Electromagnetic interference shielding in X-band with aero-GaN. (3rd June 2019)

• Record Type: Journal Article
• Authors: Dragoman, Mircea; Braniste, Tudor; Iordanescu, Sergiu; Aldrigo, Martino; Raevschi, Simion; Shree, Sindu; Adelung, Rainer; Tiginyanu, Ion
• Is Part Of: Nanotechnology. Volume 30:Number 34(2019)
• Publication Date: 2019-06-03
• Subjects: electromagnetic interference shielding -- aero-GaN -- microwaves; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/ab2023
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: We investigate the electromagnetic shielding properties of an ultra-porous lightweight nanomaterial named aerogalnite (aero-GaN). Aero-GaN is made up of randomly arranged hollow GaN microtetrapods, which are obtained by direct growth using hydride vapor phase epitaxy of GaN on the sacrificial network of ZnO microtetrapods. A 2 mm thick aero-GaN sample exhibits electromagnetic shielding properties in the X-band similar to solid structures based on metal foams or carbon nanomaterials. Aero-GaN has a weight four to five orders of magnitude lower than the weight of metals.