scholarly journals Nanoscale Investigation of Local Thermal Expansion at SrTiO3 Grain Boundaries by Electron Energy Loss Spectroscopy

Nano Letters ◽  
2021 ◽  
Author(s):  
Kunyen Liao ◽  
Kiyou Shibata ◽  
Teruyasu Mizoguchi
Keyword(s):  
Thermal Expansion ◽  
Energy Loss ◽  
Grain Boundaries ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Electron Energy Loss

Analysis of the Atomic-Scale Defect Chemistry at Interfaces in Fluorite Structured Oxides by Electron Energy Loss Spectroscopy

2001 ◽  
Vol 703 ◽  
Author(s):  
Y. Ito ◽  
Y Lei ◽  
N.D. Browning ◽  
T.J. Mazanec
Keyword(s):  
Energy Loss ◽  
Grain Boundaries ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Scanning Transmission Electron Microscope ◽  
Atomic Scale ◽  
Contrast Imaging ◽  
Ceramic Electrolyte ◽  
Scanning Transmission ◽  
Electron Energy Loss

ABSTRACTGd3+ doped Ce oxides are a major candidate for use as the electrolyte in solid oxide fuel cells operating at ∼500 °C. Here, the effect of the atomic structure on the local electronic properties, i.e. oxygen coordination and cation valence, at grain boundaries in the fluorite structured Gd0.2Ce0.8O2-x ceramic electrolyte is investigated by a combination of atomic resolution Z-contrast imaging and electron energy loss spectroscopy (EELS) in the scanning transmission electron microscope (STEM). In particular, EELS analyses from grain boundaries reveals a complex interaction between segregation of the dopant (Gd3+), oxygen vacancies and the valence state of Ce. These results are similar to observations from fluorite-structured Yttria-Stabilized Zirconium (YSZ) bicrystal grain boundaries.

A quantitative approach for spatially-resolved electron energy-loss spectroscopy of grain boundaries and planar defects on a subnanometer scale

1995 ◽  
Vol 59 (1-4) ◽  
pp. 215-227 ◽  
Author(s):  
Hui Gu ◽  
Miran C̆eh ◽  
Susanne Stemmer ◽  
Harald Müllejans ◽  
Manfred Rühle
Keyword(s):  
Energy Loss ◽  
Grain Boundaries ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Quantitative Approach ◽  
Planar Defects ◽  
Spatially Resolved ◽  
Electron Energy Loss

scholarly journals Determining the Electron Density and Volume Expansion at Grain Boundaries Using Electron Energy-Loss Spectroscopy

2017 ◽  
Vol 23 (S1) ◽  
pp. 414-415 ◽  
Author(s):  
Proloy Nandi ◽  
Eric Hoglund ◽  
Xiahan Sang ◽  
Raymond R. Unocic ◽  
James M. Howe
Keyword(s):  
Energy Loss ◽  
Grain Boundaries ◽  
Electron Density ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Volume Expansion ◽  
Electron Energy Loss
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