2015
DOI: 10.1111/jace.13774
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MnO2 Thin Film Electrodes for Enhanced Reliability of Thin Glass Capacitors

Abstract: Many dielectric thin films for energy storage capacitors fail by thermal breakdown events under high-field drive conditions. The lifetime of the device can be improved under conditions where the current path within the defect regions in dielectrics is eliminated. Self-healing electrodes were developed by depositing a manganese dioxide (MnO 2 ) thin film between the glass substrate and an aluminum film. For this purpose, thin films of MnO 2 on boroaluminosilicate glass were fabricated via chemical solution depo… Show more

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Cited by 16 publications
(5 citation statements)
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“…It is interesting and relevant to note that the transition temperature for the transformation of Ba-stabilized α-MnO 2 to Mn 2 O 3 depends strongly on the Ba 2+ ion content, with the transition temperature varying from 600 to 675 °C when the Ba:Mn ratio varies between 0.04 and 0.1. 39 3.9. UV Raman Spectroscopy.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…It is interesting and relevant to note that the transition temperature for the transformation of Ba-stabilized α-MnO 2 to Mn 2 O 3 depends strongly on the Ba 2+ ion content, with the transition temperature varying from 600 to 675 °C when the Ba:Mn ratio varies between 0.04 and 0.1. 39 3.9. UV Raman Spectroscopy.…”
Section: Resultsmentioning
confidence: 99%
“…The combined XRD, TGA and DSC data therefore provide evidence that some oxygen is lost from the α-MnO 2 structure before the transformation to, and crystallization of Mn 2 O 3 occurs, thereby reducing the ability of the structurally modified, oxygen-deficient α-MnO 2 framework to reaccommodate water at temperatures above ∼400 °C. It is interesting and relevant to note that the transition temperature for the transformation of Ba-stabilized α-MnO 2 to Mn 2 O 3 depends strongly on the Ba 2+ ion content, with the transition temperature varying from 600 to 675 °C when the Ba:Mn ratio varies between 0.04 and 0.1 …”
Section: Resultsmentioning
confidence: 99%
“…The positions of these modes are most easily identified in the Raman spectrum of the spent 3K Mn3O4 at approximately 398, 500, 551, and 576 cm −1 (Figure 10), and are assigned to cryptomelane [35][36][37]. While some peaks, such as the peak at 551 cm −1 , might be ascribed as hollandite MnO2 instead of cryptomelane, hollandite MnO2 presence is unlikely because it also has an intense Raman mode at ~700 cm −1 which is not observed in any of the sample sets [38]. Birnessite MnO2 presence is also not observed by Raman, since Birnessite has a sharp peak at ~740 cm −1 [39].…”
Section: Raman Spectroscopymentioning
confidence: 99%
“…4,5 In thin film form the dielectric strength increases considerably, partially due to one dimension being at nanoscale which allows a better heat dissipation, keeps trapping rate below the detrapping rate and decreases the probability of finding critical defect concentrations. 6,7 The nanoscale dimension may increase Young's modulus (𝑌) as the layer becomes thinner and results in elevated breakdown electric field as this parameter follows the relation, 𝐸 ∝ 𝑌 , where the exponent 𝑛 varies with thickness. 8 Basically, dielectric breakdown can be caused by a number of successive physical processes such as avalanche and field emission break, thermal breakdown produced by increasing conductance from Joule heating, an electromechanical collapse brought on by the attractive forces between electrodes, electrochemical deterioration, dendrite formation, etc.…”
mentioning
confidence: 99%