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Nondilute 1,2-dichloroethane solution of poly(9,9-dioctylfluorene-2,7-diyl): A study on the aggregation process

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Abstract

Molecular aggregates in conjugated polymer (CP) solution can propagate into mesoscale morphology of the relevant film and further dominate the optoelectronic property. Herein, we probed the aggregation behavior of poly(9,9- dioctylfluorene-2,7-diyl) (PFO) and studied its influence on the photophysical property in 1,2-dichloroethane (DCE) solution, where the contents of β-phase or -aggregates increased with prolonged aging time. Thereinto, high quality β-film was fabricated from DCE solution with critical aggregate time of 6 min. The film exhibited excellent surface morphology and characteristic emission of β-phase. Meanwhile, films prepared from aged DCE solutions exhibited high crystallinity, which was promising to obtain higher photoluminance efficiency and charge transport ability simultaneously. Therefore, it is significant to get deep insight into the aggregation behavior of CP, which is involved not only with the solution-processing technology of plastic device, but also with the optoelectronic property of CP.

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Author information

Authors and Affiliations

  1. Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China

    Meng-na Yu, Bin Liu, Ling-hai Xie & Wei Huang  (黄维)

  2. Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), Nanjing, 211816, China

    Jin-yi Lin  (林进义), Feng Liu, Wen-sai Zhu & Wei Huang  (黄维)

  3. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China

    Tao Li & Dan Lu  (陆丹)

  4. The Blackett Laboratory, Imperial College London, Prince Consort Road, London, SW7 2AZ, UK

    Jin-yi Lin  (林进义)

Authors
  1. Meng-na Yu
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  2. Bin Liu
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  3. Jin-yi Lin  (林进义)
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  4. Tao Li
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  5. Dan Lu  (陆丹)
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  6. Feng Liu
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  7. Wen-sai Zhu
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  8. Ling-hai Xie
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  9. Wei Huang  (黄维)
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Corresponding authors

Correspondence to Jin-yi Lin  (林进义), Dan Lu  (陆丹) or Wei Huang  (黄维).

Additional information

This work was financially supported by the National Key Basic Research Program of China (973) (No. 2015CB932200), the National Natural Science Funds for Excellent Young Scholar (No. 21322402), the National Natural Science Foundation of China (Nos. 21504041, 21274064 and 61475074), University of Jiangsu Province Natural Science Foundation Project (No. 14KJB510027), Natural Science of the Education Committee of Jiangsu Province (No. 15KJB430019), Jiangsu Planned Projects for Postdoctoral Research Funds (No. 1501019B), China Postdoctoral Science Foundation (No. 2015M580419), SICAM Fellowship, Imperial College London and Open Project from State Key Laboratory of Supramolecular Structure and Materials at Jilin University (No. sklssm201612).

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Yu, Mn., Liu, B., Lin, Jy. et al. Nondilute 1,2-dichloroethane solution of poly(9,9-dioctylfluorene-2,7-diyl): A study on the aggregation process. Chin J Polym Sci 34, 1311–1318 (2016). https://doi.org/10.1007/s10118-016-1851-z

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  • DOI: https://doi.org/10.1007/s10118-016-1851-z

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