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Updated: Jan 13, 2026

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Control de la Transferencia de Carga Molecular mediante Polaritones en Semiconductores de Perylenodiimida

Rao Fei^1,2, Victoria Quirós-Cordero³, Demelza Wright¹

¹Chemistry and Nanoscience Center, National Laboratory of the Rockies, Golden, Colorado 80401, United States.

The journal of physical chemistry letters

|January 7, 2026

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.

Palabras clave:

electrodinámica cuántica de cavidades semiconductores moleculares perylendiimida transferencia de carga polaritones acoplamiento fuerte excitones espectroscopía de absorción transitoria materiales fotónicos

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