전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제61권1호
  • /
  • Pages.85-88
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  • 2012
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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Blocking layer 제작에 따른 염료감응형 태양전지 출력특성 및 내부 임피던스 분석

Analyses of the Output Characteristics and the Internal Impedance of Dye-sensitized Solar Cell According to the Fabrication of the Blocking Layer

  • 김진경 (부산대 공대 전자전기공학과) ;
  • 손민규 (부산대 공대 전자전기공학과) ;
  • 김수경 (부산대 공대 전자전기공학과) ;
  • 홍나영 (부산대 공대 전자전기공학과) ;
  • 김병만 (부산대 공대 전자전기공학과) ;
  • 프라바카르 (부산대 공대 전자전기공학과) ;
  • 김희제 (부산대 전자전기공학)
  • 투고 : 2011.09.23
  • 심사 : 2011.12.05
  • 발행 : 2012.01.01
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초록

DSCs are based on a dye-adsorbed porous $TiO_2$ layer as a photo electrode [1]. Under the illumination, dye molecules are excited and electrons are produced. The injected electrons in the conduction band of $TiO_2$ may recombine with the electrolyte. To obtain high performance DSCs, it is essential to retard the recombination. The charge recombination can be reduced by forming core-shell structure. In this work, we investigated the core-shell structure with $Al_2O_3$ and MgO coating layer on the porous $TiO_2$ layer. We confirmed the photovoltaic properties by I-V characteristics. The current and the efficiency was improved. In addition to, Through decrease in the width of EIS arc, which is the sum of the interfacial charge transfer resistances of both electrodes, we can be indicated that the block effect.

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참고문헌

  1. M. Gratzel, "Photoelectrochemical cells", Nature Vol. 414, pp. 338, 2001 https://doi.org/10.1038/35104607
  2. Michael Grätzel, "Dye-sensitized solar cells", J. Photochem. Photobio. C: Photochem. Rev., Vol. 4, pp. 145, 2003 https://doi.org/10.1016/S1389-5567(03)00026-1
  3. Hua Yu, Shanqing Zhang, Huijun Zhao, Geoffrey Will, Porun Liu, "An efficient and low-cost TiO2 compact layer for performance improvement of dye-sensitized solar cells", Electrochimica Acta, Vol. 1319-1324, pp. 607, 2009
  4. M. Gratzel, "A photovoltaic device structure based on internal electron emission", Nature, Vol. 421, pp. 6923, 2003
  5. Xin-tong Zhang, Irwan Sutanto, Taketo Taguchi, Kenichi Tokuhiro, "$Al_2O_3$-coated nanoporous $TiO_2$ electrode for solid-state dye-sensitized solar cell", Solar Energy Materials and Solar Cells, Vol. 80, pp. 315-326
  6. V.Ganapathy, B. Karunagaran, Shi-woo Rhee, "Improved performance of dye-sensitized solar cell with $TiO_2$/alumina core-shell formation using atomic layer deposition", Journal of Power Source, Vol 195, pp. 5138-5143, 2010 https://doi.org/10.1016/j.jpowsour.2010.01.085
  7. Jiangbin Xi, Naruhiko Masaki, Kejian Jiang and Shozo Yanagid, "Fabrication and characterization of thin $Nb_2O_5$ blocking layers for ionic liquid-based dye-sensitized solar cells", Trans. J. Photochem. Photobiol. A: Chem. pp 120-127, 2007