Highly efficient plastic crystal ionic conductors for solid-state Dye-Sensitized solar cells

Daesub Hwang; Dong Young Kim; Seong Mu Jo; Vanessa Armel; Douglas R. MacFarlane; Dongho Kim; Sung Yeon Jang

doi:10.1038/srep03520

Highly efficient plastic crystal ionic conductors for solid-state Dye-Sensitized solar cells

Daesub Hwang, Dong Young Kim, Seong Mu Jo, Vanessa Armel, Douglas R. MacFarlane, Dongho Kim, Sung Yeon Jang

Department of Chemistry

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

55 Citations (Scopus)

Abstract

We have developed highly efficient, ambient temperature, solid-state ionic conductors (SSICs) for dye-sensitized solar cells (DSSCs) by doping a molecular plastic crystal, succinonitrile (SN), with trialkyl-substituted imidazolium iodide salts. High performance SSICs with enhanced ionic conductivity (2-4mScm^-1) were obtained. High performance solid-state DSSCs with power conversion efficiency of 7.8% were fabricated using our SSICs combined with unique hierarchically nanostructured TiO 2 sphere (TiO₂-SP) photoelectrodes; these electrodes have significant macroporosity, which assists penetration of the solid electrolyte into the electrode. The performance of our solid-state DSSCs is, to the best of our knowledge, the highest reported thus far for cells using plastic crystal-based SSICs, and is comparable to that of the state-of-the-art DSSCs which use ionic liquid type electrolytes. This report provides a logical strategy for the development of efficient plastic crystal-based SSICs for DSSCs and other electrochemical devices.

Original language	English
Article number	3520
Journal	Scientific reports
Volume	3
DOIs	https://doi.org/10.1038/srep03520
Publication status	Published - 2013 Dec 17

Bibliographical note

Funding Information:
The authors gratefully acknowledge support from the Basic Science Research Program through the National Research Foundation of Korea (NRF, 2012045675), funded by the Ministry of Education, Science, and Technology, and the Korea Research Council of Fundamental Science & Technology (KRCF) and KIST for ‘‘National Agenda Project (NAP)’’ program (S.Y.J.), the KIST Institutional Programs (2E23900 and 2K02120) (D.Y.K.), and the Global Frontier R&D Program on Center for Multiscale Energy System, funded by the National Research Foundation under the Ministry of Education, Science and Technology, Korea (2013-8-2018) (D.K.). D.R.M. is grateful to the Australian Research Council for his Australian Laureate Fellowship and for funding from the Australian Centre of Excellence in Electromaterials Science.

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title = "Highly efficient plastic crystal ionic conductors for solid-state Dye-Sensitized solar cells",

abstract = "We have developed highly efficient, ambient temperature, solid-state ionic conductors (SSICs) for dye-sensitized solar cells (DSSCs) by doping a molecular plastic crystal, succinonitrile (SN), with trialkyl-substituted imidazolium iodide salts. High performance SSICs with enhanced ionic conductivity (2-4mScm-1) were obtained. High performance solid-state DSSCs with power conversion efficiency of 7.8% were fabricated using our SSICs combined with unique hierarchically nanostructured TiO 2 sphere (TiO2-SP) photoelectrodes; these electrodes have significant macroporosity, which assists penetration of the solid electrolyte into the electrode. The performance of our solid-state DSSCs is, to the best of our knowledge, the highest reported thus far for cells using plastic crystal-based SSICs, and is comparable to that of the state-of-the-art DSSCs which use ionic liquid type electrolytes. This report provides a logical strategy for the development of efficient plastic crystal-based SSICs for DSSCs and other electrochemical devices.",

author = "Daesub Hwang and Kim, {Dong Young} and Jo, {Seong Mu} and Vanessa Armel and MacFarlane, {Douglas R.} and Dongho Kim and Jang, {Sung Yeon}",

note = "Funding Information: The authors gratefully acknowledge support from the Basic Science Research Program through the National Research Foundation of Korea (NRF, 2012045675), funded by the Ministry of Education, Science, and Technology, and the Korea Research Council of Fundamental Science & Technology (KRCF) and KIST for {\textquoteleft}{\textquoteleft}National Agenda Project (NAP){\textquoteright}{\textquoteright} program (S.Y.J.), the KIST Institutional Programs (2E23900 and 2K02120) (D.Y.K.), and the Global Frontier R&D Program on Center for Multiscale Energy System, funded by the National Research Foundation under the Ministry of Education, Science and Technology, Korea (2013-8-2018) (D.K.). D.R.M. is grateful to the Australian Research Council for his Australian Laureate Fellowship and for funding from the Australian Centre of Excellence in Electromaterials Science.",

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AU - Kim, Dongho

AU - Jang, Sung Yeon

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N2 - We have developed highly efficient, ambient temperature, solid-state ionic conductors (SSICs) for dye-sensitized solar cells (DSSCs) by doping a molecular plastic crystal, succinonitrile (SN), with trialkyl-substituted imidazolium iodide salts. High performance SSICs with enhanced ionic conductivity (2-4mScm-1) were obtained. High performance solid-state DSSCs with power conversion efficiency of 7.8% were fabricated using our SSICs combined with unique hierarchically nanostructured TiO 2 sphere (TiO2-SP) photoelectrodes; these electrodes have significant macroporosity, which assists penetration of the solid electrolyte into the electrode. The performance of our solid-state DSSCs is, to the best of our knowledge, the highest reported thus far for cells using plastic crystal-based SSICs, and is comparable to that of the state-of-the-art DSSCs which use ionic liquid type electrolytes. This report provides a logical strategy for the development of efficient plastic crystal-based SSICs for DSSCs and other electrochemical devices.

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Highly efficient plastic crystal ionic conductors for solid-state Dye-Sensitized solar cells

Abstract

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