Grain-boundary effect in calcium thin films

Renucci, P.; Gaudart, L.; Petrakian, J.P.; Roux, D.

doi:10.1103/physrevb.26.5416

Cited by 15 publications

(10 citation statements)

References 36 publications

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“…Over a period of time, the changes observed in calcium resistance vary. This could be explained on the formation of islands of calcium grain boundaries with moisture that forms poor connectivity between grain layers and at low thickness (∼50 nm) of calcium layers, the scattering of electron flow at their grain boundary is high and determines permeability behavior of films . AB series films exhibit uniform penetration rate; when compared to B series films (Fig.…”

Section: Resultsmentioning

confidence: 99%

Effect of silane functionalized alumina on poly(vinyl butyral) nanocomposite films: Thermal, mechanical, and moisture barrier studies

et al. 2013

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In this work, a hybrid‐polymer nanocomposite film, based on polyvinyl butyral/amino‐silane functionalized nano alumina, was fabricated by melt processing. The calcium degradation measurements suggest the functionalized nanocomposite films exhibit higher resistance towards moisture penetration as compared to the neat alumina loaded films. Thermal stability, mechanical strength, and contact angle studies of the composites were also conducted to evaluate the performance of the functionalized alumina loaded films. These nanocomposite films were encapsulated over Al/P3HT/ITO Schottky structured device. The changes observed in the current density of the devices to the applied voltage before and after accelerated aging conditions are presented. The nanocomposite with functionalized alumina films exhibits 50% change in current density, which is superior to that attained with neat and non‐functionalized films. POLYM. COMPOS., 35:1426–1435, 2014. © 2013 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

Effect of silane functionalized alumina on poly(vinyl butyral) nanocomposite films: Thermal, mechanical, and moisture barrier studies

et al. 2013

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“…It can be observed that the resistivity of calcium is dependent on the film thickness. 38 It is found to be constant only above the thickness of 100 nm for calcium. Therefore, WVTR through the composite films was calculated considering the change in thickness from 200 nm to 100 nm.…”

Section: Water Vapour Permeability Determinationmentioning

confidence: 99%

Flexible poly(vinyl alcohol-co-ethylene)/modified MMT moisture barrier composite for encapsulating organic devices

2013

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Flexible, nano-composite moisture barrier films of poly(vinyl alcohol-co-ethylene) with surface modified montmorillonite fabricated by solution casting were used to encapsulate organic devices. The composite films were characterized by FTIR, UV-visible spectroscopy and SEM imaging. Thermal and mechanical properties of the composite films were studied by DSC and UTM. Calcium degradation test was used to determine the transmission rate of water vapour through the composite films, which showed a gradual reduction from y0.1 g m 22 day 21 to 0.0001 g m 22 day 21 with increasing modified montmorillonite loading in the neat copolymer. The increase in moisture barrier performance is attributed to the decreased water vapour diffusivity due to matrix-filler interactions in the composite. The accelerated aging test was carried out for non-encapsulated and encapsulated devices to evaluate the efficiency of the encapsulants.The encapsulated devices exhibited longer lifetimes indicating the efficacy of the encapsulant.

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“…The above equation is applicable only when resistivity (r) of calcium is constant and can be considered above 100 nm thickness of calcium. 34 Therefore, only the data between 200 nm to 100 nm was considered in the calculations.…”

Section: Permeability Studiesmentioning

confidence: 99%

A Surlyn/magnesium oxide nanocomposite as an effective water vapor barrier for organic device encapsulation

et al. 2015

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Grain-boundary effect in calcium thin films

Cited by 15 publications

References 36 publications

Effect of silane functionalized alumina on poly(vinyl butyral) nanocomposite films: Thermal, mechanical, and moisture barrier studies

Effect of silane functionalized alumina on poly(vinyl butyral) nanocomposite films: Thermal, mechanical, and moisture barrier studies

Flexible poly(vinyl alcohol-co-ethylene)/modified MMT moisture barrier composite for encapsulating organic devices

A Surlyn/magnesium oxide nanocomposite as an effective water vapor barrier for organic device encapsulation

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