期刊
SCIENCE
卷 336, 期 6077, 页码 61-64出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1217654
关键词
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资金
- Physical Chemistry of Inorganic Nanoscrystals Program [KC3105]
- Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy (DOE) [DE-AC02-05CH11231]
- DOE [DE-AC02-05CH11231]
- National Research Foundation of Korea
- Ministry of Education, Science and Technology [2010-0029714]
- Office of Energy Research, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the DOE [DE-AC02-05CH11231]
- Office of Naval Research [N00014-09-1-1066]
- NSF [EEC-0832819]
- National Research Foundation of Korea [2009-0094038] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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.
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