25 to 2010-09-28.
DOI:10.4028/www.scientific.net/MSF.685.1

摘要

Hierarchical porous carbons (HPC) were synthesized by a combination of self-assembly and chemical activation method. A mesoporous carbon with large-size pore was used as raw materials. N-2 sorption measurement indicated that plenty of micropores generated within the mesopore wall in the mesoporous carbon during KOH activation. Electrochemical impedance spectroscopy measurement demonstrated a high electrocatalytic activity of HPC electrode for triiodide reduction. The overall conversion efficiency of dye-sensitized solar cells with HPC counter electrode was 6.48%, which is similar to that of the device with conventional Pt counter electrode.

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