Suchergebnisse

Thin films of a chiral diketopyrrolopyrrole derivative were imaged with spatially-defined Mueller Matrix Polarimetry, focussing on the Circular Dichroism signal, giving unique insight into the impact that deposition techniques and thermal annealing can have on chiral supramolecular structures in the solid state, where homogeneity was observed for spun-coated films while drop-coating afforded chiroptical diversity in the material, a feature invisible to absorption spectroscopy or optical microscopy. ; We thank the University of Nottingham through the Propulsion Futures Beacon of Excellence and the EPSRC through the LDMI DTP. The Diamond Light Source Ltd (beamline B23) is thanked for providing beamtime (SM22017 and SM26044) and Drs T.-M. Gianga, T. Ja´vorfi and R. Hussain for beamline assistance. ; With funding from the Spanish government through the 'Severo Ochoa Centre of Excellence' accreditation (CEX2019-000917-S). ; Peer reviewed