The Deduction of the Optimal Length to Width Ratio of Dye-sensitized Solar Cell and the Fabrication of a Module

가로-세로 비율에 따른 염료감응형 태양전지의 최적 조건 도출 및 모듈 제조

  • 김희제 (부산대학 전자전기공학과) ;
  • 박성준 (부산대학 전자전기공학과) ;
  • 최진영 (부산대학 전자전기공학과) ;
  • 서현웅 (부산대학 전자전기공학과) ;
  • 김미정 (부산대학 전자전기공학과) ;
  • 이경준 (부산대학 전자전기공학과) ;
  • 손민규 (부산대학 전자전기공학과)
  • Published : 2009.01.01

Abstract

A novel 8 V DC power source with an external series-parallel connection of 50 Dye-sensitized Solar Cells (DSCs) has been proposed. One DSC has the optimized length to width ratio of $5.2{\times}2.6\;cm$ and an active area $8\;cm^2$ ($4.62{\times}1.73\;cm$) which attained a conversion efficiency of 4.02%. From the electrochemical impedance spectroscopic analysis, it was found that the resistance elements related to the Pt electrode and electrolyte interface behave like that of diode and the series resistance corresponds to the sum of the other resistance elements. Surface morphology and sheet resistance of Pt counter electrode did not degrade the performance of the cell. This novel 8V-0.33A DC power source shows stable performance with an energy conversion efficiency of 4.24% under 1 sun illumination (AM 1.5, Pin of $100\;mW/cm^2$).

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