软的多轴分子铁电薄膜与自动供电的宽带光检测
Shiguo Han1,2, Yu Ma1,2, Lina Hua1,2
1State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
Journal of the American Chemical Society
|October 28, 2022
概括
使用HA2EA2Pb3I10开发了具有宽带光电活性的软分子铁电膜 (MFF). 这些灵活的薄膜具有多轴极化和自动供电的宽带检测,推进光电子应用.
科学领域:
- 材料科学
- 固态物理
- 纳米技术
背景情况:
- 分子铁电膜 (MFF) 由于其多轴性质,对微型电子非常重要.
- 现有的软MFF在宽带光电活动方面扎,因为光刺激的泄漏电流降解了铁电,限制了光电子设备的应用.
研究的目的:
- 为灵活的光电子设备构建一个具有增强光电活性的新型多轴MFF.
- 调查新材料的铁电和光反应性质,以了解潜在的应用.
主要方法:
- 合成了一个二维多层矿材料,HA2EA2Pb3I10 (1).
- 通过对称性破坏分析 (4/mmFm物种) 进行了多轴极化.
- 制造了螺旋涂层的柔性薄膜,并测量了它们的平面内自发偏振,宽带吸收和自动供电的光反应.
主要成果:
- 这种材料呈现出八个相当的极化方向,这是2D多层矿中观察到的最大值.
- 柔性膜显示在平面上的自发偏振 (P=1.8μC/cm2) 和宽带吸收 (~1.83 eV).
- 在软膜上实现了自动供电的宽带检测 (在637nm照明下~0.55μA/cm2).
结论:
- 开发的HA2EA2Pb3I10多年财政框架显示出灵活和可穿戴光电子设备的巨大潜力.
- 这项工作为使用二维分子铁电材料设计先进的灵活光电子设备提供了新的途径.
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