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arXiv:1210.7904 (cond-mat)
[Submitted on 30 Oct 2012 (v1), last revised 21 Nov 2012 (this version, v2)]

Title:A possible mechanism for the negative capacitance observed in organic devices

Authors:X. Q. Wang, C. B. Cai
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Abstract:The mechanism of negative capacitance, e.g. inductance, induced by a sufficient electrical field in the organic device is investigated. The cations in organic bulk are proposed to be driven by the applied voltage and to accumulate at the interface, and further to generate the surface states or media states. These states result in a larger junction current through the device, indicating the negative capacitances which are simulated in three situations: impedance spectrum, capacitance measurement and current response. This simple kinetic model may be helpful to understand why the negative capacitance phenomenon is observed in various organic devices.
Comments: 14 pages; 4 figures
Subjects: Materials Science (cond-mat.mtrl-sci); Chemical Physics (physics.chem-ph)
Cite as: arXiv:1210.7904 [cond-mat.mtrl-sci]
  (or arXiv:1210.7904v2 [cond-mat.mtrl-sci] for this version)
  https://doi.org/10.48550/arXiv.1210.7904

Submission history

From: Xiaoqi Wang [view email]
[v1] Tue, 30 Oct 2012 05:09:11 UTC (322 KB)
[v2] Wed, 21 Nov 2012 04:52:14 UTC (316 KB)
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