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The method of spectroscopic ellipsometry is applied to complex periodic nanomaterials, consisting of shear-ordered polymeric nanosphere composites, with intense resonant structural color. A corresponding multilayer optical quasi-model of the system, parametrizing the inherent degree of sample disorder and encompassing key properties of effective refractive-index and index-contrast, is developed to elucidate the correlation between the ∆ and Ψ ellipsometric parameters and the shear-induced opaline crystallinity. These approaches offer reliable means of in-line tracking of the sample quality of such “polymer opals” in large scale processing and applications.
|Number of pages||9|
|Publication status||Published - 12 May 2022|
- structural color
- optical modelling
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Finlayson, C., Rosetta, G. & Tomes, J., Prifysgol Aberystwyth | Aberystwyth University, 17 May 2022
- 1 Finished
SPARC II - Solar Photovoltaic Academic Research
01 Jan 2016 → 31 Mar 2023
Project: Externally funded research