High-resolution EM of colloidal nanocrystal growth using graphene liquid cells

Jong Min Yuk, Jungwon Park, Peter Ercius, Kwanpyo Kim, Daniel J. Hellebusch, Michael F. Crommie, Jeong Yong Lee, A. Zettl, A. Paul Alivisatos

Research output: Contribution to journalArticlepeer-review

865 Citations (Scopus)


We introduce a new type of liquid cell for in situ transmission electron microscopy (TEM) based on entrapment of a liquid film between layers of graphene. The graphene liquid cell facilitates atomic-level resolution imaging while sustaining the most realistic liquid conditions achievable under electron-beam radiation. We employ this cell to explore the mechanism of colloidal platinum nanocrystal growth. Direct atomic-resolution imaging allows us to visualize critical steps in the process, including site-selective coalescence, structural reshaping after coalescence, and surface faceting.

Original languageEnglish
Pages (from-to)61-64
Number of pages4
Issue number6077
Publication statusPublished - 2012 Apr 6

All Science Journal Classification (ASJC) codes

  • General


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