Recent Advances of Photoluminescence Polyimides

Yang Ting-ting; Zhou Zhu-xin; Zhang Yi; Liu Si-wei; Chi Zhen-guo; Xu Jia-rui

doi:10.11777/j.issn1000-3304.2017.16221

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Recent Advances of Photoluminescence Polyimides

Reviews | 更新时间：2021-03-19

- Recent Advances of Photoluminescence Polyimides
- Acta Polymerica Sinica Issue 3, Pages: 411-428(2017)
- 作者机构：
  
  中山大学聚合物复合材料及功能材料教育部重点实验室高性能树脂基复合材料广东省重点实验室广东省高性能有机聚合物光电功能薄膜工程技术研究中心化学学院广州 510275
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2017.16221
  CLC：
- Published：2017-3，
  
  Received：6 July 2016，
  
  Revised：19 July 2016，
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Yang Ting-ting, Zhou Zhu-xin, Zhang Yi, Liu Si-wei, Chi Zhen-guo, Xu Jia-rui. Recent Advances of Photoluminescence Polyimides. [J]. Acta Polymerica Sinica (3):411-428(2017)
DOI：

Yang Ting-ting, Zhou Zhu-xin, Zhang Yi, Liu Si-wei, Chi Zhen-guo, Xu Jia-rui. Recent Advances of Photoluminescence Polyimides. [J]. Acta Polymerica Sinica (3):411-428(2017) DOI： 10.11777/j.issn1000-3304.2017.16221.

摘要

聚酰亚胺是一类重要的高性能高分子材料，具有优异的热性能、机械性能、电学性能和尺寸稳定性等，同时具有良好的结构可设计性，已逐渐成为有机光电领域的研究热点.然而，传统聚酰亚胺材料一般不发光，文献中有关发光聚酰亚胺的研究并不多.同时，所报道的荧光量子产率普遍较低，极大地限制了其作为发光功能层在有机光电器件领域的应用.为了更好地了解聚酰亚胺发光的规律，拓展高性能聚酰亚胺材料在有机发光器件中的应用领域，本文介绍了聚酰亚胺光致发光的机理，综述了国内外有关光致发光聚酰亚胺的研究进展，总结了提高聚酰亚胺荧光量子产率的方法，并对未来高性能高效发光聚酰亚胺材料的研究方向做了展望.

Abstract

Polyimides (PIs) are a class of representative high-performance polymers possessing a number of merits

such as high thermal stability

good mechanical and electrical properties

superior dimensional stability

and designable structures. They have important potential applications in the fields of organic optoelectric industries. However

traditional polyimides are in general non-luminescent. Studies of polyimides as light-emitting materials are rare. The photoluminescence quantum efficiency reported is quite low

mainly due to the strong inter- and intra-molecular charge-transfer (CT) interaction of polyimides

which greatly restricts their applications as light-emitting functional layer in the organic optoelectric fields. In order to better understand the general rules of light-emitting behavior of polyimides

and to broaden their application fields in the organic light-emitting diode

this review gives a presentation on the photoluminescence mechanism of polyimides that have been developed

including the formation of locally excited (LE) state and charge transfer (CT) state in the typical donor-acceptor polyimide structures

and the influence for both of the states on their respective photoluminescence process. The recent advances of photoluminescence polyimides as well as the methods to improve the fluorescence quantum yield of polyimides are also provided. Reviewing the polyimides with high photoluminescence quantum yield is focused mainly on the introduction of heterocyclic chromophores (like triphenylamine

pyridine

coumarin

dioxazole

porphyrin

etc

.) and fused-ring chromophores (like naphthalene

anthracene

pyrene

perylene

fluorene

etc

.) into the main chain or the side chain of the aromatic polyimides. These methods would improve more or less the luminescence intensity without sacrificing the comprehensive properties of the polyimides

but there still be a long way to go as the fluorescence may be weakened by the condensed stacking of the chromophores. In another aspect

some researchers also introduced chromophores into semi-aliphatic polyimides

and found it an efficient way to develop highly fluorescent polyimides

because these aliphatic structures in the polymer backbone would effectively limit the intra-CT interactions

and finally form LE emission. However

the overall properties of these semi-aliphatic functional polyimides would be greatly decreased

and their work functions were difficult to match with the metal electrodes

which would greatly limit their applications. Therefore

to obtain the key technologies for the controllable preparation of highly-efficient luminescent polyimides and the controllable adjustment of the luminescent color would be the most important research directions in the near future

which would be of great interest to develop the applications in the fields of photo electronic devices

energy saving and environmental protection for high-performance and high-efficiency light-emitting polyimides.

关键词

聚酰亚胺光致发光CT作用结构研究进展

Keywords

PolyimidePhotoluminescenceCT interactionsStructureRecent advances

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PCFM Lab, GD HPPC Lab, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, Sun Yat-sen University

Chemistry and Environmental Engineering, Yangtze University

State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences

School of Chemical Engineering, University of Chinese Academy of Sciences

School of Chemical Engineering, University of Science and Technology Liaoning

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