Evaluation of the Oxygen Migration Energy in Doped Ceria by Terahertz Spectroscopy

2021 ◽  
Vol 16 (6) ◽  
Author(s):  
Masaya Nagai ◽  
Yuto Furutani ◽  
Hikaru Takehara ◽  
Tomohide Morimoto ◽  
Masaaki Ashida ◽  
...  
Keyword(s):  
Terahertz Spectroscopy ◽  
Doped Ceria ◽  
Migration Energy ◽  
Oxygen Migration

Concentration and temperature dependences of the oxygen migration energy in yttrium-stabilized zirconia

2011 ◽  
Vol 53 (9) ◽  
pp. 1827-1831 ◽  
Author(s):  
N. V. Tokiy ◽  
B. I. Perekrestov ◽  
D. L. Savina ◽  
I. A. Danilenko
Keyword(s):  
Migration Energy ◽  
Stabilized Zirconia ◽  
Temperature Dependences ◽  
Oxygen Migration

scholarly journals STUDY OF OXYGEN VACANCY DIFFUSION IN YTTRIA-DOPED CERIA AND YTTRIA-STABILIZED ZIRCONIA BY STATISTICAL MOMENT METHOD

2019 ◽  
Vol 29 (3) ◽  
Author(s):  
Le Thu Lam ◽  
Vu Van Hung ◽  
Nguyen Thanh Hai
Keyword(s):  
Oxygen Vacancy ◽  
Moment Method ◽  
Statistical Moment ◽  
Yttria Stabilized Zirconia ◽  
Doped Ceria ◽  
Migration Energy ◽  
Stabilized Zirconia ◽  
Yttria Doped Ceria ◽  
Oxygen Vacancy Diffusion ◽  
Statistical Moment Method

Oxygen vacancy diffusion in yttria-doped ceria (YDC) and yttria-stabilized zirconia(YSZ) are investigated using statistical moment method, including the anharmonicity effects of thermal lattice vibrations. The expressions of oxygen vacancy-dopant association energy and oxygen vacancy migration energy are derived in an explicit form. Calculation of the vacancy migration energy enable us to evaluate the important role of dopant cation on the oxygen vacancydiffusion. The dependences of the vacancy activation energies and diffusion coefficients in YDC and YSZ systems on dopant concentration are also discussed in detail. The calculated results are in good agreement with the other theoretical and experimental results.

A DFT+U study of defect association and oxygen migration in samarium-doped ceria

2011 ◽  
Vol 13 (13) ◽  
pp. 6116 ◽  
Author(s):  
Arif Ismail ◽  
James Hooper ◽  
Javier B. Giorgi ◽  
Tom K. Woo
Keyword(s):  
Doped Ceria ◽  
Oxygen Migration

High resolution terahertz spectroscopy for analytical applications

2020 ◽  
Vol 63 (7) ◽  
pp. 708-720 ◽  
Author(s):  
V L Vaks ◽  
V A Anfertev ◽  
V Yu Balakirev ◽  
S A Basov ◽  
E G Domracheva ◽  
...  
Keyword(s):  
High Resolution ◽  
Terahertz Spectroscopy ◽  
Analytical Applications

Continuous-wave Terahertz Spectroscopy System Based on Photodiodes

PIERS Online ◽  
2010 ◽  
Vol 6 (4) ◽  
pp. 390-394 ◽  
Author(s):  
Tadao Nagatsuma ◽  
Akira Kaino ◽  
Shintaro Hisatake ◽  
Katsuhiro Ajito ◽  
Ho-Jin Song ◽  
...  
Keyword(s):  
Continuous Wave ◽  
Terahertz Spectroscopy ◽  
Spectroscopy System

Carrier Lifetime of Au-Hyperdoped Ge using Terahertz Spectroscopy

2020 ◽  
Author(s):  
S. Senali Dissanayake ◽  
Naheed Ferdous ◽  
Hemi Gandhi ◽  
Eric Mazur ◽  
Elif Ertekin ◽  
...  
Keyword(s):  
Carrier Lifetime ◽  
Terahertz Spectroscopy

scholarly journals Temperature dependent poly(L-lactide) crystallization investigated by Fourier transform terahertz spectroscopy

2021 ◽  
Author(s):  
Seiichiro Ariyoshi ◽  
Satoshi Ohnishi ◽  
Hikaru Mikami ◽  
Hideto Tsuji ◽  
Yuki Arakawa ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Absorption Spectra ◽  
Terahertz Spectroscopy ◽  
Thz Spectroscopy ◽  
Frequency Range ◽  
Temperature Dependent ◽  
Thz Absorption

Poly(L-lactide) (PLLA) was investigated by Fourier transform terahertz (THz) spectroscopy over the frequency range of 1.0 – 8.5 THz. THz absorption spectra were acquired for PLLA samples isothermally crystallized at...

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