β-NMR measurements of molecular-scale lithium-ion dynamics in poly(ethylene oxide)-lithium-salt thin films

2017 ◽  
Vol 146 (24) ◽  
pp. 244903 ◽  
Author(s):  
Iain McKenzie ◽  
David L. Cortie ◽  
Masashi Harada ◽  
Robert F. Kiefl ◽  
C. D. Philip Levy ◽  
...  
Keyword(s):  
Thin Films ◽  
Ethylene Oxide ◽  
Lithium Salt ◽  
Lithium Ion ◽  
Ion Dynamics ◽  
Molecular Scale ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

scholarly journals β-NMR Measurements of Lithium Ion Transport in Thin Films of Pure and Lithium-Salt-Doped Poly(ethylene oxide)

2014 ◽  
Vol 136 (22) ◽  
pp. 7833-7836 ◽  
Author(s):  
Iain McKenzie ◽  
Masashi Harada ◽  
Robert F. Kiefl ◽  
C. D. Philip Levy ◽  
W. Andrew MacFarlane ◽  
...  
Keyword(s):  
Thin Films ◽  
Ethylene Oxide ◽  
Ion Transport ◽  
Lithium Salt ◽  
Lithium Ion ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

scholarly journals Effect of Environmental Humidity on the Ionic Transport of Poly(ethylene Oxide) Thin Films by Local Dielectric Spectroscopy

2019 ◽  
Author(s):  
Paul Markus ◽  
Daniel E Martínez-Tong ◽  
Georg Papastavrou ◽  
Angel Alegria
Keyword(s):  
Thin Films ◽  
Ethylene Oxide ◽  
Amorphous Phase ◽  
Dielectric Spectroscopy ◽  
Ionic Transport ◽  
Oxide Thin Films ◽  
Environmental Humidity ◽  
Dielectric Contrast ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

<div><div><div><p>The effect of humidity on the ionic transport in the amorphous phase of poly(ethylene oxide) thin films has been studied by via local dielectric spectroscopy. We explored a controlled humidity range between 15 %RH and 50 %RH. AFM-based local dielectric imaging allowed to obtain simultaneously the thin films topography and the corresponding dielectric contrast maps. No humidity effect on the film topography was observed whereas large variation of the dielectric signal could be detected. In addition, we observed a clear dielectric contrast in different locations on the thin film surface. At selected regions with high contrast in the dielectric maps, we performed nanoDielectric Spectroscopy (nDS) measurements covering the frequency range from 10 Hz to 100 kHz. By modeling these spectroscopy results, we quantified the conductivity of the amorphous phase of the semicrystalline poly(ethylene oxide) films. The crystalline fraction of the PEO thin films was extracted and found to be about 36%, independently of humidity. However, the average conductivity increased drastically from 2×10-10 to 5×10-9 S/cm, by changing environmental humidity in the explore %RH range.</p></div></div></div>

Systematic Control of Self-Seeding Crystallization Patterns of Poly(ethylene oxide) in Thin Films

2018 ◽  
Vol 51 (5) ◽  
pp. 1626-1635 ◽  
Author(s):  
Binghua Wang ◽  
Shaohua Tang ◽  
Yan Wang ◽  
Changyu Shen ◽  
Renate Reiter ◽  
...  
Keyword(s):  
Thin Films ◽  
Ethylene Oxide ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Systematic Control

scholarly journals Effect of environmental humidity on the ionic transport of poly(ethylene oxide) thin films, investigated by local dielectric spectroscopy

Soft Matter ◽  
2020 ◽  
Vol 16 (13) ◽  
pp. 3203-3208 ◽  
Author(s):  
Paul Markus ◽  
Daniel E. Martínez-Tong ◽  
Georg Papastavrou ◽  
Angel Alegria
Keyword(s):  
Thin Films ◽  
Relative Humidity ◽  
Ethylene Oxide ◽  
Dielectric Spectroscopy ◽  
Ionic Transport ◽  
Oxide Thin Films ◽  
Environmental Humidity ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

The laterally-resolved conductivity of PEO thin films increases with relative humidity, as determined by local dielectric spectroscopy: an AFM-based electrical technique.

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