Transparent Polymer Opal Thin Films with Intense UV Structural Color

被引：5
作者：
Rosetta, Giselle [1 ,2 ]
Gunn, Matthew [1 ]
Tomes, John J. [1 ]
Butters, Mike [3 ]
Pieschel, Jens [4 ]
Hartmann, Frank [4 ]
Gallei, Markus [4 ,5 ]
Finlayson, Chris E. [1 ]
机构：
[1] Prifysgol Aberystwyth Univ, Dept Phys, Aberystwyth SY23 3BZ, Dyfed, Wales
[2] Varichem Co Ltd, Brynmawr NP23 4BX, Wales
[3] Minton Treharne & Davies, Cardiff CF14 7HY, Wales
[4] Saarland Univ, Polymer Chem, Campus C4 2, D-66123 Saarbrucken, Germany
[5] Saarland Ctr Energy Mat & Sustainabil, Saarene, Campus Saarbrucken C4 2, D-66123 Saarbrucken, Germany
来源：
MOLECULES | 2022年 / 27卷 / 12期
关键词：
photonic crystals; UV spectroscopy; optical characterization; polymers; thin film coatings; UV reflecting films; FABRICATION; CRYSTALS; SPHERES; GAP;
D O I：
10.3390/molecules27123774
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
We report on shear-ordered polymer photonic crystals demonstrating intense structural color with a photonic bandgap at 270 nm. Our work examines this UV structural color, originating from a low refractive index contrast polymer composite system as a function of the viewing angle. We report extensive characterization of the angle-dependent nature of this color in the form of 'scattering cones', which showed strong reflectivity in the 275-315 nm range. The viewing range of the scattering was fully quantified for a number of planes and angles, and we additionally discuss the unique spectral anisotropy observed in these structures. Such films could serve as low-cost UV reflection coatings with applications in photovoltaics due to the fact of their non-photobleaching and robust mechanical behavior in addition to their favorable optical properties.
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收藏
页数：12
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