School of Mathematics and Natural Sciences

Introductory Videos to the topic of Light

What is light, and how can the smallest packages of this energy be visualized?

Education for sustainable development

Some experiments that show how current problems can be solved in order to achieve sustainable development.

Fluorescence, Phosphorescence, Chemiluminescence

Fluorescence, Phosphorescence, Chemiluminescence are types of luminescence. In each of these processes, light is emitted: For Flurescence and Phosphorescence after the absorption of light. For the chemiluminescence as the result of a chemical reaction.

Photochromism, Solvatochromism, Photosteady State

Photochromism describes the change of color of a substance when irradiated with light.

If the color of a substance is determined by the solvant used, then this is called Solvatochromism.

The Photosteady State is a chemical equilibrium that is created and sustained by irradiation with light.

Photogalvanic Cells

Photogalvanic Cells are resemble regular galvanic cells. One of the half-cells is assembled using a photoelectrode, and this electrode needs to be irradiated with light in order to generate electricity.

Photo Redox Reactions

Photo redox reactions are redox reactions, powered by light.


OLEDs are organic light-emitting diodes. OLEDs are used in modern displays.

OPV are organic solar cells (organic photovoltaics).

Z-/E- (cis-trans) Isomerisations

Z-/E- or cis-/trans- isomerizations are changes in the configuration of a molecule. This change can be induced thermally or with light.


How is ozone produced and broken down? How does it protect us from UV light and what effects does it have on our bodies? And how is the ozone layer attacked by C(F)Cs?

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