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Efficiency Improvement of Metal-Mesh Electrode Type Photoelectrochemical Cells by Oxides Layer Coatings

산화물박막 증착에 의한 금속 메쉬전극 구조 광전기화학셀의 효율 개선에 관한 연구

  • 한치환 (경성대학교 대학원 전기공학과) ;
  • 박선희 (한국에너지기술연구원 태양광연구단) ;
  • 성열문 (경성대학교 전기전자공학과)
  • Received : 2010.12.20
  • Accepted : 2011.02.17
  • Published : 2011.03.01

Abstract

In this work, the $TiO_2$ and $SnO_2$ thin films as blocking layers were coated directly onto the metal-mesh electrode surface to prevent unnecessary inflow of back-transfer electrons from the electrolyte ($I^-/I_3^-$) to the metal-mesh electrode. The DSCs were fabricated with working electrode of SUS mesh coated with blocking $TiO_2$ and $SnO_2$ layers, dye-attached mesoporous $TiO_2$ film, gel electrolyte and counter electrode of Pt-deposited F:$SnO_2$. From the experimental result, it was ascertained that the efficiency of metal electrode coated with $TiO_2$ by Dip-coating was superior to that of metal electrode coated with $SnO_2$ by Dip-coating and screen printing with the results of experiments. The photo-current conversion efficiency of the cell obtained from optimum fabrication condition was 3% ($V_{oc}$=0.61V, $J_{sc}$=11.64 mA/$cm^2$, ff=0.64) under AM1.5, 100 mW/$cm^2$ illumination.

Acknowledgement

Supported by : 한국연구재단

References

  1. L.D. Partain, "Solar cells and Their Applications", John Wily Inc., 1995.
  2. Michael Gratzel, "Perspectives for dye-sensitized nanocrystalline solar cells", Progress in Photovoltaics: Research and Applications, Vol. 8, pp. 171-185, 2000. https://doi.org/10.1002/(SICI)1099-159X(200001/02)8:1<171::AID-PIP300>3.0.CO;2-U
  3. Michael Gratzel, "Review; Dye-sensitized solar cells", Journal of Photochemistry and Photobiology C: Photochemistry Reviews 4, pp.145-153, 2003. https://doi.org/10.1016/S1389-5567(03)00026-1
  4. T. Kato and S. Hayase, "Quasi-Solid Dye Sensitized Solar Cell with Straight Ion Paths", J. Electrochem. Soc., Vol. 154, pp. B117-B121, 2007 https://doi.org/10.1149/1.2393008
  5. Y. M. Sung and H. J. Kim, "Sputter deposition and surface treatment of TiO2 films for dye-sensitized solar cells using reactive RF plasma", Thin Solid Films, Vol. 515, pp.4996-4999, 2007. https://doi.org/10.1016/j.tsf.2006.10.079
  6. Y. Kashiwa, Y. Yoshida and S. Hayase, "All-metal-electrode-type dye sensitized solar cells (transparent conductive oxide-less dye sensitized solar cell) consisting of thick and porous Ti electrode with straight pores", Applied Physics Letters, Vol, 92, 033308, 2008. https://doi.org/10.1063/1.2837633
  7. Doo-Hwan Kim, Jong-Hyun Heo, Dong-Joo Kwak, Youl-Moon Sung, "Synthesis of TCO-free Dye-sensitized Solar Cells with Nanoporous Ti Electrodes Using RF Magnetron Sputtering Technology", Journal of Electrical Engineering & Technology, Vol. 5, pp.146-150, 2010. https://doi.org/10.5370/JEET.2010.5.1.146
  8. 김두환, 한치환, 성열문, "전기화학형 광전변환 셀의 고효율 전해질 제작에 관한 실험적 고찰", 전기학회논문지, 60권, 1호, pp.100-104, 2011. https://doi.org/10.5370/KIEE.2011.60.1.100
  9. 팽성환, 김두환, 박민우, 성열문, "티타늄 메쉬 전극구조를 이용한 염료 태양전지 제작", 전기학회논문지, 58권, 12호, pp.2436-2440, 2009
  10. Jong-Hyun Heo, Ki-Young Jung, Dong-Joo Kwak, Don-Kyu Lee, Youl-Moon Sung, "Fabrication of Titanium-Doped Indium Oxide Films for Dye-Sensitized Solar Cell Application Using Reactive RF Magnetron Sputter Method", IEEE Transaction on Plasma Science, Vol.37, No.8, 2009, 1586-1592. https://doi.org/10.1109/TPS.2009.2023477
  11. Judy N. Hart et al., "TiO2 sol-gel blocking layers for dye-sensitized solar cells", Comptes Rendus Chimie, Vol. 9, pp.622-626, 2006. https://doi.org/10.1016/j.crci.2005.02.052