Extending Polymer Opal Structural Color Properties into the Near-Infrared
In: Micro, Jg. 4 (2024), Heft 2, S. 387-400
Online
academicJournal
Zugriff:
We report the fabrication and characterisation of near-IR reflecting films and coatings based on shear-assembled crystalline ensembles of polymer composite microspheres, also known as “polymer opals”. Extension of the emulsion polymerisation techniques for synthesis of tractable larger core-interlayer-shell (CIS) particles, of up to half a micron diameter, facilitates the engineering and processing of thin-film synthetic opals, with a tunable photonic stopband spanning an extended spectral range of λ ≈ 700–1600 nm. Samples exhibit strong “scattering cone” interactions, with considerable angular dependence and angle tuning possible, as measured with a goniometric technique. These intense optical resonances in the near-IR, particularly within the important region around λ ~ 800 nm, combined with an appreciable translucency within the visible light spectrum, is indicative of the potential applications in coatings technologies and solar cells.
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Extending Polymer Opal Structural Color Properties into the Near-Infrared
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Autor/in / Beteiligte Person: | Rosetta, Giselle ; Gunn, Matthew ; Tomes, John J. ; Butters, Mike ; Finlayson, Chris E. |
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Zeitschrift: | Micro, Jg. 4 (2024), Heft 2, S. 387-400 |
Veröffentlichung: | MDPI AG, 2024 |
Medientyp: | academicJournal |
ISSN: | 2673-8023 (print) |
DOI: | 10.3390/micro4020024 |
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