Electro-fluorescence switching of bis-imidazolium ionic liquids
| Autor: | Jeong-Rang Kim, Yun Kwon Kim, Teayeop Kim, Kwang-Duk Ahn, Eunkyoung Kim, Wooseop Lee |
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| Rok vydání: | 2008 |
| Předmět: |
Optics and Photonics
Materials science Ultraviolet Rays Inorganic chemistry Biomedical Engineering Ionic Liquids Bioengineering Electrochemistry Fluorescence Polyethylene Glycols chemistry.chemical_compound Ionic conductivity Molecule General Materials Science Benzyl Viologen Organic Chemicals Fluorescent Dyes Ions Imidazoles Temperature General Chemistry Condensed Matter Physics chemistry Models Chemical Spectrophotometry Ionic liquid Electrode Salts Excitation Electrochemical window |
| Zdroj: | Journal of nanoscience and nanotechnology. 8(9) |
| ISSN: | 1533-4880 |
| Popis: | Room-temperature ionic liquids (RTILs) containing bis-imidazolium salts were explored to control their optical properties of them in an organic device. The neat bis-imidazolium salts showed ionic conductivity of 3.5 × 10−4 S/cm at room-temperature and the electrochemical window was exhibited within ±2.5 V in a two electrode cell. The bis-imidazolium salts were transparent yellow and showed fluorescence upon excitation with light in the range of 360 to 500 nm. A two electrode organic ionic liquid cell was fabricated using a mixture of PEO200BIm-TFSI and electroactive molecules to control the emission property of the ionic liquid by electrochemical methods. The first example of the ionic liquid containing electro-fluorescence switch was explored with an electroactive benzyl viologen (BzV) blend of bis-imidazolium ionic liquid. |
| Databáze: | OpenAIRE |
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