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Photoelectrochemistry and electroluminescence : experimental and multimedia development of a new topic for teaching

Hotspots with particularly relevant contents for "Chemistry with Light" can be found in this thesis on the following pages with the respective contents :

  • p. 8 to p. 21: titanium dioxide as photocatalyst and photoelectrode
  • p. 24 to p. 28: sensitization of the photoelectrode
  • p. 28 to p. 37: light to power: different cell types
  • p. 37 to p. 66: Experiments on photoelectrochemical and photogalvanic cells
  • p. 67 to p. 88: Power to light: electroluminescence and electrochemiluminescence
  • p. 93 to p. 109: Basic concept: ground state and electronically excited state
  • p. 109 to p. 150: multimedia components and didactic concepts

Get the thesis (in German): urn:nbn:de:hbz:464-duett-04042003-1354495

Abstract

Photoelectrochemistry and electroluminescence - opening an new scientific field for the teaching of chemistry. Following the description of the current state of knowledge in the field of photoelectrochemistry and electroluminescence in this thesis own scientific investigations and new results concerning photogalvanic, photoelectrochemical and electrochemoluminescence cells and the parameters determining their efficiency are described. Several experiments such as the "photogalvanic 2-pot-cell", the "photogalvanic 1-pot-cell", the "photoelectrochemical cell" and the "glowing razor foil" have been developed on the basis of these results. As visualising means and a support of the experiments seven multimedia-modules have been designed and programmed. The experiments and materials were embedded in a didactic concept that is based on the paradigm of the ground state and electric excited state of matter. Within this concept two teaching units ("from galvanic cells to solar cells" and "from electolysis to LEDs") were developed and explained step by step.