Core-shell nanoparticles and enhanced polarization in polymer based nanocomposite dielectrics.

Journal article

We present a detailed study of the evolution and nature of metallic core-oxide shell particles and the role of nanostructure in the physics of enhanced polarization in polymer-nanocomposite (PNC) based dielectrics. Nylon-6 based PNCs consisting of aluminium (core)-aluminium oxide (shell) nanoparticles were fabricated by a vacuum deposition technique. Their resulting high polarizability was closely related to the formation and chemistry of the core-shell structure that was revealed by transmission electron microscopy to comprise a highly-defective, strained and non-stoichiometric semi-crystalline/amorphous Al-oxide shell.

Authors: Mahadevegowda, A; Young, N; Grant, P

• Publication status: Published
• Publisher: Institute of Physics Publishing
• Journal: Nanotechnology
• Volume: 25
• Issue: 47
• Pages: 475706
• Publication date: 2014-11-01
• DOI: 10.1088/0957-4484/25/47/475706
• EISSN: 1361-6528
• ISSN: 0957-4484
• Language: English
• Keywords: polymer nanocomposites; transmission electron microscopy; polarization; dielectric thin films