成分渐变多层陶瓷电容器。
Compositionally Graded Multilayer Ceramic Capacitors.
作者信息
Song Hyun-Cheol, Zhou Jie E, Maurya Deepam, Yan Yongke, Wang Yu U, Priya Shashank
机构信息
Center for Energy Harvesting Materials and System (CEHMS), Bio-Inspired Materials and Devices Laboratory (BMDL), Virginia Tech, VA, 24061, USA.
Center for Electronic Materials, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.
出版信息
Sci Rep. 2017 Sep 27;7(1):12353. doi: 10.1038/s41598-017-12402-7.
Multilayer ceramic capacitors (MLCC) are widely used in consumer electronics. Here, we provide a transformative method for achieving high dielectric response and tunability over a wide temperature range through design of compositionally graded multilayer (CGML) architecture. Compositionally graded MLCCs were found to exhibit enhanced dielectric tunability (70%) along with small dielectric losses (<2.5%) over the required temperature ranges specified in the standard industrial classifications. The compositional grading resulted in generation of internal bias field which enhanced the tunability due to increased nonlinearity. The electric field tunability of MLCCs provides an important avenue for design of miniature filters and power converters.
多层陶瓷电容器（MLCC）广泛应用于消费电子产品中。在此，我们通过设计成分渐变多层（CGML）结构，提供了一种在宽温度范围内实现高介电响应和可调性的变革性方法。研究发现，成分渐变的MLCC在标准工业分类规定的所需温度范围内，表现出增强的介电可调性（70%）以及小的介电损耗（<2.5%）。成分渐变导致内部偏置场的产生，由于非线性增加而增强了可调性。MLCC的电场可调性为微型滤波器和功率转换器的设计提供了一条重要途径。
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