Structural Colors by Synergistic Birefringence and Surface Plasmon Resonance
| Autor: | Christoph Gerhard, Dan Xu, Yang Yang, Bea Jaquet, Heqin Huang, Jiaxiu Wang, Xiaojie Wang, Kai Zhang, Ye Chen |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Birefringence General Engineering General Physics and Astronomy Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 3. Good health 0104 chemical sciences Nanomaterials Cellulose nanocrystals Optical materials General Materials Science Nanorod Surface plasmon resonance 0210 nano-technology Structural coloration |
| Zdroj: | ACS Nano. 14:16832-16839 |
| ISSN: | 1936-086X 1936-0851 |
| DOI: | 10.1021/acsnano.0c05599 |
| Popis: | One-dimensional nanomaterials including cellulose nanocrystals (CNCs) and gold nanorods (GNRs) are widely used in optical materials due to their respective inherent features: birefringence with accompanying light retardation and surface plasmon resonance (SPR). Herein, we successfully combine these properties of both nanorods to generate synergistic and readily tunable structural colors in hybrid composite polymer films. CNCs and GNRs are embedded either in the same or in separate films after unidirectional alignment in dynamic hydrogels. By synergistically leveraging CNCs and GNRs with diverse amounts in hybrid films or stacked separate films, wide-ranging structural colors are obtained, far beyond those from films solely with aligned CNCs or GNRs. Higher GNR contents enhance light absorption at 520 nm with promoted magenta colors, while more CNCs affect the overall phase retardation with light absorption between 400 and 700 nm between crossed polarizers. Moreover, adjusting the angles between films solely with CNCs or GNRs |
| Databáze: | OpenAIRE |
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