Unexpected radiation resistance of core/shell ceramic oxide nanoparticles. (December 2018)

• Record Type: Journal Article
• Authors: Blair, S.J.; Muntifering, B.R.; Chan, R.O.; Barr, C.M.; Boyle, T.J.; Hattar, K.
• Is Part Of: Materials today communications. Volume 17(2018)
• Page Start: 109
• Page End: 113
• Publication Date: 2018-12
• Subjects: Core/shell nanoparticles -- Hafnium oxide -- Ion irradiation -- Radiation stability; Materials science -- Periodicals; 620.11
• DOI: 10.1016/j.mtcomm.2018.08.015
• Languages: English
• ISSNs: 2352-4928

Abstract

Graphical abstract: Highlights: HfOx /SiOx core/shell structure demonstrates unprecedented stability to radiation/temperature. Core/shell nanoparticle appear to prevent sputtering and stores displacement defects and implanted He or diffusion out of the core/shell structure. Core/shell structure may show promise for future cancer therapy concepts and micro-electronics design for radiation environments. Abstract: This report presents HfOx /SiOx core/shell nanoparticles that withstand extensive bombardment from both high energy heavy ions and low energy light ions. In addition, these core/shell nanoparticles are stable to thermal annealing up to 800 °C. These results suggest that the core/shell structures may enhance nanoparticle radiation stability.