Poly(butyl acrylate)/NaI/I 2 electrolytes for dye-sensitized nanocrystalline TiO 2 solar cells

Jong Hak Kim, Moon Sung Kang, Young Jin Kim, Jongok Won, Yong Soo Kang

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

Solid polymer electrolytes consisting of NaI and I 2 dissolved in poly(butyl acrylate) (PBA, M w=99,000 g/mol) were prepared and applied to dye-sensitized solar cells (DSSC). Upon incorporation of salt, the free ester carbonyl stretching bands of PBA in FT-IR spectra shift to a lower wave number, confirming the complex formation between sodium ions and carbonyl oxygens. Coordinative interactions and structural changes of the PBA/NaI/I 2 electrolytes have been also characterized by X-ray photoelectron spectroscopy (XPS), wide angle X-ray scattering (WAXS) and differential scanning calorimetry (DSC). The conversion efficiency of DSSC employing PBA/NaI/I 2 electrolytes (1.66% at 10 mW/cm 2) is unexpectedly much higher than that employing poly(ethylene oxide) (PEO, M w=1,000,000 g/mol)/NaI/I 2 (0.07%), although the ionic conductivity of the former (2.1×10 -6 S/cm at room temperature) is not greatly different from that of the latter (1.6×10 -6 S/cm). The significantly improved solar cell performance is mostly attributed to (1) the easier penetration of PBA through TiO 2 nanoporous layer due to its lower molecular weight, and (2) the sticky property of PBA to allow a better adhesion with the electrodes.

Original languageEnglish
Pages (from-to)579-584
Number of pages6
JournalSolid State Ionics
Volume176
Issue number5-6
DOIs
Publication statusPublished - 2005 Feb 14

Fingerprint

acrylates
Electrolytes
Solar cells
Coloring Agents
Dyes
solar cells
dyes
electrolytes
Polyethylene oxides
Ionic conductivity
low molecular weights
ethylene oxide
X ray scattering
ion currents
Conversion efficiency
Stretching
esters
Differential scanning calorimetry
Esters
Polymers

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Kim, Jong Hak ; Kang, Moon Sung ; Kim, Young Jin ; Won, Jongok ; Kang, Yong Soo. / Poly(butyl acrylate)/NaI/I 2 electrolytes for dye-sensitized nanocrystalline TiO 2 solar cells. In: Solid State Ionics. 2005 ; Vol. 176, No. 5-6. pp. 579-584.
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abstract = "Solid polymer electrolytes consisting of NaI and I 2 dissolved in poly(butyl acrylate) (PBA, M w=99,000 g/mol) were prepared and applied to dye-sensitized solar cells (DSSC). Upon incorporation of salt, the free ester carbonyl stretching bands of PBA in FT-IR spectra shift to a lower wave number, confirming the complex formation between sodium ions and carbonyl oxygens. Coordinative interactions and structural changes of the PBA/NaI/I 2 electrolytes have been also characterized by X-ray photoelectron spectroscopy (XPS), wide angle X-ray scattering (WAXS) and differential scanning calorimetry (DSC). The conversion efficiency of DSSC employing PBA/NaI/I 2 electrolytes (1.66{\%} at 10 mW/cm 2) is unexpectedly much higher than that employing poly(ethylene oxide) (PEO, M w=1,000,000 g/mol)/NaI/I 2 (0.07{\%}), although the ionic conductivity of the former (2.1×10 -6 S/cm at room temperature) is not greatly different from that of the latter (1.6×10 -6 S/cm). The significantly improved solar cell performance is mostly attributed to (1) the easier penetration of PBA through TiO 2 nanoporous layer due to its lower molecular weight, and (2) the sticky property of PBA to allow a better adhesion with the electrodes.",
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Poly(butyl acrylate)/NaI/I 2 electrolytes for dye-sensitized nanocrystalline TiO 2 solar cells. / Kim, Jong Hak; Kang, Moon Sung; Kim, Young Jin; Won, Jongok; Kang, Yong Soo.

In: Solid State Ionics, Vol. 176, No. 5-6, 14.02.2005, p. 579-584.

Research output: Contribution to journalArticle

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T1 - Poly(butyl acrylate)/NaI/I 2 electrolytes for dye-sensitized nanocrystalline TiO 2 solar cells

AU - Kim, Jong Hak

AU - Kang, Moon Sung

AU - Kim, Young Jin

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