Tan Shu Fen, Bosman Michel, Nijhuis Christian A
Department of Chemistry, National University of Singapore , 3 Science Drive 3, Singapore 117543, Singapore.
Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Singapore 138634, Singapore.
Langmuir. 2017 Feb 7;33(5):1189-1196. doi: 10.1021/acs.langmuir.6b03721. Epub 2017 Jan 24.
We study the degradation process of closely spaced silver and gold nanocubes under high-energy electron beam irradiation using transmission electron microscopy (TEM). The high aspect ratio gaps between silver and gold nanocubes degraded in many cases as a result of protrusion and filament formation during electron beam irradiation. We demonstrate that the molecular coating of the nanoparticles can act as a protective barrier to minimize electron-beam-induced damage on passivated gold and silver nanoparticles.
我们使用透射电子显微镜（TEM）研究了高能电子束辐照下紧密排列的银和金纳米立方体的降解过程。银和金纳米立方体之间的高纵横比间隙在许多情况下由于电子束辐照期间的突出和细丝形成而降解。我们证明，纳米颗粒的分子涂层可以作为一种保护屏障，以最小化电子束对钝化的金和银纳米颗粒造成的损伤。
