Long-term Stability of Conducting Polymers in Iodine/iodide Electrolytes: Beyond Conventional Platinum Catalysts

Sung June Kim; Jeong Kwon; Jae Keun Nam; Wanjung Kim; Jong Hyeok Park

doi:10.1016/j.electacta.2016.12.134

Long-term Stability of Conducting Polymers in Iodine/iodide Electrolytes: Beyond Conventional Platinum Catalysts

Sung June Kim, Jeong Kwon, Jae Keun Nam, Wanjung Kim, Jong Hyeok Park

Department of Chemical and Biomolecular Engineering

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

9 Citations (Scopus)

Abstract

One of the primary obstacles to the commercialization of dye-sensitized solar cells (DSSCs) is the improvement of their long-term stability. Here, we report greatly improved long-term stability of DSSCs, which have PEDOT:FTS polymer as a counter electrode. DSSCs with this PEDOT:FTS film demonstrate slightly lower power conversion efficiency of 8.1% under standard conditions (AM 1.5 G, 100 mWcm⁻²) compared to the ∼9.1% efficiency of Pt, using an electrolyte with iodine/iodide, which is the most popular redox shuttle. However, we demonstrate that this conducting polymer counter electrode facilitates the fabrication of solar cells with greatly improved long-term stability compared to Pt-based ones after exposure to electrolyte soaking conditions. Various electrochemical analyses were performed to evaluate the enhanced durability of PEDOT:FTS polymer in the highly corrosive iodine/iodide electrolyte under a continuous redox reaction condition.

Original language	English
Pages (from-to)	95-100
Number of pages	6
Journal	Electrochimica Acta
Volume	227
DOIs	https://doi.org/10.1016/j.electacta.2016.12.134
Publication status	Published - 2017 Feb 10

Bibliographical note

Funding Information:
Sung June Kim, Jeong Kwon contributed to this work equally. This work was supported by the NRF of Korea Grant funded by the Ministry of Science, ICT & Future Planning (2014M3A7B4051747, 2014M3A7B4052200).

Publisher Copyright:
© 2016 Elsevier Ltd

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Electrochemistry

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10.1016/j.electacta.2016.12.134

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title = "Long-term Stability of Conducting Polymers in Iodine/iodide Electrolytes: Beyond Conventional Platinum Catalysts",

abstract = "One of the primary obstacles to the commercialization of dye-sensitized solar cells (DSSCs) is the improvement of their long-term stability. Here, we report greatly improved long-term stability of DSSCs, which have PEDOT:FTS polymer as a counter electrode. DSSCs with this PEDOT:FTS film demonstrate slightly lower power conversion efficiency of 8.1% under standard conditions (AM 1.5 G, 100 mWcm−2) compared to the ∼9.1% efficiency of Pt, using an electrolyte with iodine/iodide, which is the most popular redox shuttle. However, we demonstrate that this conducting polymer counter electrode facilitates the fabrication of solar cells with greatly improved long-term stability compared to Pt-based ones after exposure to electrolyte soaking conditions. Various electrochemical analyses were performed to evaluate the enhanced durability of PEDOT:FTS polymer in the highly corrosive iodine/iodide electrolyte under a continuous redox reaction condition.",

author = "Kim, {Sung June} and Jeong Kwon and Nam, {Jae Keun} and Wanjung Kim and Park, {Jong Hyeok}",

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AU - Kwon, Jeong

AU - Nam, Jae Keun

AU - Kim, Wanjung

AU - Park, Jong Hyeok

N1 - Funding Information: Sung June Kim, Jeong Kwon contributed to this work equally. This work was supported by the NRF of Korea Grant funded by the Ministry of Science, ICT & Future Planning (2014M3A7B4051747, 2014M3A7B4052200). Publisher Copyright: © 2016 Elsevier Ltd

PY - 2017/2/10

Y1 - 2017/2/10

N2 - One of the primary obstacles to the commercialization of dye-sensitized solar cells (DSSCs) is the improvement of their long-term stability. Here, we report greatly improved long-term stability of DSSCs, which have PEDOT:FTS polymer as a counter electrode. DSSCs with this PEDOT:FTS film demonstrate slightly lower power conversion efficiency of 8.1% under standard conditions (AM 1.5 G, 100 mWcm−2) compared to the ∼9.1% efficiency of Pt, using an electrolyte with iodine/iodide, which is the most popular redox shuttle. However, we demonstrate that this conducting polymer counter electrode facilitates the fabrication of solar cells with greatly improved long-term stability compared to Pt-based ones after exposure to electrolyte soaking conditions. Various electrochemical analyses were performed to evaluate the enhanced durability of PEDOT:FTS polymer in the highly corrosive iodine/iodide electrolyte under a continuous redox reaction condition.

AB - One of the primary obstacles to the commercialization of dye-sensitized solar cells (DSSCs) is the improvement of their long-term stability. Here, we report greatly improved long-term stability of DSSCs, which have PEDOT:FTS polymer as a counter electrode. DSSCs with this PEDOT:FTS film demonstrate slightly lower power conversion efficiency of 8.1% under standard conditions (AM 1.5 G, 100 mWcm−2) compared to the ∼9.1% efficiency of Pt, using an electrolyte with iodine/iodide, which is the most popular redox shuttle. However, we demonstrate that this conducting polymer counter electrode facilitates the fabrication of solar cells with greatly improved long-term stability compared to Pt-based ones after exposure to electrolyte soaking conditions. Various electrochemical analyses were performed to evaluate the enhanced durability of PEDOT:FTS polymer in the highly corrosive iodine/iodide electrolyte under a continuous redox reaction condition.

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Long-term Stability of Conducting Polymers in Iodine/iodide Electrolytes: Beyond Conventional Platinum Catalysts

Abstract

Bibliographical note

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