Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers
Hybrid nanotube composite systems with two different types of fillers attract considerable attention in several applications. The incorporation of secondary fillers exhibits conflicting behaviors of the electrical conductivity, which either increases or decreases according to the dimension of second...
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MDPI AG
2020-05-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/10/2410 |
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| author | Jungmin Lee Yesol Yun Sang Hyun Lee Jinyoung Hwang |
| author_facet | Jungmin Lee Yesol Yun Sang Hyun Lee Jinyoung Hwang |
| author_sort | Jungmin Lee |
| collection | DOAJ |
| description | Hybrid nanotube composite systems with two different types of fillers attract considerable attention in several applications. The incorporation of secondary fillers exhibits conflicting behaviors of the electrical conductivity, which either increases or decreases according to the dimension of secondary fillers. This paper addresses quantitative models to predict the electrical performance in the configuration of two dimensional systems with one-dimensional secondary fillers. To characterize these properties, Monte Carlo simulations are conducted for percolating networks with a realistic model with the consideration of the resistance of conducting NWs, which conventional computational approaches mostly lack from the common assumption of zero-resistance or perfect conducting NWs. The simulation results with nonperfect conductor NWs are compared with the previous results of perfect conductors. The variation of the electrical conductivity reduces with the consideration of the resistance as compared to the cases with perfect conducting fillers, where the overall electrical conductivity solely originates from the contact resistance caused by tunneling effects between NWs. In addition, it is observed that the resistance associated with the case of invariant conductivity with respect to the dimension of the secondary fillers increases, resulting in the need for secondary fillers with the increased scale to achieve the same electrical performance. The results offer useful design guidelines for the use of a two-dimensional percolation network for flexible conducting electrodes. |
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| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T19:37:50Z |
| publishDate | 2020-05-01 |
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| spelling | doaj.art-931a6dd1f9154933a4a1339bda9d4b972023-11-20T01:33:14ZengMDPI AGMaterials1996-19442020-05-011310241010.3390/ma13102410Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber FillersJungmin Lee0Yesol Yun1Sang Hyun Lee2Jinyoung Hwang3School of Electronics and Information Engineering, Korea Aerospace University, Goyang-si 10540, KoreaSchool of Electrical Engineering, Korea University, Seoul 02841, KoreaSchool of Electrical Engineering, Korea University, Seoul 02841, KoreaSchool of Electronics and Information Engineering, Korea Aerospace University, Goyang-si 10540, KoreaHybrid nanotube composite systems with two different types of fillers attract considerable attention in several applications. The incorporation of secondary fillers exhibits conflicting behaviors of the electrical conductivity, which either increases or decreases according to the dimension of secondary fillers. This paper addresses quantitative models to predict the electrical performance in the configuration of two dimensional systems with one-dimensional secondary fillers. To characterize these properties, Monte Carlo simulations are conducted for percolating networks with a realistic model with the consideration of the resistance of conducting NWs, which conventional computational approaches mostly lack from the common assumption of zero-resistance or perfect conducting NWs. The simulation results with nonperfect conductor NWs are compared with the previous results of perfect conductors. The variation of the electrical conductivity reduces with the consideration of the resistance as compared to the cases with perfect conducting fillers, where the overall electrical conductivity solely originates from the contact resistance caused by tunneling effects between NWs. In addition, it is observed that the resistance associated with the case of invariant conductivity with respect to the dimension of the secondary fillers increases, resulting in the need for secondary fillers with the increased scale to achieve the same electrical performance. The results offer useful design guidelines for the use of a two-dimensional percolation network for flexible conducting electrodes.https://www.mdpi.com/1996-1944/13/10/2410nano-compositesMonte Carlo simulationpercolation networkselectrical conductivity |
| spellingShingle | Jungmin Lee Yesol Yun Sang Hyun Lee Jinyoung Hwang Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers Materials nano-composites Monte Carlo simulation percolation networks electrical conductivity |
| title | Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers |
| title_full | Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers |
| title_fullStr | Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers |
| title_full_unstemmed | Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers |
| title_short | Numerical Characterization for Electrical Conductivity of Two-Dimensional Nanocomposite Systems with Conducting Fiber Fillers |
| title_sort | numerical characterization for electrical conductivity of two dimensional nanocomposite systems with conducting fiber fillers |
| topic | nano-composites Monte Carlo simulation percolation networks electrical conductivity |
| url | https://www.mdpi.com/1996-1944/13/10/2410 |
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