Related Experiment Video
Updated: Jan 13, 2026

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
Published on: February 23, 2017
Polariton Control of Molecular Charge Transfer in Perylene Diimide Semiconductors
Rao Fei1,2, Victoria Quirós-Cordero3, Demelza Wright1
1Chemistry and Nanoscience Center, National Laboratory of the Rockies, Golden, Colorado 80401, United States.
Abstract:
We report the modulation of molecular charge transfer in a bay-substituted perylene diimide derivative embedded in a planar distributed Bragg reflector microcavity. Angle-resolved reflectance spectra confirm the formation of upper and lower polaritons with clear Rabi splitting, indicating strong coupling between the cavity mode and molecular excitons. Using broadband transient absorption spectroscopy, we compare the ultrafast dynamics of cavity and non-cavity films. While excited-state absorption and stimulated emission pathways remain largely unchanged, kinetic modeling reveals a moderate increase in the charge transfer rate and yield under strong coupling. This enhancement is attributed to a reduction in the effective driving force via the formation of the lower polariton, placing the system deeper into the Marcus inverted regime. Our results demonstrate a promising non-chemical method leveraging cavity quantum electrodynamics to modulate charge separation processes in molecular semiconductors.
More Related Videos
Related Concept Videos
Potential Due to a Polarized Object
Induced Electric Dipoles
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
Molecular Shape and Polarity
π Electron Effects on Chemical Shift: Overview
π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds

