Wang, Xiaojie; Xu, Dan; Jaquet, Bea; Yang, Yang; Wang, Jiaxiu; Huang, Heqin; Chen, Ye; Gerhard, Christoph; Zhang, Kai published the article 《Structural Colors by Synergistic Birefringence and Surface Plasmon Resonance》. Keywords: structural color synergistic birefringence surface plasmon resonance; birefringence; cellulose nanocrystals (CNCs); gold nanorods (GNRs); structural colors; surface plasmon resonance (SPR).They researched the compound: Hydrogen tetrachloroaurate(III) trihydrate( cas:16961-25-4 ).Computed Properties of AuCl4H7O3. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:16961-25-4) here.
One-dimensional nanomaterials including cellulose nanocrystals (CNCs) and gold nanorods (GNRs) are widely used in optical materials due to their resp. 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 sep. films after unidirectional alignment in dynamic hydrogels. By synergistically leveraging CNCs and GNRs with diverse amounts in hybrid films or stacked sep. 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 via a stacking/rotating technique successively manipulates colors with flexible film combinations. By rotating the films with aligned GNRs (0-180°), light absorption can traverse from ~500 to 650 nm. Thus, tuning the adjustable synergism of birefringence of CNCs and SPR of GNRs provides great potential for structural colors, which enlightens inspirations for designing functional optical materials.
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Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem