Special Section on Organic Photovoltaics

Transparent conductive oxideless tandem dye-sensitized solar cells consisting of light-splitting structures

[+] Author Affiliations
Jun Usagawa, Masaki Kaya, Yuhei Ogomi, Shyam S. Pandey, Shuzi Hayase

Kyushu Institute of Technology, Graduate School of Life Science and Systems Engineering, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu 808-0196 Japan

J. Photon. Energy. 1(1), 011110 (March 14, 2011). doi:10.1117/1.3555458
History: Received October 17, 2010; Revised December 15, 2010; Accepted January 25, 2011; Published March 14, 2011; Online March 14, 2011
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Fiber and pillar tandem dye-sensitized solar cells (DSCs), which do not need transparent conductive oxideless layer tandem cells (TCO-less TAN), are fabricated and their fundamental tandem properties are evaluated. TCO-less TAN cells consist of a light-splitting waveguide and TCO-less DSCs. The TCO-less DSC is composed of a nanoporous titania back-contacted with a porous Ti electrode or a nanoporous titania sheet supported by a stainless steel mesh whose surface was protected with TiOx thin layers. Two kinds of light-splitting structures are introduced. One is a light-splitting structure in which polystyrene particles with different diameters are dispersed in water. The other consists of dichroic mirrors. These light-splitting structures are coupled with TCO-less DSCs stained with dyes absorbing light corresponding to these split lights. Open circuit voltages (Voc) of these TCO-less tandem DSCs are two times (two tandem structure) or three times (three tandem structure) higher than those of the corresponding single cells, demonstrating that these structures work as tandem cells.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation

Jun Usagawa ; Masaki Kaya ; Yuhei Ogomi ; Shyam S. Pandey and Shuzi Hayase
"Transparent conductive oxideless tandem dye-sensitized solar cells consisting of light-splitting structures", J. Photon. Energy. 1(1), 011110 (March 14, 2011). ; http://dx.doi.org/10.1117/1.3555458


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