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International Journal of Photoenergy
Volume 2014, Article ID 376315, 7 pages
http://dx.doi.org/10.1155/2014/376315
Research Article

Fabrication and Characterization of Dye-Sensitized Solar Cells for Greenhouse Application

1IT Materials and Components Laboratory, Electronics and Telecommunications Research Institute, Daejeon 305-700, Republic of Korea
2Sun Moon University, Asan-si, Chungnam 336-708, Republic of Korea
3Department of Chemistry and Research Institute of Natural Science, Graduate School for Molecular Materials and Nanochemistry, Gyeongsang National University, Jinju 660-701, Republic of Korea
4Department of Chemistry Education, Kyungpook National University, Daegu 702-701, Republic of Korea

Received 24 June 2014; Accepted 20 August 2014; Published 8 September 2014

Academic Editor: Mohamed Sabry A Abdel-Mottaleb

Copyright © 2014 Jeum-Jong Kim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We have developed dye-sensitized solar cells using novel sensitizers with enhanced transmittance of red (625–675 nm) and blue (425–475 nm) wavebands to control the illumination condition in the greenhouse. Novel ruthenium bipyridyl sensitizers with general formulas (Me3PhN)4[Ru(dcbpy)2(NCS)2] (JJ-7) and (Me3BnN)4[Ru(dcbpy)2(NCS)2] (JJ-9) have been synthesized and demonstrated as efficient sensitizers in dye-sensitized solar cells for greenhouse application. Under standard AM 1.5 sunlight, the solar cell of JJ-7 using a liquid-based electrolyte exhibits a short-circuit photocurrent density of 8.49 mA/cm2, an open-circuit voltage of 0.83 V, and a fill factor of 0.71, corresponding to an overall conversion efficiency of 4.96% on 5 m TiO2 film. The transmittance of JJ-7 and JJ-9 shows 62.0% and 61.0% at 660 nm and 18.0% and 15.0% at 440 nm for cultivation on 5 m TiO2 film, respectively.