Rubbery copolymer electrolytes containing polymerized ionic liquid for dye-sensitized solar cells

Won Seok Chi; Sung Hoon Ahn; Harim Jeon; Yong Gun Shul; Jong Hak Kim

doi:10.1007/s10008-012-1738-z

Rubbery copolymer electrolytes containing polymerized ionic liquid for dye-sensitized solar cells

Won Seok Chi, Sung Hoon Ahn, Harim Jeon, Yong Gun Shul, Jong Hak Kim

Department of Chemical and Biomolecular Engineering

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

23 Citations (Scopus)

Abstract

A novel type of random copolymer comprised of a polymerized ionic liquid, poly(1-((4-ethenylphenyl)methyl)-3-butyl-imidazolium iodide) (PEBII), and amorphous rubbery poly(oxyethylene methacrylate) (POEM) was synthesized and employed as a solid electrolyte in an I2-free dye-sensitized solar cell (DSSC). The copolymer electrolytes deeply infiltrated into the nanopores of mesoporous TiO ₂ films, resulting in improved interfacial contact of electrode/electrolyte. The glass transition temperature (T _g) of the PEBII-POEM(-23 °C) was lower than that of PEBII homopolymer (-4 °C), indicating greater chain flexibility in the former. However, the DSSC efficiency of PEBII-POEM (4.5 % at 100 mW/cm2) was lower than that of PEBII (5.9 %), indicating that ion concentration is more important than chain flexibility. Interestingly, upon the introduction of ionic liquid, i.e., 1-methyl-3 propylimidazolium iodide, the efficiency of PEBII remained almost constant (5.8 %), whereas that of PEBII-POEM was significantly improved up to 7.0 % due to increased I ^- ion concentration, which is one of the highest values for I ₂-free DSSCs.

Original language	English
Pages (from-to)	3037-3043
Number of pages	7
Journal	Journal of Solid State Electrochemistry
Volume	16
Issue number	9
DOIs	https://doi.org/10.1007/s10008-012-1738-z
Publication status	Published - 2012 Sep

Bibliographical note

Funding Information:
This work was supported by the Ministry of Knowledge Economy through the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) (20104010100500) and by the New & Renewable Energy R&D program (2009T100100606). This work was also supported by the Ministry of Knowledge Economy (MKE) and Korea Institute for Advancement in Technology (KIAT) through the Workforce Development Program in Strategic Technology.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Electrochemistry
Electrical and Electronic Engineering

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10.1007/s10008-012-1738-z

Cite this

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title = "Rubbery copolymer electrolytes containing polymerized ionic liquid for dye-sensitized solar cells",

abstract = "A novel type of random copolymer comprised of a polymerized ionic liquid, poly(1-((4-ethenylphenyl)methyl)-3-butyl-imidazolium iodide) (PEBII), and amorphous rubbery poly(oxyethylene methacrylate) (POEM) was synthesized and employed as a solid electrolyte in an I2-free dye-sensitized solar cell (DSSC). The copolymer electrolytes deeply infiltrated into the nanopores of mesoporous TiO 2 films, resulting in improved interfacial contact of electrode/electrolyte. The glass transition temperature (T g) of the PEBII-POEM(-23 °C) was lower than that of PEBII homopolymer (-4 °C), indicating greater chain flexibility in the former. However, the DSSC efficiency of PEBII-POEM (4.5 % at 100 mW/cm2) was lower than that of PEBII (5.9 %), indicating that ion concentration is more important than chain flexibility. Interestingly, upon the introduction of ionic liquid, i.e., 1-methyl-3 propylimidazolium iodide, the efficiency of PEBII remained almost constant (5.8 %), whereas that of PEBII-POEM was significantly improved up to 7.0 % due to increased I - ion concentration, which is one of the highest values for I 2-free DSSCs.",

author = "Chi, {Won Seok} and Ahn, {Sung Hoon} and Harim Jeon and Shul, {Yong Gun} and Kim, {Jong Hak}",

note = "Funding Information: This work was supported by the Ministry of Knowledge Economy through the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) (20104010100500) and by the New & Renewable Energy R&D program (2009T100100606). This work was also supported by the Ministry of Knowledge Economy (MKE) and Korea Institute for Advancement in Technology (KIAT) through the Workforce Development Program in Strategic Technology.",

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AU - Jeon, Harim

AU - Shul, Yong Gun

AU - Kim, Jong Hak

N1 - Funding Information: This work was supported by the Ministry of Knowledge Economy through the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) (20104010100500) and by the New & Renewable Energy R&D program (2009T100100606). This work was also supported by the Ministry of Knowledge Economy (MKE) and Korea Institute for Advancement in Technology (KIAT) through the Workforce Development Program in Strategic Technology.

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N2 - A novel type of random copolymer comprised of a polymerized ionic liquid, poly(1-((4-ethenylphenyl)methyl)-3-butyl-imidazolium iodide) (PEBII), and amorphous rubbery poly(oxyethylene methacrylate) (POEM) was synthesized and employed as a solid electrolyte in an I2-free dye-sensitized solar cell (DSSC). The copolymer electrolytes deeply infiltrated into the nanopores of mesoporous TiO 2 films, resulting in improved interfacial contact of electrode/electrolyte. The glass transition temperature (T g) of the PEBII-POEM(-23 °C) was lower than that of PEBII homopolymer (-4 °C), indicating greater chain flexibility in the former. However, the DSSC efficiency of PEBII-POEM (4.5 % at 100 mW/cm2) was lower than that of PEBII (5.9 %), indicating that ion concentration is more important than chain flexibility. Interestingly, upon the introduction of ionic liquid, i.e., 1-methyl-3 propylimidazolium iodide, the efficiency of PEBII remained almost constant (5.8 %), whereas that of PEBII-POEM was significantly improved up to 7.0 % due to increased I - ion concentration, which is one of the highest values for I 2-free DSSCs.

AB - A novel type of random copolymer comprised of a polymerized ionic liquid, poly(1-((4-ethenylphenyl)methyl)-3-butyl-imidazolium iodide) (PEBII), and amorphous rubbery poly(oxyethylene methacrylate) (POEM) was synthesized and employed as a solid electrolyte in an I2-free dye-sensitized solar cell (DSSC). The copolymer electrolytes deeply infiltrated into the nanopores of mesoporous TiO 2 films, resulting in improved interfacial contact of electrode/electrolyte. The glass transition temperature (T g) of the PEBII-POEM(-23 °C) was lower than that of PEBII homopolymer (-4 °C), indicating greater chain flexibility in the former. However, the DSSC efficiency of PEBII-POEM (4.5 % at 100 mW/cm2) was lower than that of PEBII (5.9 %), indicating that ion concentration is more important than chain flexibility. Interestingly, upon the introduction of ionic liquid, i.e., 1-methyl-3 propylimidazolium iodide, the efficiency of PEBII remained almost constant (5.8 %), whereas that of PEBII-POEM was significantly improved up to 7.0 % due to increased I - ion concentration, which is one of the highest values for I 2-free DSSCs.

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Rubbery copolymer electrolytes containing polymerized ionic liquid for dye-sensitized solar cells

Abstract

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