Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Fabrication and Characterization of Dye-Sensitized Solar Cells Based on Rhodamine Dyes

로다민 기반 염료감응형 태양전지의 제조 및 특성 분석

  • Choi, Kang-Hoon (Department of Chemistry, The Catholic University of Korea) ;
  • Jung, Hye-In (Department of Chemistry, The Catholic University of Korea) ;
  • An, Byeong-Kwan (Department of Chemistry, The Catholic University of Korea)
  • Received : 2015.10.19
  • Accepted : 2015.10.24
  • Published : 2015.11.01
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Abstract

Rhodamine B (RhB) was utilized as a dye sensitizer for dye-sensitized solar cells (DSSCs) and its photovoltaic property was examined under the illumination of AM 1.5 G, $100mWcm^{-2}$. DSSCs based on RhB exhibited typical photovoltaic properties with an open-circuit voltage ($V_{OC}$) of 0.34 V, a short-circuit current ($J_{SC}$) of $1.55mA{\cdot}cm^{-2}$, a fill factor (FF) of 50%, and a conversion efficiency (PCE) of 0.26%. In order to further improve the photovoltaic properties of RhB-based DSSCs, the effect of (i) incorporating a strong electron-donating NCS unit into the RhB molecular backbone, (ii) combining a bis-negatively charged zinc complex anion ($Zn-dmit_2$, dmit=di-mercapto-dithiol-thione) with the amine cation of RhB, (iii) co-adsorbing RhB dyes with chenodeoxycholic acid (CDCA) molecules onto porous $TiO_2$ electrodes, was investigated and discussed.

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