期刊
RENEWABLE ENERGY
卷 72, 期 -, 页码 22-28出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2014.06.043
关键词
Solid-state dye-sensitized solar cells; Poly(3-hexylthiophene); Metal substrate; Flexible; Rear-side illumination; Hybrid solar cell
资金
- National Research Foundation of Singapore [NRF-279-000-276-272]
- Singapore-Berkeley Research Institute for Sustainable Energy [R-279-000-393-592]
- Loreal-Singapore Women in Science National Fellowship
- NUS Graduate School for Integrative Sciences and Engineering
- [IMRE/11-1C0217]
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. (C) 2014 Elsevier Ltd. All rights reserved.
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