Rapid handheld time-resolved circularly polarised luminescence photography camera for life and material sciences

Davide F. Rosa, Patrycja Stachelek, Dominic J. Black and Robert Pal ()
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Davide F. Rosa: Durham University
Patrycja Stachelek: Durham University
Dominic J. Black: Durham University
Robert Pal: Durham University

Nature Communications, 2023, vol. 14, issue 1, 1-11

Abstract: Abstract Circularly polarised luminescence (CPL) is gaining a rapidly increasing following and finding new applications in both life and material sciences. Spurred by recent instrumental advancements, the development of CPL active chiral emitters is going through a renaissance, especially the design and synthesis of CPL active luminescent lanthanide complexes owing to their unique and robust photophysical properties. They possess superior circularly polarised brightness (CPB) and can encode vital chiral molecular fingerprints in their long-lived emission spectrum. However, their application as embedded CPL emitters in intelligent security inks has not yet been fully exploited. This major bottleneck is purely hardware related: there is currently no suitable compact CPL instrumentation available, and handheld CPL photography remains an uncharted territory. Here we present a solution: an all solid-state small footprint CPL camera with no moving parts to facilitate ad hoc time-resolved enantioselective differential chiral contrast (EDCC) based one-shot CPL photography (CPLP).

Date: 2023
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DOI: 10.1038/s41467-023-37329-8

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