Nanostructured photoelectrode consisting of TiO2 hollow spheres for non-volatile electrolyte-based dye-sensitized solar cells

Jong Hyuk Park, Sun Young Jung, Raehyun Kim, Nam Gyu Park, Junkyung Kim, Sang Soo Lee

    Research output: Contribution to journalArticlepeer-review

    55 Citations (Scopus)

    Abstract

    A photoelectrode consisting of titania hollow spheres for dye-sensitized solar cells (DSSCs) is prepared by a paste method and the effect of the nanostructure on the performance of DSSCs with non-volatile electrolytes is investigated. The structure of the hollow sphere (HS) electrode with a large pore size and a high porosity allows highly viscous non-volatile electrolytes to penetrate the electrode thoroughly. Furthermore, its outstanding light-harvesting efficiency and long electron diffusion length make the efficiency of the DSSCs with the HS electrode comparable with those of a conventional nanocrystalline electrode, in spite of the smaller amount of the adsorbed dye, when oligomer electrolytes are used. The results show that the structure of a photoelectrode highly improves the performance of the device and the HS electrode is an effective structure for the use of non-volatile electrolytes in DSSCs.

    Original languageEnglish
    Pages (from-to)574-579
    Number of pages6
    JournalJournal of Power Sources
    Volume194
    Issue number1
    DOIs
    Publication statusPublished - 2009 Oct 20

    Keywords

    • Dye-sensitized solar cell
    • Electron diffusion
    • Hollow sphere
    • Light-harvesting
    • Non-volatile electrolyte

    ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • Energy Engineering and Power Technology
    • Physical and Theoretical Chemistry
    • Electrical and Electronic Engineering

    Fingerprint

    Dive into the research topics of 'Nanostructured photoelectrode consisting of TiO2 hollow spheres for non-volatile electrolyte-based dye-sensitized solar cells'. Together they form a unique fingerprint.

    Cite this