Browse > Article

Effect of Indium Zinc Oxide Transparent Electrode on Power Conversion Efficiency of Flexible Dye-Sensitized Solar Cells  

Lee, Do Young (Department of Chemical Engineering, Inha University)
Chung, Chee Won (Department of Chemical Engineering, Inha University)
Publication Information
Korean Chemical Engineering Research / v.47, no.1, 2009 , pp. 105-110 More about this Journal
Abstract
IZO thin films have been deposited on poly(ethylene terephthalate) flexible substrate under varying radio frequency (rf) power, process pressure and thickness of IZO films using rf magnetron sputtering under $Ar/O_2$ gas mix. As the process pressure increased, the deposition rate was slightly increased and the transmittance showed little change, but the resistivity was increased. With increasing rf power, the great increase in deposition rate was observed but the transmittance showed a slight change only, and the resistivity was decreased. In addition, an attempt was made to find the optimal thickness of IZO films under varying the thickness of IZO films at the process conditions of 1 mTorr pressure and 90 W rf power, which showed lowest resistivity. IZO thin films with the thickness of $1,500{\AA}$ showed lowest resistivity and also showed highest transmittance around the wavelength zone of the maximum absorption. The power conversion efficiency of solar cells fabricated using various transparent electrodes with different thicknesses were measured and the solar cell with IZO electrode of $1,500{\AA}$ showed the maximum conversion-efficiency of 2.88 %.
Keywords
Flexible Dye-sensitized Solar Cell; Indium Zinc Oxide; rf Magnetron Sputtering; Poly(Ethylene Terephthalate) Substrate;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Fortunato, E., Ginley, D., Hosono, H. and Paine, D. C., 'Transparent Conducting Oxides for Photovoltaics,' MRS Bulletin, 32, 242-247(2007)   DOI
2 Song, Y. S., Park, J. K., Kim, T. W. and Chung, C. W., "Influence of Process Parameters on the Characteristics of Indium Zinc Oxide Thin Films Deposited by DC Magnetron Sputtering," Thin Solid Films, 467(1-2), 117-120(2004)   DOI   ScienceOn
3 Shah, A., Torres, P., Tscharner, R., Wyrsch, N. and Keppner, H., "Photovoltaic Technology: The Case for Thin-Film Solar Cells," Science, 285(5428), 692-698(1999)   DOI   PUBMED   ScienceOn
4 Wang, P., Klein, C., Baker, R. H., Zakeeruddin, S. M. and Gratzel, M., "A High Molar Extinction Coefficient Sensitizer for Stable Dye-Sensitized Sola Cells," J. Am. Chem. Soc., 127(3), 808-809 (2005)   DOI   ScienceOn
5 Longo, C., Freitas, J. and Paoli, M.-A. D., 'Performance and Stability of $TiO_2$/dye Solar Cells Assembled with Flexible Electrodes and a Polymer Electrolyte,' J. Photoch. Photobio. A., 159(1), 33-39(2003)   DOI   ScienceOn
6 Roth, A. P., Webb, J. B. and Williams, D. F., "Band-Gap Narrowing in Heavily Defect-Doped ZnO," Phys. Rev. B, 25(12), 7836-7839(1982)   DOI
7 Dai, S. Y. and Wang, K. J., "Optimum Nanoporous $TiO_2$ Film and Its Application to Dye-sensitized Solar Cells," Chin. Phys. Lett., 20(6), 953-955(2003)   DOI   ScienceOn
8 Pan, H. C., Shiao, M. H., Su, D. Y. and Hsiao, C. N., "Influence of Sputtering Parameter on the Optical and Electrical Properties of Zinc-Doped Indium Oxide Thin Films," J. Vac. Sci. Techonl. A, 23(4), 1187-1191(2005)   DOI   ScienceOn
9 Cho, H. N., Li, Y. L., Min, S. R. and Chung, C. W., 'Effect of O2 Concentration and Annealing Temperature on the Characteristics of Indium Zinc Oxide Thin Films,' J. Korean Ind. Eng. Chem., 17(6), 644-670(2006)
10 Vink, T. J., Walrave, W. J., Daams, L. C., Baarslag, P. C. and van den Meerakker, J. E. A. M., "On the Homogeneity of Sputter-Deposited ITO Films Part I. Stress and Microstructure," Thin Solid Films, 266(2), 145-151(1995)   DOI   ScienceOn
11 Tauste, D. G., Zumeta, I., Vigil, E., Fenollosa, M. A. H, Demenech, X. and Ayllon, J. A., "New Low-Temperature Preparation Method of the TiO2 Porous Photoelectrode for Dye-Sensitized Solar Cells Using UV Irradiation," J. Photoch. Photobio. A, 175(2-3), 165-171(2005)   DOI   ScienceOn
12 Calnan, S., Hupkes, J., Rech, B., Siekmann, H. and Tiwari, A. N., "High Deposition Rate Aluminum-Doped Zinc Oxide Films with Highly Efficient Light Trapping for Silicon Thin Film Solar Cells," Thin Solid Films, 516, 1242-1248(2008)   DOI   ScienceOn
13 Zhang, D. S., Yoshiba, T., Oekermann, T., Furuta, K. and Minoura, H., "Room-Temperature Synthesis of Porous Nanoparticulate $TiO_2$ Films for Flexible Dye-Sensitized Solar Cells," Adv. Funct. Mater.,16(9), 1228-1234(2006)   DOI   ScienceOn
14 Li, Y. L., Cho, H. N., Min, S. R. and Chung, C. W., 'Optical and Electrical Properties of RF-Sputtered Indium Zinc Oxide Films,' J. Ind. Eng. Chem., 13(5), 777-780(2007)
15 Park, N. G., 'Dye-Sensitized Solar Cell,' J. Ind. Eng. Chem., 15(3), 265-277(2004)
16 Glunz, S. W., "New Concepts for High-Efficiency Silicon Solar Cells," Solar Energy Materials & Solar Cells, 90, 3276-3284(2006)   DOI   ScienceOn