Asymmetric leakage in (Ba, Sr)TiO3 nanoparticle/parylene-C composite capacitors
| Autor: | Nadia K. Pervez, Ioannis Kymissis, Limin Huang, Daniel A. Steigart, Stephen O'Brien, Shyuan Yang, Brian R. Tull, Eli S. Leland |
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| Rok vydání: | 2012 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics business.industry Composite number Nanoparticle Nanotechnology Polymer Condensed Matter Physics law.invention Capacitor chemistry law Electrode Nano Materials Chemistry Optoelectronics Physical and Theoretical Chemistry Thin film business Leakage (electronics) |
| Zdroj: | Journal of Polymer Science Part B: Polymer Physics. 51:35-38 |
| ISSN: | 0887-6266 |
| Popis: | Nanoparticle polymer composite capacitors have been examined for some time as a route to high performance, printable capacitors. One approach to creating these compo- sites is to use a particle film together with vapor deposited polymers, which can yield high performance, but also forms a structurally asymmetric device. The performance of a nano- particle (Ba, Sr)TiO3 (BST)/parylene-C composite capacitor is compared to that of a nanoparticle BST capacitor without the polymer layer under both directions of bias. The composite device shows a five orders of magnitude improvement in the leakage current under positive bias of the bottom electrode relative to the pure-particle device, and four orders of magni- tude improvement when the top electrode is positively bi- ased. The voltage tolerance of the device is also improved and asymmetric (44 V vs. 28 V in bottom and top positive bias, respectively). This study demonstrates the advantage of this class of composite device construction, but also shows that proper application of the device bias in this type of asym- metrical system can yield an additional benefit. V C 2012 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 000: 000-000, 2012 |
| Databáze: | OpenAIRE |
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