CHED 195 |
| Electrogenerated chemiluminescence (ECL) is the emission of light from energetically excited chemical species using a potential applied to the surface of an electrode as the excitation source.1 Although ECL was first discovered in the late 1960's, it remains an active research area. New emitting species as well as new applications for this phenomenon are being discovered every year. One major application of ECL is its use in chemical sensors. Experimentation involved two major components: construction of the electrochemical cell and all equipment used in data collection, and detection of electrochemical and emission properties. Cyclic voltammetry was performed on all species to determine potentials necessary to form reactive species, spectroscopic measurements were taken for the systems to determine wavelength of emission, and set-up of data collection methods of light intensity were performed including potential sources and detectors. Research on the spectral characteristics of derivatives of 9-phenylanthracene has begun with the electrochemical study of these species moving into fluorescence and ECL emission spectroscopy. Excimers can form when the molecules are allowed to interact with one another in a face-to-face manner. The excimer is then the excvited species as opposed to one single molecule. These complexes can be detected by observing red shifts in the ECL emission spectrum. This has been the focus of current research and will continue into the future. |
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Undergraduate Research Poster Session
2:30 PM-4:30 PM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Chemical Education |