2D hybrid networks of gold nanoparticles: mechanoresponsive optical humidity sensors. Issue 41 (19th August 2019)

• Record Type: Journal Article
• Authors: Squillaci, Marco A.; Zhong, Xiaolan; Peyruchat, Léo; Genet, Cyriaque; Ebbesen, Thomas W.; Samorì, Paolo
• Is Part Of: Nanoscale. Volume 11:Issue 41(2019)
• Page Start: 19315
• Page End: 19318
• Publication Date: 2019-08-19
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c9nr05337a
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : 2D all-covalent networks of Au nanoparticles, interconnected with hygroscopic organic linkers, act as highly sensitive humidity sensor. The interparticle distance changes in presence of moisture to reversibly trigger plasmonic coupling collectively. Abstract : Plasmonic coupling is a fascinating phenomenon occurring between neighboring metal nanostructures. We report a straightforward approach to study such process macroscopically by fabricating 2D networks of gold nanoparticles, interconnected with responsive hygroscopic organic linkers. By controlling the humidity we tune the interparticle distance to reversibly trigger plasmonic coupling collectively over several millimeters.