Fabrication of heterosensitizer-junction dye-sensitized solar cells

Hyung Jun Koo, Kyungkon Kim, Nam Gyu Park, Suyoung Hwang, Chanmoo Park, Chulhee Kim

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27 Scopus citations


We report here a dye-sensitized solar cell structure having two different dyes with complementary absorption properties, which is different from the dye-cocktail method. The developed method allows two different dyes to be adsorbed on the sintered Ti O2 layers without thermal decomposition, which the conventional procedure of dye-sensitized solar cell has been unable to do. The contribution of different dyes to photocurrent generation has been confirmed by incident-photon-to-current conversion efficiency (IPCE) and photocurrent transient spectroscopy. The heterosensitizer-junction type demonstrates higher IPCE than the single-sensitizer structure, thanks to complementary absorption characteristics.

Original languageEnglish
Article number142103
JournalApplied Physics Letters
Issue number14
StatePublished - 2008

Bibliographical note

Funding Information:
This work was supported in part by the KIST internal projects under Contract Nos. 2E20000 and 2E20010, and the MOCIE new and renewable energy R&D project under Contract No. 2006-N-PV12-P-05. The authors are grateful to Dr. A. J. Frank and Dr. J. van de Lagemaat (NREL, USA) for their valuable discussion.


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