In situ atomic imaging of coalescence of Au nanoparticles on graphene: rotation and grain boundary migration.

نویسندگان

  • Jong Min Yuk
  • Myoungho Jeong
  • Sang Yun Kim
  • Hyeon Kook Seo
  • Jihyun Kim
  • Jeong Yong Lee
چکیده

Using in situ transmission electron microscopy, we demonstrated that gold nanoparticles are unified via "oriented attachment" assisted either by nanoparticle rotation or grain boundary migration at the attachment interface. We also observed that the combined nanoparticle changes shape with stable facet planes via surface diffusion, along with recrystallization.

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عنوان ژورنال:
  • Chemical communications

دوره 49 98  شماره 

صفحات  -

تاریخ انتشار 2013