[HTML][HTML] Annealing temperature-dependent induced supramolecular chiroptical response of copolymer thin films studied by pump-modulated transient circular …

D Gust, M Scholz, V Schumacher, JC Mulatier… - Scientific Reports, 2024 - nature.com
Copolymer thin films showing induced supramolecular chirality are of considerable interest
for optoelectronic applications such as organic light-emitting diodes. Here, we introduce a …

Spatiotemporal Mapping of Efficient Chiral Induction by Helicene‐Type Additives in Copolymer Thin Films

M Morgenroth, M Scholz, L Guy… - Angewandte Chemie …, 2022 - Wiley Online Library
We observed efficient induction of chirality in polyfluorene copolymer thin films by mixing
with helicene‐type chiral additives based on the dibenzo [c, h] acridine motif. Images …

Plasticizer‐Induced Enhancement of Mesoscale Dissymmetry in Thin Films of Chiral Polymers with Variable Chain Length

JP Joseph, T Malone, SR Abraham, A Dutta… - Advanced …, 2024 - Wiley Online Library
Conjugated polymers with chiral side chains are of interest in areas including chiral
photonics, optoelectronics, and chemical and biological sensing. However, the low …

[HTML][HTML] Natural optical activity as the origin of the large chiroptical properties in π-conjugated polymer thin films

J Wade, JN Hilfiker, JR Brandt, L Liirò-Peluso… - Nature …, 2020 - nature.com
Polymer thin films that emit and absorb circularly polarised light have been demonstrated
with the promise of achieving important technological advances; from efficient, high …

Ultrafast UV–vis transient absorption and circular dichroism spectroscopy of a polyfluorene copolymer showing large chiral induction

M Morgenroth, M Scholz, T Lenzer… - The Journal of Physical …, 2020 - ACS Publications
Ultrafast broadband UV–vis transient circular dichroism (TrCD) and transient absorption (TA)
spectroscopy are employed to study the dynamics of chiral polymer thin films. Helical …

Amplifying chiroptical properties of conjugated polymer thin-film using an achiral additive

C Kulkarni, SCJ Meskers, ARA Palmans… - …, 2018 - ACS Publications
Chiral conjugated polymers bearing enantiopure side chains offer the possibility to harness
the effect of chirality in organic electronic devices. However, its use is hampered by the low …

[HTML][HTML] Mapping the broadband circular dichroism of copolymer films with supramolecular chirality in time and space

M Morgenroth, M Scholz, MJ Cho, DH Choi… - Nature …, 2022 - nature.com
Measurements of the electronic circular dichroism (CD) are highly sensitive to the absolute
configuration and conformation of chiral molecules and supramolecular assemblies and …

New fluorene-based chiral copolymers with unusually high optical activity in pristine and annealed thin films

MJ Cho, JS Ahn, YU Kim, HA Um, PN Prasad, GJ Lee… - RSC …, 2016 - pubs.rsc.org
Polyfluorene (PF)-based chiral alternating copolymers, ie, PFPh and PFTh, were
successfully synthesized to obtain high circular dichroism (CD) in pristine thin films. By …

Molecular design principles for achieving strong chiroptical properties of fluorene copolymers in thin films

C Kulkarni, MHC van Son, D Di Nuzzo… - Chemistry of …, 2019 - ACS Publications
Understanding the molecular level origin of chiroptical properties in enantiopure π-
conjugated polymers is essential for tailoring these materials for application in organic light …

Insights into the origins of inverted circular dichroism in thin films of a chiral side chain polyfluorene

L Minion, J Wade, JM Moreno‐Naranjo, S Ryan… - Chirality, 2023 - Wiley Online Library
We synthesized a fluorene‐bithiophene co‐polymer with chiral side chains (cPFT2) and
investigated its chiroptical properties via synchotronradiation circular dichroism. We …