共价有机框架的可调平面曲率,使其具有出色的介电,电网和高温处理性能
Donglin Chen1, Jinpeng Li1, Xudong Mei2
1Key Laboratory of Advanced Polymer Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China.
Angewandte Chemie (International ed. in English)
|November 15, 2023
概括
我们开发了新的共价有机框架 (COF) 薄膜,用于先进的电子设备. 这些材料具有非常低的介电性质和高的热稳定性,非常适合下一代设备.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 电气工程 电气工程
背景情况:
- 集成电路需要具有低介电常数/损耗和高热稳定的材料,以防止信号延迟和交叉声.
- 联有机框架 (COF) 提供高孔隙性,热稳定性和结构性可调性,适用于低电流应用.
- 通过合/平面曲率调制优化COF介电性质仍未得到充分探索.
研究的目的:
- 创新地为先进的电子应用程序准备具有可调平面曲率的COF薄膜.
- 研究这些新型COF膜的介电和电位特性.
- 提供一种可扩展的方法,用于生产具有优越介电和电位特性的材料.
主要方法:
- 制备具有可调平面曲率的COF薄膜.
- 介电性质的表征 (介电常数和损耗) 在各种频率和温度下.
- 使用热重力测量分析评估热稳定性.
- 通过测量水接触角度来评估疏水性.
- 测量用于电位应用的表面电位.
主要成果:
- 实现了超低的介电常数 (1.9在1kHz) 和介电损耗 (0.0029在室温,0.0052在200°C).
- 证明了高的热分解温度 (473°C为5%的体重损失) 和良好的疏水性 (接触角度105.3°).
- 报告了高表面电位 (≈320 V) 保留一个星期,表明了电位电位.
结论:
- 开发的COF薄膜同时具有出色的介电和电位性能,以及高的加工温度.
- 调整COF平面曲率是优化介电性能的一个有效策略.
- 这些材料为先进的电子设备应用提供了一个有希望的,可扩展的解决方案.
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