Hierarchical vertically oriented graphene as a catalytic counter electrode in dye-sensitized solar cells

Kehan Yu; Zhenhai Wen; Haihui Pu; Ganhua Lu; Zheng Bo; Haejune Kim; Yuanyuan Qian; Erin Andrew; Shun Mao; Junhong Chen

doi:10.1039/C2TA00380E

Hierarchical vertically oriented graphene as a catalytic counter electrode in dye-sensitized solar cells†

Kehan Yu,^a Zhenhai Wen,^a Haihui Pu,^a Ganhua Lu,^a Zheng Bo,^b Haejune Kim,^a Yuanyuan Qian,^a Erin Andrew,^c Shun Mao^a and Junhong Chen*^a

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^a Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, WI 53211, USA
E-mail: jhchen@uwm.edu
Fax: +1-414-229-6958
Tel: +1-414-229-2615

^b State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang 310027, China

^c Department of Biology, Alverno College, 3400 South 43rd Street, Milwaukee, WI 53234, USA

Abstract

Vertically oriented graphene (VG) nanosheets are synthesized for counter electrodes (CEs) of dye-sensitized solar cells (DSSCs). The VG electrode exhibits charge transfer resistance about 1% of the Pt electrode and improves power conversion efficiency of DSSCs from 4.68% (for Pt CEs) to 5.36%.

Journal of Materials Chemistry A

Hierarchical vertically oriented graphene as a catalytic counter electrode in dye-sensitized solar cells†

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Hierarchical vertically oriented graphene as a catalytic counter electrode in dye-sensitized solar cells

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