Abnormal Capacitance Increasing at Elevated Temperature in Tantalum Capacitors with PEDOT:PSS Electrodes
Due to the importance of capacitance temperature stability in precise analog circuit applications, capacitance instability at elevated temperature of 125°C was investigated in tantalum capacitors with PEDOT:PSS counter electrodes. Capacitance-voltage measurement supposed that residual ions in the PE...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Active and Passive Electronic Components |
| Online Access: | http://dx.doi.org/10.1155/2018/9864387 |
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| _version_ | 1832552583141523456 |
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| author | Qifeng Pan Qiao Liu Yuanjiang Yang Dongbin Tian |
| author_facet | Qifeng Pan Qiao Liu Yuanjiang Yang Dongbin Tian |
| author_sort | Qifeng Pan |
| collection | DOAJ |
| description | Due to the importance of capacitance temperature stability in precise analog circuit applications, capacitance instability at elevated temperature of 125°C was investigated in tantalum capacitors with PEDOT:PSS counter electrodes. Capacitance-voltage measurement supposed that residual ions in the PEDOT:PSS dispersion caused an accumulation of charges at the dielectric-cathode interface which contributed to an increase in the dielectric constant and resulted in the capacitance increasing at high temperature. Based on the hypothesis, water wash process was applied and capacitance dropped significantly at high temperature. This study shows that an additional water wash process is necessary to improve the capacitance temperature stability after each dispersion dip step. |
| format | Article |
| id | doaj-art-a0fa27bbdb464d798702251ca4bfbd72 |
| institution | Kabale University |
| issn | 0882-7516 1563-5031 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Active and Passive Electronic Components |
| spelling | doaj-art-a0fa27bbdb464d798702251ca4bfbd722025-02-03T05:58:25ZengWileyActive and Passive Electronic Components0882-75161563-50312018-01-01201810.1155/2018/98643879864387Abnormal Capacitance Increasing at Elevated Temperature in Tantalum Capacitors with PEDOT:PSS ElectrodesQifeng Pan0Qiao Liu1Yuanjiang Yang2Dongbin Tian3College of Big Data and Information Engineering, Guizhou University, P.O. Box 550025, Guiyang, Guizhou, ChinaCollege of Big Data and Information Engineering, Guizhou University, P.O. Box 550025, Guiyang, Guizhou, ChinaXinyun Electronics Components Corporation, P.O. Box 550018, Guiyang, Guizhou, ChinaXinyun Electronics Components Corporation, P.O. Box 550018, Guiyang, Guizhou, ChinaDue to the importance of capacitance temperature stability in precise analog circuit applications, capacitance instability at elevated temperature of 125°C was investigated in tantalum capacitors with PEDOT:PSS counter electrodes. Capacitance-voltage measurement supposed that residual ions in the PEDOT:PSS dispersion caused an accumulation of charges at the dielectric-cathode interface which contributed to an increase in the dielectric constant and resulted in the capacitance increasing at high temperature. Based on the hypothesis, water wash process was applied and capacitance dropped significantly at high temperature. This study shows that an additional water wash process is necessary to improve the capacitance temperature stability after each dispersion dip step.http://dx.doi.org/10.1155/2018/9864387 |
| spellingShingle | Qifeng Pan Qiao Liu Yuanjiang Yang Dongbin Tian Abnormal Capacitance Increasing at Elevated Temperature in Tantalum Capacitors with PEDOT:PSS Electrodes Active and Passive Electronic Components |
| title | Abnormal Capacitance Increasing at Elevated Temperature in Tantalum Capacitors with PEDOT:PSS Electrodes |
| title_full | Abnormal Capacitance Increasing at Elevated Temperature in Tantalum Capacitors with PEDOT:PSS Electrodes |
| title_fullStr | Abnormal Capacitance Increasing at Elevated Temperature in Tantalum Capacitors with PEDOT:PSS Electrodes |
| title_full_unstemmed | Abnormal Capacitance Increasing at Elevated Temperature in Tantalum Capacitors with PEDOT:PSS Electrodes |
| title_short | Abnormal Capacitance Increasing at Elevated Temperature in Tantalum Capacitors with PEDOT:PSS Electrodes |
| title_sort | abnormal capacitance increasing at elevated temperature in tantalum capacitors with pedot pss electrodes |
| url | http://dx.doi.org/10.1155/2018/9864387 |
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