期刊
SCIENTIFIC REPORTS
卷 3, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep03520
关键词
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资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) [2012045675]
- Ministry of Education, Science, and Technology
- Korea Research Council of Fundamental Science & Technology (KRCF)
- KIST for National Agenda Project (NAP) program
- KIST Institutional Programs [2E23900, 2K02120]
- Global Frontier R&D Program on Center for Multiscale Energy System
- National Research Foundation under the Ministry of Education, Science and Technology, Korea [2013-8-2018]
- Australian Research Council
- Australian Centre of Excellence in Electromaterials Science
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 (2-4 mScm(-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 TiO2 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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