电介质
材料科学
宽带
聚酰亚胺
吸收(声学)
摩尔吸收率
光电子学
计算机科学
光学
复合材料
电信
纳米技术
图层(电子)
物理
作者
N. Sivagangi Reddy,Chang‐Sik Ha
出处
期刊:Nanomaterials
[MDPI AG]
日期:2023-07-17
卷期号:13 (14): 2090-2090
被引量:14
摘要
The rapid development of communication networks (5G and 6G) that rely on high-speed devices requiring fast and high-quality intra- and inter-terminal signal transmission media has led to a steady increase in the need for high-performance, low-dielectric-constant (Dk) (<2.5) materials. Consequently, low-dielectric polymeric materials, particularly polyimides (PIs), are very attractive materials that are capable of meeting the requirements of high-performance terminal devices that transmit broadband high-frequency signals. However, such a PI needs to be properly designed with appropriate properties, including a low Dk, low dielectric loss (Df), and low water absorptivity. PI materials are broadly used in various fields owing to their superior property/processibility combinations. This review summarizes the structural designs of PIs with low Dk and Df values, low water-absorbing capacity, and high optical transparency intended for communication applications. Furthermore, we characterize structure-property relationships for various PI types and finally propose structural modifications required to obtain useful values of the abovementioned parameters.
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