The poly‐3‐hexylthiophene/NOPF6 system: A photoelectron spectroscopy study of electronic structural changes induced by the charge transfer in the solid state

1990 ◽  
Vol 93 (6) ◽  
pp. 4433-4439 ◽  
Author(s):  
R. Lazzaroni ◽  
M. Lögdlund ◽  
S. Stafström ◽  
W. R. Salaneck ◽  
J. L. Brédas
Keyword(s):  
Charge Transfer ◽  
Solid State ◽  
Photoelectron Spectroscopy ◽  
Structural Changes ◽  
Spectroscopy Study ◽  
System A

scholarly journals New Insights of the Solid State Transformations in the Ag-Se-Ge System : a Mechanical Spectroscopy Study

1996 ◽  
Vol 06 (C8) ◽  
pp. C8-655-C8-658
Author(s):  
S. Etienne ◽  
G. Taillades ◽  
A. Pradel ◽  
M. Ribes
Keyword(s):  
Solid State ◽  
Spectroscopy Study ◽  
Mechanical Spectroscopy ◽  
System A

X-Ray Photoelectron Spectroscopy Study of Oxygen and Argon Annealed YBa2Cu3O7-δ

1998 ◽  
Vol 12 (06n07) ◽  
pp. 239-245 ◽  
Author(s):  
P. Rajasekar ◽  
P. Chakraborty ◽  
S. K. Bandyopadhyay ◽  
P. Barat ◽  
Pintu Sen
Keyword(s):  
Binding Energy ◽  
Photoelectron Spectroscopy ◽  
Structural Changes ◽  
Spectroscopy Study ◽  
X Ray

X-ray Photoelectron Spectroscopy (XPS) measurements have been performed on oxygen- and argon-annealed YBa 2 Cu 3 O 7-δ (YBCO) and the results are compared with similar measurements performed on Y 2 O 3. The structural changes in oxygen- and argon-annealed YBCO are reflected in the shift of the Binding Energy (BE) peak positions for the various components existing in the YBCO lattice.

scholarly journals Charge-transfer energy in iridates: A hard x-ray photoelectron spectroscopy study

2020 ◽  
Vol 102 (4) ◽  
Author(s):  
D. Takegami ◽  
D. Kasinathan ◽  
K. K. Wolff ◽  
S. G. Altendorf ◽  
C. F. Chang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Photoelectron Spectroscopy ◽  
Spectroscopy Study ◽  
Transfer Energy ◽  
X Ray ◽  
Charge Transfer Energy

A photoelectron spectroscopy study of the charge-induced π-electronic structural changes in α.ω.-diphenyltetradecaheptaene, a model molecule for polyacetylene

1993 ◽  
Vol 57 (2-3) ◽  
pp. 4722-4727
Author(s):  
M. Lögdlund ◽  
P. Dannetun ◽  
S. Stafström ◽  
W.R. Salaneck ◽  
C. Fredriksson ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Structural Changes ◽  
Spectroscopy Study ◽  
Model Molecule

Experimental Assessment of the Practical Oxidative Stability of Lithium Thiophosphate Solid Electrolytes

2019 ◽  
Author(s):  
Georg Dewald ◽  
Saneyuki Ohno ◽  
Marvin Kraft ◽  
Raimund Koerver ◽  
Paul Till ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Solid State ◽  
Oxidative Stability ◽  
Photoelectron Spectroscopy ◽  
Solid Electrolytes ◽  
Stability Limit ◽  
Lithium Ion ◽  
High Energy ◽  
Redox Activity ◽  
Solid State Batteries

<p>All-solid-state batteries are often expected to replace conventional lithium-ion batteries in the future. However, the practical electrochemical and cycling stability of the best-conducting solid electrolytes, i.e. lithium thiophosphates, are still critical issues that prevent long-term stable high-energy cells. In this study, we use <i>stepwise</i><i>cyclic voltammetry </i>to obtain information on the practical oxidative stability limit of Li<sub>10</sub>GeP<sub>2</sub>S<sub>12</sub>, a Li<sub>2</sub>S‑P<sub>2</sub>S<sub>5</sub>glass, as well as the argyrodite Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolytes. We employ indium metal and carbon black as the counter and working electrode, respectively, the latter to increase the interfacial contact area to the electrolyte as compared to the commonly used planar steel electrodes. Using a stepwise increase in the reversal potentials, the onset potential at 25 °C of oxidative decomposition at the electrode-electrolyte interface is identified. X‑ray photoelectron spectroscopy is used to investigate the oxidation of sulfur(-II) in the thiophosphate polyanions to sulfur(0) as the dominant redox process in all electrolytes tested. Our results suggest that after the formation of these decomposition products, significant redox behavior is observed. This explains previously reported redox activity of thiophosphate solid electrolytes, which contributes to the overall cell performance in solid-state batteries. The <i>stepwise cyclic voltammetry</i>approach presented here shows that the practical oxidative stability at 25 °C of thiophosphate solid electrolytes against carbon is kinetically higher than predicted by thermodynamic calculations. The method serves as an efficient guideline for the determination of practical, kinetic stability limits of solid electrolytes. </p>

Experimental Assessment of the Practical Oxidative Stability of Lithium Thiophosphate Solid Electrolytes

2019 ◽  
Author(s):  
Georg Dewald ◽  
Saneyuki Ohno ◽  
Marvin Kraft ◽  
Raimund Koerver ◽  
Paul Till ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Solid State ◽  
Oxidative Stability ◽  
Photoelectron Spectroscopy ◽  
Solid Electrolytes ◽  
Stability Limit ◽  
Lithium Ion ◽  
High Energy ◽  
Redox Activity ◽  
Solid State Batteries

<p>All-solid-state batteries are often expected to replace conventional lithium-ion batteries in the future. However, the practical electrochemical and cycling stability of the best-conducting solid electrolytes, i.e. lithium thiophosphates, are still critical issues that prevent long-term stable high-energy cells. In this study, we use <i>stepwise</i><i>cyclic voltammetry </i>to obtain information on the practical oxidative stability limit of Li<sub>10</sub>GeP<sub>2</sub>S<sub>12</sub>, a Li<sub>2</sub>S‑P<sub>2</sub>S<sub>5</sub>glass, as well as the argyrodite Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolytes. We employ indium metal and carbon black as the counter and working electrode, respectively, the latter to increase the interfacial contact area to the electrolyte as compared to the commonly used planar steel electrodes. Using a stepwise increase in the reversal potentials, the onset potential at 25 °C of oxidative decomposition at the electrode-electrolyte interface is identified. X‑ray photoelectron spectroscopy is used to investigate the oxidation of sulfur(-II) in the thiophosphate polyanions to sulfur(0) as the dominant redox process in all electrolytes tested. Our results suggest that after the formation of these decomposition products, significant redox behavior is observed. This explains previously reported redox activity of thiophosphate solid electrolytes, which contributes to the overall cell performance in solid-state batteries. The <i>stepwise cyclic voltammetry</i>approach presented here shows that the practical oxidative stability at 25 °C of thiophosphate solid electrolytes against carbon is kinetically higher than predicted by thermodynamic calculations. The method serves as an efficient guideline for the determination of practical, kinetic stability limits of solid electrolytes. </p>

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