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

Research output: Contribution to journalArticle

37 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 languageEnglish
Article number3520
JournalScientific reports
Volume3
DOIs
Publication statusPublished - 2013 Dec 17

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Plastics
Crystals
Ionic Liquids
Electrodes
Solid electrolytes
Iodides
Ionic conductivity
Dye-sensitized solar cells
Electrolytes
Conversion efficiency
Salts
Doping (additives)
Temperature

All Science Journal Classification (ASJC) codes

  • General

Cite this

Hwang, Daesub ; Kim, Dong Young ; Jo, Seong Mu ; Armel, Vanessa ; MacFarlane, Douglas R. ; Kim, Dongho ; Jang, Sung Yeon. / Highly efficient plastic crystal ionic conductors for solid-state Dye-Sensitized solar cells. In: Scientific reports. 2013 ; Vol. 3.
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Highly efficient plastic crystal ionic conductors for solid-state Dye-Sensitized solar cells. / Hwang, Daesub; Kim, Dong Young; Jo, Seong Mu; Armel, Vanessa; MacFarlane, Douglas R.; Kim, Dongho; Jang, Sung Yeon.

In: Scientific reports, Vol. 3, 3520, 17.12.2013.

Research output: Contribution to journalArticle

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