Related Experiment Video
Updated: Mar 15, 2026

Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
Published on: April 22, 2016
Study of the effect of excited state concentration on photodegradation of the p3ht polymer
V N Peters1, Rohan Alexander2,3, D'Angelo A Peters2
1Center for Materials Research, Norfolk State University, Norfolk, VA 23504, USA.
Abstract:
We have studied photoinduced reduction of absorption and emission in p3ht, a semiconducting polymer, and found that the rate of photodegradation (destruction of the constituent thiophene rings) does not correlate with the luminescence intensity and, correspondingly, does not depend on the excited state concentration. This conclusion rules out Purcell enhancement of radiative decay rate as a possible explanation of the recently discovered reduction of the p3ht photodegradation rate in the vicinity of metallic substrates and lamellar metal-dielectric metamaterials.
Related Concept Videos
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
Variables Affecting Phosphorescence and Fluorescence
Deactivation Processes: Jablonski Diagram
Cycloaddition Reactions: MO Requirements for Photochemical Activation
Free-Radical Chain Reaction and Polymerization of Alkenes

