Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Synthesis of TiO2/ITO Nanostructure Photoelectrodes and Their Application for Dye-sensitized Solar Cells

TiO2/ITO 나노구조체 광전극의 합성 및 염료감응 태양전지에의 적용

  • Kim, Dae-Hyun (Nano-Materials Center, Korea Institute of Science and Technology) ;
  • Park, Kyung-Soo (Nano-Materials Center, Korea Institute of Science and Technology) ;
  • Choi, Young-Jin (Nano-Materials Center, Korea Institute of Science and Technology) ;
  • Choi, Heon-Jin (Department of Materials Science and Engineering, Yonsei University) ;
  • Park, Jae-Gwan (Nano-Materials Center, Korea Institute of Science and Technology)
  • 김대현 (한국과학기술연구원 나노재료센터) ;
  • 박경수 (한국과학기술연구원 나노재료센터) ;
  • 최영진 (한국과학기술연구원 나노재료센터) ;
  • 최헌진 (연세대학교 신소재공학과) ;
  • 박재관 (한국과학기술연구원 나노재료센터)
  • Received : 2010.10.08
  • Accepted : 2010.10.25
  • Published : 2011.01.31
Download PDF
⟨ Previous Next ⟩

Abstract

A Sn-doped $In_2O_3$ (ITO) nanowire photoelectrode was produced using a simple metal evaporation method at low synthesis temperature (< $540^{\circ}C$). The nanowire electrodes have large surface area compared with that of flat ITO thin film, and show low electrical resistivity of $5.6{\times}10^{-3}{\Omega}cm$ at room temperature. In order to apply ITO nanowires to the photoelectrodes of dye-sensitized solar cell (DSSC), those surfaces were modified by $TiO_2$ nanoparticles using a chemical bath deposition (CBD) method. The conversion efficiency of the fabricated $TiO_2$/ITO nanostructure-based DSSC was obtained at 1.4%, which was increased value by a factor of 6 than one without ITO nanowires photoelectrode. This result is attributed to the large surface area and superior electrical property of the ITO nanowires photoelectrode, as well as the structural advantages, including short diffusion length of photo-induced electrons, of the fabricated $TiO_2$/ITO nanostructure-based DSSC.

Keywords

References

  1. R. B. H. Tahar, T. Ban, Y. Ohya, and Y. Takahashi, "Tin Doped Indium Oxide Thin Films: Electrical Properties," J. Appl. Phys., 83 [5] 2631-45 (1998). https://doi.org/10.1063/1.367025
  2. M. Toivola, J. Halme, K. Miettunen, K. Aitola, and P. D. Lund, "Nanostructured Dye Solar Cells on Flexible Substrates-Review," Int. J. Energy Res., 33 1145-60 (2009). https://doi.org/10.1002/er.1605
  3. M. Gratzel, "Solar Energy Conversion by Dye-Sensitized Photovoltaic Cells," Inorg. Chem., 44 [20] 6841-51 (2005). https://doi.org/10.1021/ic0508371
  4. A. Azens and C. G. Granqvist, "Electrochromic Smart Windows: Energy Efficiency and Device Aspects," J. Solid State Electrochem., 7 64-8 (2003). https://doi.org/10.1007/s10008-002-0313-4
  5. J. S. Kim, M. Granstrom, R. H. Friend, N. Johansson, W. R. Salaneck, R. Daik, W. J. Feast, and F. Cacialli, "Indium-tin Oxide Treatments for Single-and Double-Layer Polymeric Light-emitting-diodes: The Relation Between the Anode Physical, Chemical, and Morphological Properties and the Device Performance," J. Appl. Phys., 84 [12] 6859-70 (1998). https://doi.org/10.1063/1.368981
  6. A. Kongkanand, R. M. Dominguez, and P. V. Kamat, "Single Wall Carbon Nanotube Scaffolds for Photoelectrochemical Solar Cells. Capture and Transport of Photogenerated Electrons," Nano Letters, 7 [3] 676-80 (2007). https://doi.org/10.1021/nl0627238
  7. D. Yu, D. Wang, W. Yu, and Y. Qian, "Synthesis of ITO Nanowires and Nanorods with Corundum Structure by a Co-precipitation-anneal Method," Mater. Lett., 58 84-7 (2003).
  8. P. Nguyen, H. T. Ng, J. Kong, A. M. Cassell, R. Quinn, J. Li, J. Han, M. McNeil, and M. Meyyappan, "Epitaxial Directional Growth of Indium-Doped Tin Oxide Nanowire Arrays," Nano Letters, 3 [7] 925-28 (2003). https://doi.org/10.1021/nl0342186
  9. R. Savn and E. Joanni, "Effect of Processing Conditions on the Nucleation and Growth of Indium-tin-oxide Nanowires Made by Pulsed Laser Ablation," J. Mater. Sci., 43 609-13 (2008). https://doi.org/10.1007/s10853-007-1778-4
  10. P. L. Hung, M. H. Wen, K. H. Hung, J. S. Bow, H. W. Wang, J. C. C. Han, Y. F. Lu, J. C. Chung, Y. C. Liu, Y. Z. Zeng, and K. R. Ratinac, "3D Electrodes for Dye-sensitized Solar Cells: Synthesis of ITO Nanowire Arrays Inside the $TiO_2$ Nanotubes," J. Chin. Chem. Soc., 57 [5A] 1-5 (2010). https://doi.org/10.1002/jccs.201000001
  11. E. Joanni, R. Savu, M. D. S. Goes, P. R. Bueno, J. Freitas, A. F. Nogueira, E.Longo, and J. A. Varela, "Dye-sensitized Solar Cell Architecture Based on Indium-tin Oxide Nanowires Coated with Titanium Oxide," Scrip. Mater., 57 277-80 (2007). https://doi.org/10.1016/j.scriptamat.2007.03.051
  12. H. W. Wang, C.F. Ting, M. K. Hung, C. H. Chiou, Y. L. Liu, Z. Liu, K. R. Ratina, and P. Pinger, "Three-dimensional Electrodes for Dye-sensitized Solar Cells: Synthesis of Indium-tin-oxide Nanowire Arrays and ITO/$TiO_2$ Core-shell Nanowire Arrays by Electrophoretic Deposition," Nanotechnology, 20 055601 (2009). https://doi.org/10.1088/0957-4484/20/5/055601
  13. D. Yu, W. Yu, D. Wang, and Y. Qian, "Structural, Optical, and Electrical Properties of Indium Tin Oxide Films with Corundum Structure Fabricated by a Sol-gel Route Based on Solvothermal Reactions," Thin Solid Films, 419 166-72 (2002). https://doi.org/10.1016/S0040-6090(02)00482-0