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Progress on Light-Emitting Electrochemical Cells toward Blue Emission, High Efficiency, and Long Lifetime

机译：发光电化学电池对蓝色发射，高效率和长寿命的进展

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摘要

Since their emergence in the 1990s, light-emitting electrochemical cells (LECs) have attracted much attention due to their unique properties and potential for use as an alternative technology for illuminations and displays. After decades of development, however, the performance of LECs remains far from satisfactory for practical applications, in particular for those requiring blue light. Efforts have been made to develop of highly efficient blue-emitting materials and more advanced device structures, aiming at realizing blueshifted emission, enhancing efficiency, and extending prolonged device lifetimes. A timely review into the current state of blue LECs is deemed imperative, as a full understanding of the molecular and device design strategy and identification of the major challenges that must be addressed to realize practical applications is necessary. A specific summary of recent progress on blue LECs is provided, with the focus placed on design strategies for blue emitters for LECs and device structures with respect to color tuning, efficiency enhancement, and stability improvement. Finally, the direction of development strategies in the future is suggested.
机译：自20世纪90年代的出现以来，由于其独特的特性和用作照明和显示器的替代技术，发光电化学电影（LEC）引起了很多关注。然而，经过数十年的发展，LECs的表现仍然远非令人满意的实际应用，特别是对于需要蓝光的人。已经努力开发高效的蓝色发光材料和更先进的装置结构，旨在实现蓝色的发射，提高效率和延长的设备寿命。及时审查目前的蓝色LEC状态是必要的，作为对分子和设备设计策略的全面理解，以及确定必须解决的主要挑战，以实现实际应用是必要的。提供了最近的蓝色LEC进展的具体摘要，专注于对LECS和器件结构的蓝色发射器的设计策略，以及彩色调整，效率提高和稳定性改进。最后，建议了未来发展战略的方向。

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  • 来源
    《Advanced Functional Materials》 |2020年第33期|1907156.1-1907156.35|共35页
  • 作者

    Zhang Chen; Liu Ruihuan; Zhang Dongdong; Duan Lian;

  • 作者单位

    Tsinghua Univ Key Lab Organ Optoelect & Mol Engn Minist Educ Dept Chem Beijing 100084 Peoples R China;

    Tsinghua Univ Key Lab Organ Optoelect & Mol Engn Minist Educ Dept Chem Beijing 100084 Peoples R China;

    Tsinghua Univ Key Lab Organ Optoelect & Mol Engn Minist Educ Dept Chem Beijing 100084 Peoples R China;

    Tsinghua Univ Key Lab Organ Optoelect & Mol Engn Minist Educ Dept Chem Beijing 100084 Peoples R China|Tsinghua Univ Ctr Flexible Elect Technol Beijing 100084 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    blue light emission; electrochemical cells; device structure optimization; materials design;

    机译：蓝光发射;电化学电池;器件结构优化;材料设计;

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