通过人工智能驱动的发现,无形化聚合物电子具有改善的电荷稳定性,用于收集能量
Zetian Mao1, Chi Chen2, Yucheng Zhang1
1Department of Mechanical Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8656, Japan.
Advanced materials (Deerfield Beach, Fla.)
|July 15, 2023
概括
研究人员发现电离潜力是充电无形化聚合物电极的关键描述因素. 这导致了高度稳定的电极的开发,这些电极有可能用于增强的能量收集设备.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 介电材料 介电材料
背景情况:
- 电材料,带有被困电荷的介电材料,对于振动能量收获器和声学传感器等应用至关重要.
- 无形化聚合物为电位应用提供了潜力,但需要优化充电性能.
研究的目的:
- 确定一个描述符来量化无形化聚合物电极的充电性能.
- 为能源采集应用发现具有增强充电稳定性和寿命的新型电子材料.
主要方法:
- 利用电离潜力作为电极充电性能的描述符.
- 采用高通量计算和图形神经网络模型,在循环透明光学聚合物 (CYTOP) 上选功能组.
- 合成并实验性地表征了有前途的电位材料.
主要成果:
- 从选1,176,591个功能组中确定了3个新型电位.
- 合成了15微米厚的薄膜,在1500小时以上的时间内显示稳定的双极表面电位高于±3.1kV.
- 在80°C下估计寿命为146年,这表明基于CYTOP的电电器在充电稳定性上有显著的改进.
结论:
- 电离电位是预测和优化电位充电性能的有效描述器.
- 开发的电极表现出异常的稳定性和寿命,增强了振动能量收集的潜力.
- 深度学习加速了用于高级应用的实用材料的发现.
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