Publication date: 28th August 2024
We have an ongoing interest in the development of conjugated chiral molecules which can emit and detect circularly-polarised (CP) light within thin film materials and in organic electronic devices. CP light is central to many applications, including data storage, quantum computation, biosensing, environmental monitoring and display technologies. Such technologies require the generation of device compatible materials and clear understanding of the chiroptical mechanisms at play [1], [2].
Using a range of chiral materials - helicenes, fullerenes and polymers - this talk will give an overview of our strategies to maximise the selectivity of such chiral-optical responses through molecular design, materials processing and device architecture. Key and suprising results will be showcased and discussed, including the the role of polymer supramolecular assembly in large chiroptical responses [3], the potential for amplication of dissymmerty through energy transfer [4] and the observation of anomolous circularly polaized electroluminescence [5]. Recent results will be discussed that allow for an interplay between natural and anomolous mechanisms in circularly polaized electroluminescence providing additional levels of control.
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