Analyses of the output characteristics and the internal impedance of dye-sensitized solar cell according to the fabrication of the blocking layer

Jin Kyoung Kim, Min Kyu Son, Soo Kyoung Kim, Na Yeong Hong, Byung Man Kim, Prabarkar, Hee Je Kim

Research output: Contribution to journalArticle

Abstract

DSCs are based on a dye-adsorbed porous TiO2 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 TiO2 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 Al2O3 and MgO coating layer on the porous TiO2 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.

Original languageEnglish
Pages (from-to)85-88
Number of pages4
JournalTransactions of the Korean Institute of Electrical Engineers
Volume61
Issue number1
DOIs
Publication statusPublished - Jan 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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