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Issue 21, 2011
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Large size, high efficiency fiber-shaped dye-sensitized solar cells

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A high-efficiency dye-sensitized solar cell prototype has been designed and fabricated, in which the working electrode and counter electrode are in direct contact and singly twisted. The cell is sealed in a capillary. In this solar cell configuration, the area ratio between the counter and working electrode is extremely low which allows the independent adjustment of electrolyte volume and the distance between counter electrode and photo-anode. Also it is more easily sealed compared to planar solar cell. The effects of TiO2 film thickness, twisted pitch of counter electrode and length of device have been investigated. Our results indicate that this novel configuration has demonstrated excellent modularization function, three dimensional light harvesting capacities and the relative independence of incident light angles due to the symmetry structure. The power conversion efficiency of one cell of 9.5 cm in length can reach up to 5.41% at standard test condition (100 mW cm−2) and the power output may double under intense diffuse illumination. As far as we know, this is the longest and most efficient fiber-shaped dye-sensitized solar cell consisting of liquid electrolyte. The longer the fiber-shaped solar cell is, the more suitable it is for woven solar power textile if it is encapsulated in transparent flexible plastic capillary.

Graphical abstract: Large size, high efficiency fiber-shaped dye-sensitized solar cells

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Publication details

The article was received on 28 Feb 2011, accepted on 07 Mar 2011 and first published on 21 Apr 2011

Article type: Paper
DOI: 10.1039/C1CP20543A
Citation: Phys. Chem. Chem. Phys., 2011,13, 10076-10083
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    Large size, high efficiency fiber-shaped dye-sensitized solar cells

    Z. Lv, Y. Fu, S. Hou, D. Wang, H. Wu, C. Zhang, Z. Chu and D. Zou, Phys. Chem. Chem. Phys., 2011, 13, 10076
    DOI: 10.1039/C1CP20543A

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