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

doi:10.1016/j.jphotochem.2007.08.001

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

KU-KIST Graduate School of Converging Science and Technology

Research output: Contribution to journal › Article › peer-review

7 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 language	English
Pages (from-to)	148-151
Number of pages	4
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	194
Issue number	2-3
DOIs	https://doi.org/10.1016/j.jphotochem.2007.08.001
Publication status	Published - 2008 Feb 20

Keywords

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

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Physics and Astronomy(all)

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10.1016/j.jphotochem.2007.08.001

Cite this

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

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.",

keywords = "Dye-sensitized solar cell, Ionic diffusion, Non-volatile electrolyte, Poly(ethylene glycol)",

author = "Park, {Jong Hyuk} and Yum, {Jun Ho} and Kim, {Sun Young} and Kang, {Moon Sung} and Lee, {Yong Gun} and Lee, {Sang Soo} and Kang, {Yong Soo}",

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T1 - Influence of salts on ionic diffusion in oligomer electrolytes and its implication in dye-sensitized solar cells

AU - Park, Jong Hyuk

AU - Yum, Jun Ho

AU - Kim, Sun Young

AU - Kang, Moon Sung

AU - Lee, Yong Gun

AU - Lee, Sang Soo

AU - Kang, Yong Soo

PY - 2008/2/20

Y1 - 2008/2/20

N2 - 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.

AB - 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.

KW - Dye-sensitized solar cell

KW - Ionic diffusion

KW - Non-volatile electrolyte

KW - Poly(ethylene glycol)

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U2 - 10.1016/j.jphotochem.2007.08.001

DO - 10.1016/j.jphotochem.2007.08.001

M3 - Article

AN - SCOPUS:38749115855

SN - 1010-6030

VL - 194

SP - 148

EP - 151

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

IS - 2-3

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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