Jianyu Huang's blog

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In situ TEM electrochemistry of anode materials in lithium ion batteries

Xiao Hua Liu and Jian Yu Huang, Energy Environ. Sci., 2011, DOI: 10.1039/C1EE01918J


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Multiple-Stripe Lithiation Mechanism of Individual SnO2 Nanowires in a Flooding Geometry

PRL 106, 248302 (2011)     The atomic scale lithiation mechanism of individual SnO2 nanowires in a flooding geometry was revealed by in situ transmission electron microscopy. The lithiation was initiated by the formation of multiple stripes with a width of a few nanometers parallel to the (020) plane traversing the entire wires, serving as multiple reaction fronts for later stages of lithiation. Inside the stripes, we identified a high density of dislocations and enlarged interplanar spacing, which provided an effective path for lithium ion transport.


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Surface mediated plasticity in sub-10-nm-sized gold crystals

Nature Communications 1, Article number:144 | DOI:10.1038/ncomms1149

Although deformation processes in submicron-sized metallic crystals are
well documented, the direct observation of deformation mechanisms in
crystals with dimensions below the sub-10-nm range is currently lacking.
Here, through in situ high-resolution transmission electron
microscopy (HRTEM) observations, we show that (1) in sharp contrast to
what happens in bulk materials, in which plasticity is mediated by
dislocation emission from Frank-Read sources and multiplication, partial
dislocations emitted from free surfaces dominate the deformation of


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Real time observation of battery charging/discharing at atomic resolution

Huang et al, Science 330, 1515-1520 (2010) (download pdf , or online version);Read a perspective written by Prof. Yet-Ming Chiang, Science 330, 1485 (2010);


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Dislocation migration in carbon onions

Phys. Rev. Lett. 105, 106102 (2010) 

What does a dislocation look like in a spherical geometry, and how does it migrate in such a structure? We report here the counterintuitive motion of the 1/2⟨0001⟩ edge dislocation in carbon onions from the outer surface to the inner core, i.e. from a low pressure surface to a high pressure core, rather than from the core to the surface as expected due to a surface image force. Maybe you can help us to explain this peculiar phenomenon.


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Cold welding of ultrathin gold nanowires

Nature Nanotechnology, Feb. 14, 2010. DOI: 10.1038/NNANO.2010.4, Yang Lu, Jian Yu Huang, Chao Wang, Shouheng Sun and Jun Lou


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TEM Postdoc Position at Sandia National Lab.

TEM Postdoc Position Available at Sandia National Lab.


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Geometric and electronic structure of graphene bilayer edges


Phys. Rev. B 80, 165407 (2009), Ji Feng, Liang Qi, Jian Yu Huang, and Ju Li


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Vacancy-hole and vacancy-tube migration in multiwall carbon nanotubes

Phys. Rev. B 78, 155436 (2008)   J.Y. Huang, F. Ding, B.I. Yakobson


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A TEM postdoc position is available at Sandia National Lab.

Job Description: The CINT Science Department is searching for a postdoctoral appointee to pursue research in the area of leading-edge electron microscopy of nanomaterials and their properties. The successful candidate will work closely with the staff scientist heading electron microscopy research activities at CINT on topics related to the structural, mechanical, thermal, and electrical properties of modern nanomaterials. This research effort uses a Tecnai F30 transmission electron microscope (TEM) outfitted with a Nanofactory TEM-scanning probe microscope (SPM) platform capable of conducting in-situ structure and property correlation measurements of nanostructured materials.


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Dislocation Dynamics in Multiwalled Carbon Nanotubes

PRL 100, 035503 (2008)  Jianyu Huang, Feng Ding, Boris I. Yakobson  


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