An Efficient Dye-Sensitized Solar Cell with an Organic Sensitizer Encapsulated in a Cyclodextrin Cavity


  • This work was supported by the Korea Science and Engineering Foundation (KOSEF) through the National Research Lab. Program funded by the Ministry of Science and Technology (no. R0A-2005-000-10034-0) and WCU (the Ministry of Education and Science) Program (no. R31-2008-000-10035-0) and ERC (the Korean government(MEST)) Program (no. R11-2009-088-02001-0). Computations were performed using a supercomputer of the Korea Institute of Science and Technology Information under grant KSC-2008-S03-0008.


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Dying to get inside: Charge recombination is retarded and dye aggregation is prevented in solar cells that contain the JK-2 dye encapsulated in a cyclodextrin (CD) cavity (see picture). The β-CD/JK-2 device with a polymer gel electrolyte gave an overall conversion efficiency of 7.40 %, which is the highest value reported to date for DSSCs based on the organic sensitizers, and showed excellent stability.