Circularly Polarized Microscopy of Thin Films of Chiral Organic Dyes.

ABSTRACT: We introduce an optical microscopy technique, circularly polarized microscopy or CPM, able to afford spatially resolved electronic circular dichroism (ECD) of thin films of chiral organic semiconductors through a commercial microscope equipped with a camera and inexpensive optics. Provided the dichroic ratio is sufficiently large, the spatial resolution is on the order of the μm and is only limited by the magnification optics integrated in the microscope. We apply CPM to thin films of small chiral π-conjugated molecules, which gave rise to ordered aggregates in the thin layer. Primarily, conventional ECD can reveal and characterize chiral supramolecular structures and possible interferences between anisotropic properties of solid samples; however, it cannot generally account for the spatia

SUBMITTER: Taddeucci A 

PROVIDER: S-EPMC10467535 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature