CHED 190 |
| Electrochromic displays, where an electrochemical redox reaction changes the pixel state, do not need constant application of power. Such pixels have promise in electronic books where high contrast and low power consumption are important. Electrochemical reduction of a potassium ferricyanide and ferric chloride solution onto conducting glass to form a 100 nanometer thick layer of Prussian Blue was used to make an electrochromic pixel. This device was characterized by absorption spectroscopy, time response measurements, and cyclic voltammetry. This experiment is suitable for use in an introductory course and provides an interesting and high tech example of the importance of electrochemistry. |
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General Posters
7:30 PM-9:30 PM, Sunday, March 25, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Chemical Education |