期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 94, 期 2, 页码 317-322出版社
ELSEVIER
DOI: 10.1016/j.solmat.2009.10.006
关键词
Dye-sensitized solar cells; Dye-sensitized solar tubes; FTO synthesis; Spray pyrolysis; Current collector; Sealing
资金
- Israeli Science Foundation
- European Union
A dye-sensitized solar cell (DSSC) fabricated inside a glass tube to form a dye-sensitized solar tube (DSST) is presented. We developed the synthesis of Fluorine-doped Tin oxide (FTO) with a high optical transmittance and low sheet resistance, which was deposited inside a glass tube by spray pyrolysis. The FTO was covered with a mesoporous TiO2 film using electrophoretic deposition (EPD). Subsequently the tube was sintered, sensitized with a Ru-dye (N3) and immersed into redox electrolyte while a Pt-coated rod closed the electrical circuit. Sealing of DSSCs is still a major problem. The new design reduces significantly the area that requires sealing compared to conventional flat cells, moreover sealing of a tube is significantly simpler than two flat plates. A huge advantage of the tube design is the possibility to incorporate a Current collector without blocking direct Sunlight front entering the cell. Panels consisting of DSSTs allow air flow in between the tubes, thus decreasing the wind resistivity while the cylindrical shape of the DSST can be used to collect diffuse light more effectively. Initial results on a prototype show a light to electric power conversion efficiency of 2.8%, demonstrating the feasibility of the new tube concept. (C) 2009 Elsevier B.V. All rights reserved.
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