Highly Transparent, Highly Thermally Stable Nanocellulose/Polymer Hybrid Substrates for Flexible OLED Devices
编号:4 访问权限:私有 更新:2021-11-03 09:36:17 浏览:403次 口头报告

报告开始:2021年11月20日 17:15(Asia/Shanghai)

报告时间:20min

所在会场:[P] The 3rd International Symposium on Nanocellulosic Materials-Room 1 [S1] Oral Session 1

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摘要
Flexible organic light-emitting diode (OLED) devices based on polymer substrates have attracted worldwide attention. However, the current OLED polymer substrates are limited to weak thermal stability, which is not compatible with the high-temperature in OLED fabrication. Here, we developed a novel nanocellulose/polyarylate (PAR) hybrid polymer substrate with both high transparency and excellent thermal properties. Benefiting from the nanometer scale of the cellulose nanofibrils (CNFs) and the efficient interfacial interaction with PAR, the substrate exhibited greatly improved thermal stability, with a glass transition temperature of 192°C, the thermal decomposition temperature of 501°C, and upper operating temperature up to over 220°C. Meanwhile, the hybrid substrate exhibits outstanding mechanical properties. Notably, no apparent transparency loss was observed after the CNF addition, and the hybrid substrate maintains a high transmittance of 85% and a low haze of 1.75%@600 nm. Moreover, OLED devices fabricated on the hybrid substrates exhibit much improved optoelectrical performance than that fabricated on the conventional PET substrates. We anticipate this research will open up a new route for fabricating flexible high-performance OLEDs.
关键词
Cellulose nanofiber, transparent, thermally stable, substrate, organic light-emitting diode (OLED), flexible display
报告人
Jinsong Tao
Associate Professor South China University of Technology

稿件作者
Jinsong Tao South China University of Technology
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重要日期
  • 会议日期

    11月20日

    2021

    11月21日

    2021

  • 11月16日 2021

    初稿截稿日期

  • 11月18日 2021

    报告提交截止日期

  • 11月18日 2021

    注册截止日期

主办单位
China Paper Industry Technical Association
承办单位
South China University of Technology
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