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Introductory Videos

What is a photon?
What is a photon?
Particle-Wave Duality

Fluorescence, Phosphorescence, Chemoluminescence

Underground-Mingolf
Underground-Mingolf
Colour by light emission
Photoluminescence – Color through Emission of Light
Photoluminescence – Color through Emission of Light
Fluorescence of Esculin
Fluorescence of Esculin
(The Crying Chestnut Branch)
Preparation of a Phosphorescent Sample
Preparation of a Phosphorescent Sample
Duration of Phosphorescence of Fluorescein-Boric Acid-Samples at Different Temperatures
Duration of Phosphorescence of Fluorescein-Boric Acid-Samples at Different Temperatures
Duration and Colors of the Phosphorescence of H-Acid-Boric Acid-Samples
Duration and Colors of the Phosphorescence of H-Acid-Boric Acid-Samples
Extending the duration phosphorescence by cooling
Extending the duration phosphorescence by cooling
Photoprotection of Chlorophyll by β-Carotene
Photoprotection of Chlorophyll by β-Carotene
Cold Incandescence
Cold Incandescence
Chemolumineszenz of Luminol with Air
Extinguishing the Cold Incandescence
Extinguishing the Cold Incandescence
Chemoluminescence of Luminol with Nitrogen
Reigniting the Cold Incandescence
Reigniting the Cold Incandescence
Chemoluminescence of Luminol with Oxygen
 

Photochromism, Solvatochromism, Photo Steady State

Light turns On and Off
Light turns On and Off
A photoactive molecular switch
Unequal Equilibria
Unequal Equilibria
Thermodynamic equilibrium vs. photosteady state
A chemical chameleon
A chemical chameleon
Molecular environment and solvatochromism
Creation of an "intelligent foil"
Creation of an "intelligent foil"
 
 

Organic Photovoltaic Cells OPV

Tutorial for building an OPV
Tutorial for building an OPV
In 4 Steps
Organic Photovoltaic Cell OPV in Operation
Organic Photovoltaic Cell OPV in Operation

Organic Light Emitting Diodes OLED

Tutorial for building an OLED
Tutorial for building an OLED
In 5 Steps

Z/E (cis-trans) Isomerisations

Photoisomerisation of Azobenzene
Photoisomerisation of Azobenzene