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首页> 外文期刊>Advanced Functional Materials >Fully-Inkjet-Printed Ag-Coil/NiZn-Ferrite for Flexible Wireless Power Transfer Module: Rigid Sintered Ceramic Body into Flexible Form
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Fully-Inkjet-Printed Ag-Coil/NiZn-Ferrite for Flexible Wireless Power Transfer Module: Rigid Sintered Ceramic Body into Flexible Form

机译：用于柔性无线电力传输模块的全喷墨印刷Ag-Coil / NiZn铁氧体：刚性烧结陶瓷体，形成柔性形式

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摘要

Despite the material performances being superior to those of organic materials, inorganic materials are typically excluded for use in flexible and deformable electronic systems because of their rigid nature and the requirement for high processing temperature. This work presents a novel method of utilizing rigid NiZn-ferrite films in a flexible platform and offers an opportunity to realize a flexible wireless power transfer (WPT) module. Inkjet printing is introduced in this study since it can coat NiZn-ferrite films as well as pattern inductor coils for WPTs. A thermochemically inert buffer layer is selected based on a thermodynamic analysis and is introduced as a buffer layer for the NiZn-ferrite to prevent chemical reaction between the ferrite film and the substrate and ensure that the ferrite film can be easily separated from the substrate during a high-temperature sintering process. A Ag-inductor coil is printed on the NiZn-ferrite layer, and then the entire layer is embedded into polydimethylsiloxane, which renders the WPT module flexible. The flexibility of the WPT module is characterized by a bending test, and the structural and magnetic properties are also investigated. The performance of the flexible WPT module is demonstrated by transmitting wireless power to a light emitting diode.
机译：尽管材料性能优于有机材料，但由于其刚性和对高处理温度的要求，无机材料通常不用于柔性和可变形电子系统。这项工作提出了一种在柔性平台中利用刚性NiZn铁氧体薄膜的新颖方法，并为实现柔性无线功率传输（WPT）模块提供了机会。由于可以覆盖NiZn铁氧体薄膜以及WPT的图案电感线圈，因此引入了喷墨打印。根据热力学分析选择热化学惰性缓冲层，并引入该缓冲层作为NiZn铁氧体的缓冲层，以防止铁氧体膜与基材之间发生化学反应，并确保在加工过程中可以轻松地将铁氧体膜与基材分离。高温烧结工艺。将银电感线圈印刷在NiZn铁氧体层上，然后将整个层嵌入聚二甲基硅氧烷中，这使WPT模块具有柔性。 WPT模块的柔性通过弯曲测试来表征，并且还研究了其结构和磁性。通过将无线电力传输到发光二极管来演示柔性WPT模块的性能。

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