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Synthesis and characterization of new polyfluorene derivatives: using phenanthro[9,10-d]imidazole group as a building block for deep blue light-emitting polymer

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Abstract

A series of novel polyfluorene derivatives P1/4, P2/4, and P3/4, containing phenanthro[9,10-d]imidazole group on backbone are designed, synthesized, and well characterized. They all show high-molecular weights, good solubilities, and excellent thermal stabilities. The CV results of all three compounds show the lower LUMO levels and higher HOMO levels than PF. Among them, P3/4 exhibits deep blue emission both in solution and in solid state. The PLED based on P3/4 shows higher device performance and locates in the deep blue region with a CIE coordinate of (0.17, 0.08).

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Acknowledgments

We are grateful for support from the National Science Foundation of China (Grant Nos. 20704016, 21174050), the Ministry of Education of China (Grant No. 20070183202).

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Authors and Affiliations

  1. State Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Avenue, Changchun, 130012, People’s Republic of China

    Zhiming Wang, Zhao Gao, Shanfeng Xue, Yulong Liu, Wensi Zhang, Cheng Gu, Fangzhong Shen, Ping Lu & Yuguang Ma

  2. School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang, 111003, People’s Republic of China

    Zhiming Wang

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  1. Zhiming Wang
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Correspondence to Ping Lu.

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Wang, Z., Gao, Z., Xue, S. et al. Synthesis and characterization of new polyfluorene derivatives: using phenanthro[9,10-d]imidazole group as a building block for deep blue light-emitting polymer. Polym. Bull. 69, 273–289 (2012). https://doi.org/10.1007/s00289-012-0710-5

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  • DOI: https://doi.org/10.1007/s00289-012-0710-5

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