Emergent Nonreciprocal Circularly Polarized Emission from an Organic Thin Film.
basic_science · Level V
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- Record sourced from PubMed, PMID 32734682.
- Also identified by DOI 10.1002/adma.202002575.
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Abstract
Controlling circularly polarized (CP) emission is key for both fundamental understanding and applications in the field of chiral photonics and electronics. Here, a completely new way to achieve this goal is presented. A luminescent thin film, made from a chiral conjugated phenylene bis-thiophenylpropynone able to self-assemble into ordered structures, emits highly circularly polarized light with opposite handedness from its two opposite faces. Such emergent nonreciprocal behavior in CP emission, so far unprecedented, represents a fundamental advance, opening new opportunities in design, preparation, and applications of CP emitting materials.