Spatially resolved chiroptical study of thin films ofbenzo[1,2-b:4,5-b’]dithiophene-based oligothiophenes bysynchrotron radiation electronic circular dichroism imaging(SR-ECDi) technique
Oglądaj/ Otwórz
Data
2022Autor
Albano, Gianluigi
Górecki, Marcin
Jávorfi, Tamás
Hussain, Rohanah
Siligardi, Giuliano
Pescitelli, Gennaro
Di Bari, Lorenzo
Metadane
Pokaż pełny rekordStreszczenie
The study of the chiroptical properties of thin-film samples of two chiral benzo[1,2-b:4,5-b’]dithiophene-based oligothiophenes with optoelectronic properties was car-ried out at Diamond B23 beamline using the synchrotron radiation electronic cir-cular dichroism imaging (SR-ECDi) facility. The experimental results support thehypothesis that the non-reciprocal circularly polarized absorption observed in thesematerials is due to the combined linear dichroism and linear birefringence contribu-tions. The mapping at 50-μm spatial resolution revealed that several species coexistin the mesoscopic chiral domains likely due to different aggregated phases, whichwere identified in the films by SR-ECDibut could not be detected with benchtopECD instruments.
Kolekcje
- Artykuły IChO PAN [109]
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