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Graphene‐sealed Si/SiN cavities for high‐resolution in situ electron microscopy of nano‐confined solutions
Author(s) -
Rasool Haider,
Dunn Gabriel,
Fathalizadeh Aidin,
Zettl Alex
Publication year - 2016
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201600232
Subject(s) - graphene , materials science , transmission electron microscopy , electron microscope , nanotechnology , resolution (logic) , electron , nano , scanning electron microscope , microscopy , nanoparticle , optoelectronics , optics , physics , composite material , quantum mechanics , artificial intelligence , computer science
We demonstrate new liquid cell architectures utilizing graphene‐sealed Si or SiN cavities for in situ electron microscopy. While previous graphene liquid cell techniques have shown graphene to be an ideal sealing layer and electron‐transparent viewing window, they trap irregular geometries of liquid with unknown sample volumes. Our new technique allows for a leak‐proof confinement of liquids of precise volume in the tens of attoliter range while maintaining the benefits of graphene as a viewing window. The utility of this new cell architecture is demonstrated by imaging the dynamics of gold nanoparticles in three dimensions with atomic resolution under a transmission electron microscope.