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首页> 外文期刊>Advanced Functional Materials >Flexible Multi-Colored Electrochromic and Volatile Polymer Memory Devices Derived from Starburst Triarylamine-Based Electroactive Polyimide
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Flexible Multi-Colored Electrochromic and Volatile Polymer Memory Devices Derived from Starburst Triarylamine-Based Electroactive Polyimide

机译：源自Starburst三芳基胺基电活性聚酰亚胺的柔性多色电致变色和挥发性聚合物存储器件

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摘要

Flexible multi-colored electrochromic and volatile memory devices are fabricated from a solution-processable electroactive aromatic polyimide with starburst triarylamine unit. The polyimide prepared by the chemical imidiza-tion was highly soluble in many organic solvents and showed useful levels of thermal stability associated with high glass-transition temperatures. The polyimide with strong electron-donating capability possesses static random access memory behavior and longer retention time than other 6FDA-based polyimides. The differences of the highest-occupied and lowest unoccupied molecular orbital levels among these polyimides with different electron-donating moieties are investigated and the effect on the memory behavior is demonstrated. The polymer film shows reversible electrochemical oxidation and electrochromism with high contrast ratio both in the visible range and near-infrared region, which also exhibits high coloration efficiency, low switching time, and the outstanding stability for long-term electrochromic operation. The highly stable electrochromism and interesting volatile memory performance are promising properties for the practical flexible electronics applications in the future.
机译：柔性多色电致变色和易失性存储设备由具有星爆三芳基胺单元的可溶液处理的电活性芳族聚酰亚胺制成。通过化学酰亚胺化制备的聚酰亚胺在许多有机溶剂中高度可溶，并显示出与高玻璃化转变温度相关的有用的热稳定性水平。与其他基于6FDA的聚酰亚胺相比，具有强大的供电子能力的聚酰亚胺具有静态的随机存取记忆行为和更长的保留时间。研究了这些具有不同供电子部分的聚酰亚胺中最高占据和最低未占据分子轨道水平的差异，并证明了其对记忆行为的影响。聚合物膜在可见光范围和近红外区域均显示出高对比度的可逆电化学氧化和电致变色，还表现出较高的着色效率，较低的切换时间和出色的长期电致变色操作稳定性。高度稳定的电致变色和令人感兴趣的易失性存储性能是将来在实际的柔性电子应用中很有希望的特性。

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  • 来源
    《Advanced Functional Materials》 |2013年第42期|5307-5316|共10页
  • 作者

    Hung-JuYen; Chin-JungChen; Guey-ShengLiou;

  • 作者单位

    Functional Polymeric Materials Laboratory Institute of Polymer Science and Engineering National Taiwan University 1 Roosevelt Road, 4th Sec., Taipei 10617, Taiwan;

    Functional Polymeric Materials Laboratory Institute of Polymer Science and Engineering National Taiwan University 1 Roosevelt Road, 4th Sec., Taipei 10617, Taiwan;

    Functional Polymeric Materials Laboratory Institute of Polymer Science and Engineering National Taiwan University 1 Roosevelt Road, 4th Sec., Taipei 10617, Taiwan;

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