The effects of different oxidants on the characteristics of conductive polymer aluminum solid electrolyte capacitors
- Authors
- Kim, Myeongjin; Yoo, Jeeyoung; Im, Hyungu; Kim, Jooheon
- Issue Date
- 15-May-2013
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Aluminum solid electrolyte capacitors; Conductive polymer; Poly(3,4-ethylenedioxythiophene; Doping level
- Citation
- JOURNAL OF POWER SOURCES, v.230, pp 1 - 9
- Pages
- 9
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 230
- Start Page
- 1
- End Page
- 9
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/14640
- DOI
- 10.1016/j.jpowsour.2012.12.038
- ISSN
- 0378-7753
1873-2755
- Abstract
- Three kinds of oxidant are synthesized, ferric benzenesulfonate (Fe(OBs)(3)), ferric 4-methylbenzenesulfonate (Fe(OMBs)(3)), and ferric 4-ethylbenzenesulfonate (Fe(OEBs)(3)). Then, 3,4-ethylenedioxythiophene (EDOT) is polymerized with these oxidants to obtain benzenesulfonate-doped poly(3,4- ethylenedioxythiophene) (PEDOT-OBs), 4-methyl-benzenesulfonate-doped poly(3,4- ethylenedioxythiophene) (PEDOT-OMBs) and 4-ethyl-benzenesulfonate-doped poly(3,4- ethylenedioxythiophene) (PEDOT-OEBs), respectively. PEDOT-OBs had the highest surface conductivity among the fabricated materials, because PEDOT-OBs had a better defined crystalline structure than the other polymers and the doping concentration of PEDOT-OBs is much higher than that of PEDOT-OMBs and PEDOT-OEBs. The capacitance of PEDOT-OBs is higher than those of PEDOT-OMBs and PEDOT-OEBs while the equivalent series resistance (ESR) and leakage current values of PEDOT-OMBs is lower than those of PEDOT-OMBs and PEDOT-OEBs because of the high electrical conductivity and low amount of undoped oxidant in PEDOT-OBs. Thermal degradation of all polymerized materials occur in the range of 300-330 degrees C, indicating that all of the polymerized materials had excellent thermal stability. (C) 2012 Elsevier B.V. All rights reserved.
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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