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Gold Thin Film as Transition Layer in Electrode Design of Na2O−PbO−Nb2O5−SiO2 Glass-Ceramic Capacitors

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Abstract:

The electrical properties and microstructure of Na2O−PbO−Nb2O5−SiO2 glass-ceramic capacitors with pre-sputtered gold film as the transition layer in electrode design were investigated. SEM observation and EDS analysis showed that the presence of gold transition layer would eliminate enormously the Ag diffusion into the dielectric layer, resulting in a smooth and dense interface contact with less porous defects near the electrode/dielectric layer region. The electrical property results indicated that the leakage current and dielectric loss had decreased by about an order of magnitude and 20%, respectively. These results were explained by the weakened diffusion of silver into dielectric layer due to the presence of gold transition layer in between the silver paste/dielectric interface.

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Periodical:

Materials Science Forum (Volume 687)

Pages:

457-462

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.687.457

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Online since:

June 2011

Authors:

Jun Zhu, Jun Luo, Qing Meng Zhang, Qun Tang, Jun Du

Keywords:

Electrode Structure, Glass-Ceramic Capacitor, Gold Thin Film, Transition Layer

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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