Solution-processable and thermally cross-linkable fluorene-cored triple-triphenylamines with terminal vinyl groups to enhance electroluminescence of MEH-PPV: Synthesis, curing, and optoelectronic properties

Chia Shing Wu, Ya Ju Yang, Szu Wen Fang, Yun Chen

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

This study reports the synthesis, curing, and optoelectronic properties of a solution-processable, thermally cross-linkable electron- and hole-blocking material containing fluorene-core and three periphery N-phenyl-N-(4-vinylphenyl) benzeneamine (FTV). The FTV exhibited good thermal stability with T d above 478 °C in nitrogen atmosphere. The FTV is readily cross-linked via terminal vinyl groups by heating at 160 °C for 30 min to obtain homogeneous film with excellent solvent resistance. Multilayer PLED device [ITO/PEDOT:PSS/cured-FTV/MEH-PPV/Ca (50 nm)/Al (100 nm)] was successfully fabricated using solution processed. Inserting cured-FTV is between PEDOT:PSS and MEH-PPV results in simultaneous reduction in hole injection from PEDOT:PSS to MEH-PPV and blocking in electron transport from MEH-PPV to anode. The maximum luminance and maximum current efficiency were enhanced from 1810 and 0.27 to 4640 cd/m 2 and 1.08 cd/A, respectively, after inserting cured-FTV layer. Current results demonstrate that the thermally cross-linkable FTV enhances not only device efficiency but also film homogeneity after thermal curing. FTV is a promising electron- and hole-blocking material applicable for the fabrication of multilayer PLEDs based on PPV derivatives.

原文English
頁(從 - 到)3875-3884
頁數10
期刊Journal of Polymer Science, Part A: Polymer Chemistry
50
發行號18
DOIs
出版狀態Published - 2012 9月 15

All Science Journal Classification (ASJC) codes

  • 聚合物和塑料
  • 有機化學
  • 材料化學

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