Influence of salts on ionic diffusion in oligomer electrolytes and its implication in dye-sensitized solar cells

Jong Hyuk Park, Jun Ho Yum, Sun Young Kim, Moon Sung Kang, Yong Gun Lee, Sang Soo Lee, Yong Soo Kang

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)

    Abstract

    The diffusion coefficients of I- and I3- in poly(ethylene glycol) (PEG) oligomer electrolytes as a function of salt type and salt concentration were measured. It was found that the diffusion coefficient of I3- in PEG oligomer electrolytes with potassium iodide (KI) was much lower than that with imidazolium iodide (MPII) because of the difference in the interactions of polar oxygen atoms in the PEG oligomer with K+ or MPI+. In addition, it was also confirmed that this phenomenon affected the recombination process, electron lifetime and consequently, the performance of the DSSCs.

    Original languageEnglish
    Pages (from-to)148-151
    Number of pages4
    JournalJournal of Photochemistry and Photobiology A: Chemistry
    Volume194
    Issue number2-3
    DOIs
    Publication statusPublished - 2008 Feb 20

    Keywords

    • Dye-sensitized solar cell
    • Ionic diffusion
    • Non-volatile electrolyte
    • Poly(ethylene glycol)

    ASJC Scopus subject areas

    • General Chemistry
    • General Chemical Engineering
    • General Physics and Astronomy

    Fingerprint

    Dive into the research topics of 'Influence of salts on ionic diffusion in oligomer electrolytes and its implication in dye-sensitized solar cells'. Together they form a unique fingerprint.

    Cite this