Local Structures in Crystalline and Amorphous Phases of Diglyme−LiCF3SO3and Poly(ethylene oxide)−LiCF3SO3Systems:  Implications for the Mechanism of Ionic Transport

2001 ◽  
Vol 34 (8) ◽  
pp. 2660-2666 ◽  
Author(s):  
Christopher P. Rhodes ◽  
Roger Frech
Keyword(s):  
Ethylene Oxide ◽  
Ionic Transport ◽  
Amorphous Phases ◽  
Local Structures ◽  
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>

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.

Crystalline and Amorphous Phases in the Poly(ethylene oxide)−LiCF3SO3System

1999 ◽  
Vol 32 (3) ◽  
pp. 808-813 ◽  
Author(s):  
Roger Frech ◽  
Sangramithra Chintapalli ◽  
Peter G. Bruce ◽  
Colin A. Vincent
Keyword(s):  
Ethylene Oxide ◽  
Amorphous Phases ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Ionic transport behavior in poly(ethylene oxide)–poly(propylene oxide)–poly(ethylene oxide) and LiClO4 complex

2008 ◽  
Vol 53 (5) ◽  
pp. 2448-2452 ◽  
Author(s):  
Xiao-Liang Wang ◽  
Li-Zhen Fan ◽  
Ao Mei ◽  
Fei-Yue Ma ◽  
Yuan-Hua Lin ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Propylene Oxide ◽  
Ionic Transport ◽  
Transport Behavior ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Poly Propylene

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>In this work, we study the effect of humidity on the ionic transport in the amorphous phase of poly(ethylene oxide) thin films via local dielectric spectroscopy measurements. We explored a controlled humidity range between 15 %RH and 50 %RH. AFM-based local dielectric imaging allowed us to obtain the thin films topography and dielectric contrast maps, simultaneously. No humidity effect on the film topography was observed whereas large variation of the dielectric signal occurred. In addition, we observed a clear dielectric contrast among different locations on the thin film surface. In two selected regions with high contrast in the dielectric maps, we performed nanoDielectric Spectroscopy (nDS) measurements covering the 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 were extracted being about 36%, independently of humidity conditions. On the contrary, 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>

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>

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