Dye-sensitized solar cells based on crosslinked poly(ethylene glycol) electrolytes

Moon Sung Kang; Jong Hak Kim; Jongok Won; Yong Soo Kang

doi:10.1016/j.jphotochem.2006.02.013

Dye-sensitized solar cells based on crosslinked poly(ethylene glycol) electrolytes

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

Department of Chemical and Biomolecular Engineering

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

64 Citations (Scopus)

Abstract

The high-energy conversion efficiency in solid-state dye-sensitized solar cells (SDSCs) has been achieved by both the better interfacial contact between solid polymer medium and dye molecules and the higher ionic conductivity of polymer electrolyte. Low molecular weight poly(ethylene glycol) (oligo-PEG, M_w = 1000) has been used for the deeper penetration of electrolyte into nanoporous TiO₂ layer and consequently the better interfacial contact, followed by crosslinking terminal -OH groups of oligo-PEG with bifunctional glutaraldehyde. The ionic conductivity for the crosslinked oligo-PEG electrolytes is in the range of 10^-5 to 10^-3 S cm^-1 at room temperature, which is high enough for solar cell applications and is presumably due to the increased intersegmental distance with an addition of the crosslinker as confirmed by WAXS analysis. The best result of the SDSCs is the short circuit current (J_sc) of 9.48 mA cm^-2, the open circuit voltage (V_oc) of 0.64 V, the fill factor (ff) of 0.60 and the overall energy conversion efficiency (η) of 3.64% at 100 mW cm^-2 (AM 1.5).

Original language	English
Pages (from-to)	15-21
Number of pages	7
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	183
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jphotochem.2006.02.013
Publication status	Published - 2006 Sept 30

All Science Journal Classification (ASJC) codes

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

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10.1016/j.jphotochem.2006.02.013

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title = "Dye-sensitized solar cells based on crosslinked poly(ethylene glycol) electrolytes",

abstract = "The high-energy conversion efficiency in solid-state dye-sensitized solar cells (SDSCs) has been achieved by both the better interfacial contact between solid polymer medium and dye molecules and the higher ionic conductivity of polymer electrolyte. Low molecular weight poly(ethylene glycol) (oligo-PEG, Mw = 1000) has been used for the deeper penetration of electrolyte into nanoporous TiO2 layer and consequently the better interfacial contact, followed by crosslinking terminal -OH groups of oligo-PEG with bifunctional glutaraldehyde. The ionic conductivity for the crosslinked oligo-PEG electrolytes is in the range of 10-5 to 10-3 S cm-1 at room temperature, which is high enough for solar cell applications and is presumably due to the increased intersegmental distance with an addition of the crosslinker as confirmed by WAXS analysis. The best result of the SDSCs is the short circuit current (Jsc) of 9.48 mA cm-2, the open circuit voltage (Voc) of 0.64 V, the fill factor (ff) of 0.60 and the overall energy conversion efficiency (η) of 3.64% at 100 mW cm-2 (AM 1.5).",

author = "Kang, {Moon Sung} and Kim, {Jong Hak} and Jongok Won and Kang, {Yong Soo}",

year = "2006",

month = sep,

day = "30",

doi = "10.1016/j.jphotochem.2006.02.013",

language = "English",

volume = "183",

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journal = "Journal of Photochemistry and Photobiology A: Chemistry",

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T1 - Dye-sensitized solar cells based on crosslinked poly(ethylene glycol) electrolytes

AU - Kang, Moon Sung

AU - Kim, Jong Hak

AU - Won, Jongok

AU - Kang, Yong Soo

PY - 2006/9/30

Y1 - 2006/9/30

N2 - The high-energy conversion efficiency in solid-state dye-sensitized solar cells (SDSCs) has been achieved by both the better interfacial contact between solid polymer medium and dye molecules and the higher ionic conductivity of polymer electrolyte. Low molecular weight poly(ethylene glycol) (oligo-PEG, Mw = 1000) has been used for the deeper penetration of electrolyte into nanoporous TiO2 layer and consequently the better interfacial contact, followed by crosslinking terminal -OH groups of oligo-PEG with bifunctional glutaraldehyde. The ionic conductivity for the crosslinked oligo-PEG electrolytes is in the range of 10-5 to 10-3 S cm-1 at room temperature, which is high enough for solar cell applications and is presumably due to the increased intersegmental distance with an addition of the crosslinker as confirmed by WAXS analysis. The best result of the SDSCs is the short circuit current (Jsc) of 9.48 mA cm-2, the open circuit voltage (Voc) of 0.64 V, the fill factor (ff) of 0.60 and the overall energy conversion efficiency (η) of 3.64% at 100 mW cm-2 (AM 1.5).

AB - The high-energy conversion efficiency in solid-state dye-sensitized solar cells (SDSCs) has been achieved by both the better interfacial contact between solid polymer medium and dye molecules and the higher ionic conductivity of polymer electrolyte. Low molecular weight poly(ethylene glycol) (oligo-PEG, Mw = 1000) has been used for the deeper penetration of electrolyte into nanoporous TiO2 layer and consequently the better interfacial contact, followed by crosslinking terminal -OH groups of oligo-PEG with bifunctional glutaraldehyde. The ionic conductivity for the crosslinked oligo-PEG electrolytes is in the range of 10-5 to 10-3 S cm-1 at room temperature, which is high enough for solar cell applications and is presumably due to the increased intersegmental distance with an addition of the crosslinker as confirmed by WAXS analysis. The best result of the SDSCs is the short circuit current (Jsc) of 9.48 mA cm-2, the open circuit voltage (Voc) of 0.64 V, the fill factor (ff) of 0.60 and the overall energy conversion efficiency (η) of 3.64% at 100 mW cm-2 (AM 1.5).

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Dye-sensitized solar cells based on crosslinked poly(ethylene glycol) electrolytes

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