Browse > Article
http://dx.doi.org/10.4191/kcers.2016.53.1.110

Properties of Working Electrodes with IGZO layers in a Dye Sensitized Solar Cell  

Kim, Gunju (Department of Materials Science and Engineering, University of Seoul)
Noh, Yunyoung (Department of Materials Science and Engineering, University of Seoul)
Choi, Minkyoung (Department of Materials Science and Engineering, University of Seoul)
Kim, Kwangbae (Department of Materials Science and Engineering, University of Seoul)
Song, Ohsung (Department of Materials Science and Engineering, University of Seoul)
Publication Information
Journal of the Korean Ceramic Society / v.53, no.1, 2016 , pp. 110-115 More about this Journal
Abstract
We prepared a working electrode (WE) coated with 0 ~ 50 nm-thick indium gallium zinc oxide(IGZO) by using RF sputtering to improve the energy conversion efficiency (ECE) of a dye sensitized solar cell (DSSC). Transmission electron microscope (TEM) and energy dispersive spectroscopy (EDS) were used to analyze the microstructure and composition of the IGZO layer. UV-VIS-NIR spectroscopy was used to determine the transparency of the WE with IGZO layers. A solar simulator and a potentiostat were used to confirm the photovoltaic properties of the DSSC with IGZO layer. From the results of the microstructural analysis, we were able to confirm the successful deposition of an amorphous IGZO layer with the expected thickness and composition. From the UV-VIS-NIR analysis, we were able to verify that the transparency decreased when the thickness of IGZO increased, while the transparency was over 90% for all thicknesses. The photovoltaic results show that the ECE became 4.30% with the IGZO layer compared to 3.93% without the IGZO layer. As the results show that electron mobility increased when an IGZO layer was coated on the $TiO_2$ layer, it is confirmed that the ECE of a DSSC can be enhanced by employing an appropriate thickness of IGZO on the $TiO_2$ layer.
Keywords
Dye sensitized solar cells; RF sputtering; Energy conversion efficiency; IGZO;
Citations & Related Records
연도 인용수 순위
  • Reference
1 S. Venkatesan, S. Su, S. Kao, H. Teng, and Y. Lee, "Stability Improvement of Gel-State Dye-Sensitized Solar Cells by Utilization the Co-Solvent Effect of Propionitrile/Acetonitrile and 3-Methoxypropionitrile/Acetonitrile with Poly (Acrylonitrile-Co-Vinylacetate)," J. Power Sources, 274 506-11 (2015).   DOI
2 R. Lessmann and I. A. Hummelgen, "Thin Copolymer-Cased Light-Emitting Display Made with Fuorine-Foped Tin Oxide Substrates," Mater. Res., 7 467-71 (2004).   DOI
3 S. Chappel, S. Chen, and A. Zaban, "$TiO_2$-Coated Nanoporous SnO2 Electrodes for Dye Sensitized Solar Cells," Langmuir, 18 3336-42 (2002).   DOI
4 E. Palomares, J. N. Clifford, S. A. Haque, T. Lutz, and J. R. Durrant, "Slow Charge Recombination in Dye-Sensitized Solar Cells (DSSC) Using $Al_2O_3$ Coated Nanoporous $TiO_2$ Films," Chem. Commun., 2002 1464-65 (2002).
5 S. G. Chen, S. Chappel, Y. Diamant, and A. Zaban, "Preparation of $Nb_2O_5$ Coated $TiO_2$ Nanoporous Electrodes and their Application in Dye-Sensitized Solar Cells," Chem. Mater., 13 4629-34 (2001).   DOI
6 J. Park, T. Kim, D. Stryakhilev, J. Lee, S. An, Y. Pyo, D. Lee, Y. Mo, D. Jin, and H. Chung, "Flexible Full Color Organic Light-Emitting Diode Display on Polyimide Plastic Substrate Driven by Amorphous Indium Gallium Zinc Oxide Thin-Film Transistors," Appl. Phys. Lett., 95 013503 (2009).   DOI
7 K. Nomura, H. Ohta, A. Takagi, T. Kamiya, M. Hirano, and H. Hosono, "Room-Temperature Fabrication of Transparent Flexible Thin-Film Transistors Using Amorphous Oxide Semiconductors," Nature, 432 488-92 (2004).   DOI
8 B. O'Regan and M. Gratzel, "A Low-Cost, High-Efficiency Solar Cell Based on Dye-Sensitized Colloidal $TiO_2$ Films," Nature, 353 737-40 (1991).   DOI
9 M. A. Green, K. Emery, Y. Hishikawa, W. Warta, and E. D. Dunlop, "Solar Cell Efficiency Tables," Prog. Photovolt Res. Appl., 22 701-10 (2014).   DOI
10 C. Tsai, S. Hsu, C. Lu, Y. Tsai, T. Huang, Y. Chen, Y. Jhang, and C. Wu, "Influences of Textures in Pt Counter Electrode on Characteristics of Dye-Sensitized Solar Cells," Org. Electron., 13 199-205 (2012).   DOI
11 Y. Noh, K. Yoo, B. Yu, J. Han, M. Ko, and O. Song, "Ru Employed as Counter Electrode for TCO-less Dye Sensitized Solar Cells," Korean J. Met. Mater., 50 [2] 159-63 (2013).   DOI
12 Y. Noh and O. Song, "Properties of the Nano-Thick Cr/Pt Bilayered Catalytic Layer Employed Dye Sensitized Solar Cells," Korean J. Met. Mater., 52 [4] 249-54 (2012).   DOI
13 H. Wang, H. Li, B. Xue, Z. Wang, Q. Meng, and L. Chen, "Solid-State Composite Electrolyte Lil/3-Hydroxypropioni-trile/$SiO_2$ for Solar Cells," J. Am. Chem. Soc., 127 6394-401 (2005).   DOI
14 M. M. Noor, M. H. Buraidah, M. A. Careem, S. R. Majid, and A. K. Arof, "An Optimized Poly(vinylidene fluoridehexafluoropropylene)-NaI Gel Polymer Electrolyte and its Application in Natural Dye Sensitized Solar Cells," Electrochim. Acta, 121 159-67 (2014).   DOI