Improved performance of CdS and dye co-sensitized solar cell using a TiO2 sol-gel solution

Minkyu Son, Hyunwoong Seo, Soo Kyoung Kim, Songyi Park, Myeong Soo Jeong, Hee Je Kim

研究成果: ジャーナルへの寄稿学術誌査読

7 被引用数 (Scopus)

抄録

An interfacial layer (IL) between the CdS quantum dot (QD) and dye is necessary in the CdS-dye co-sensitized solar cell (CSC) to prevent the corrosion of CdS and the damage of electrolyte. In this study, the simple method of using a TiO2 sol-gel solution is suggested to fabricate the IL. An air exposure process after dipping into the TiO2 sol-gel solution facilitates formation of the anatase TiO2 thin film. To confirm the effect of TiO2 IL, the performance of CdS-dye CSC is analyzed and compared to the conventional CdS QD sensitized solar cell (QDSC). The formed TiO2 IL effectively prevents the corrosion of CdS and the damage of electrolyte. In addition, this suppresses the electron recombination from the CdS to the electrolyte, resulting in the enhanced electron transport at the TiO2/CdS QD-dye/electrolyte interface. As a result, the overall photovoltaic performance is much increased from 1.33% to 2.77%, compared to the conventional CdS QDSC.

本文言語英語
ページ(範囲)1726-1731
ページ数6
ジャーナルPhysica Status Solidi (A) Applications and Materials Science
211
8
DOI
出版ステータス出版済み - 1月 1 2014

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 表面および界面
  • 表面、皮膜および薄膜
  • 材料化学
  • 電子工学および電気工学

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