| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Electric Field Analysis of Space Charge Injection from a Conductive Nano-Filler Electrode |
XIAO Chun, ZHANG Ye-Wen, ZHENG Fei-Hu, WEI Wen-Jie, AN Zhen-Lian |
| Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092 |
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| Cite this article: |
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XIAO Chun, ZHANG Ye-Wen, ZHENG Fei-Hu et al 2010 Chin. Phys. Lett. 27 077303 |
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Abstract A simulation on the electric field distribution near the electrode is proposed to explain the reason for using nanosized carbon black mixed with ethylene vinyl acetate, as the electrode could lead to more charge injection into the polymer than using a deposited metal electrode. The electrode is simplified to a layer of conductive semi-spheres with fixed size and constant electric potential. By using the finite element method, it is found that both the size of the semi-spheres and the distance between adjacent semi-spheres could dramatically influence the electric field near the surface of the spheres; these are considered to be the two decisive factors for the charge injecting rate at electrodes of various materials.
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| Keywords:
73.40.Ty
77.22.Jp
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Received: 22 January 2010
Published: 28 June 2010
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| PACS: |
73.40.Ty
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(Semiconductor-insulator-semiconductor structures)
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77.22.Jp
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(Dielectric breakdown and space-charge effects)
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