User profiles for Hanfei Yan

Hanfei Yan

Brookhaven National Laboratory
Verified email at bnl.gov
Cited by 5500

A self‐forming composite electrolyte for solid‐state sodium battery with ultralong cycle life

…, J Shi, YS Chu, X Yu, K Xu, M Ge, H Yan… - Advanced Energy …, 2017 - Wiley Online Library
Replacing organic liquid electrolyte with inorganic solid electrolytes (SE) can potentially
address the inherent safety problems in conventional rechargeable batteries. However, solid‐…

Optimization of overlap uniformness for ptychography

X Huang, H Yan, R Harder, Y Hwu, IK Robinson… - Optics express, 2014 - opg.optica.org
We demonstrate the advantages of imaging with ptychography scans that follow a Fermat
spiral trajectory. This scan pattern provides a more uniform coverage and a higher overlap …

Focusing of hard x-rays to 16 nanometers with a multilayer Laue lens

HC Kang, H Yan, RP Winarski, MV Holt, J Maser… - Applied Physics …, 2008 - pubs.aip.org
We report improved results for hard x-ray focusing using a multilayer Laue lens (MLL). We
have measured a line focus of 16 nm width with an efficiency of 31% at a wavelength λ= 0.064 …

Hard x-ray nanofocusing by multilayer Laue lenses

H Yan, R Conley, N Bouet, YS Chu - Journal of Physics D …, 2014 - iopscience.iop.org
Multilayer Laue lens (MLL) is a new class of x-ray optics that offer great promise for achieving
nanometre-level spatial resolution by focusing hard x-rays. Fabricating an MLL via thin-film …

Three-dimensional visualization of nanoparticle lattices and multimaterial frameworks

…, B Minevich, H Emamy, X Huang, YS Chu, H Yan… - Science, 2022 - science.org
Advances in nanoscale self-assembly have enabled the formation of complex nanoscale
architectures. However, the development of self-assembly strategies toward bottom-up …

Hierarchical nickel valence gradient stabilizes high-nickel content layered cathode materials

…, X Huang, Z Shadike, A Pattammattel, H Yan… - Nature …, 2021 - nature.com
High-nickel content cathode materials offer high energy density. However, the structural and
surface instability may cause poor capacity retention and thermal stability of them. To …

Two dimensional hard x-ray nanofocusing with crossed multilayer Laue lenses

H Yan, V Rose, D Shu, E Lima, HC Kang, R Conley… - Optics express, 2011 - opg.optica.org
Hard x-ray microscopy with nanometer resolution will open frontiers in the study of materials
and devices, environmental sciences, and life sciences by utilizing the unique …

Takagi-Taupin description of x-ray dynamical diffraction from diffractive optics with large numerical aperture

H Yan, J Maser, A Macrander, Q Shen, S Vogt… - Physical Review B …, 2007 - APS
We present a formalism of x-ray dynamical diffraction from volume diffractive optics with large
numerical aperture and high aspect ratio, in an analogy to the Takagi-Taupin equations [ …

X-ray focusing with efficient high-NA multilayer Laue lenses

…, A Burkhardt, D Pennicard, X Huang, H Yan… - Light: Science & …, 2018 - nature.com
Multilayer Laue lenses are volume diffraction elements for the efficient focusing of X-rays.
With a new manufacturing technique that we introduced, it is possible to fabricate lenses of …

Dislocation microstructure and its influence on corrosion behavior in laser additively manufactured 316L stainless steel

DJ Sprouster, WS Cunningham, GP Halada, H Yan… - Additive …, 2021 - Elsevier
The hierarchical nature of additively manufactured materials necessitates a multimodal
approach for quantifying microstructural features and corresponding chemical heterogeneities …