Solid-state D102 dye sensitized/poly(3-hexylthiophene) hybrid solar cells on flexible Ti substrate

Zhaosheng Xue, Long Wang, Wei Liu and Bin Liu

Renewable Energy, 2014, vol. 72, issue C, 22-28

Abstract: Flexible solid-state dye sensitized solar cell is an important milestone for low-cost, large scale fabrication of dye-sensitized solar cells. Flexible solid-state dye-sensitized solar cell is fabricated for the first time on titanium substrates using D102 sensitizer and a sputtered platinum semi-transparent cathode. Devices are illuminated from the cathode side since titanium substrates are non-transparent. Due to rear-side illumination, significant proportion of radiation is absorbed and scattered by poly(3-hexylthiophene) and platinum, respectively. Limiting the amount of platinum and poly(3-hexylthiophene), up to a point, is found to enhance device efficiency. The amount of platinum and poly(3-hexylthiophene) is optimized on glass substrates before fabrication of flexible devices on titanium substrates. The rough surface of titanium substrates is smoothened until a mirror finish and the growth of a thin layer of native oxide enhanced the device efficiency. Under optimized conditions, an efficiency of 1.20% is obtained for devices fabricated on titanium foil substrates. The lower efficiency as compared to conventional devices is mainly due to light absorption/scattering from the poly(3-hexylthiophene) and platinum layers.

Keywords: Solid-state dye-sensitized solar cells; Poly(3-hexylthiophene); Metal substrate; Flexible; Rear-side illumination; Hybrid solar cell (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:72:y:2014:i:c:p:22-28

DOI: 10.1016/j.renene.2014.06.043

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