A Translucent Nanocomposite with Liquid Inclusions of a Responsive Nanoparticle Dispersion. Issue 40 (23rd August 2018)

• Record Type: Journal Article
• Authors: Doblas, David; Hubertus, Jonas; Kister, Thomas; Kraus, Tobias
• Is Part Of: Advanced materials. Volume 30:Issue 40(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-08-23
• Subjects: active materials -- colloidal dispersion -- gold nanoparticles -- nanocomposites -- self‐assembly; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201803159
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract: Active nanocomposites are created with liquid inclusions that contain plasmonic gold nanoparticles inside a polymeric matrix. The alkylthiol‐coated gold particles are designed to reversible agglomerate at certain temperatures, which changes the plasmonic coupling and thus optical properties. It is found that particles confined to the liquid inclusions inside the active composite retain this capability and cause macroscopic, temperature‐dependent color change of the solid. The transition is fully reversible for at least 100 times and tunable in temperature via particle size and ligand. This method is suitable to "package" responsive dispersion in solid composites to exploit their dynamic properties in materials. Abstract : Active nanocomposites are created with liquid inclusions that contain plasmonic gold nanoparticles inside a hydrogel matrix. The alkylthiol‐coated gold particles are designed to reversibly agglomerate at certain temperatures, which changes the plasmonic coupling and thus optical properties. The transition is fully reversible for at least 100 times and tunable in temperature via particle size and ligand.