Study on Relationship between Electroluminescence Properties and Molecular Weight Distribution of Poly(9,9$'$-dioctylfluorene) Using Photoluminescence

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概要

• 論文の詳細を見る

• Polyfluorenes (PFs) have attracted attention as conjugated polymer materials that can be promising as polymer-based emissive displays. PFs have a blue emission, a high photoluminescence (PL) quantum yield and thermal and chemical stabilities. The highly efficient blue emission from the PF structure is attractive for a display consisting of polymer light-emitting diodes (LEDs). We synthesized 10 kinds of poly(9,9$'$-dioctylfluorene) (PDOF) of different molecular weight distributions and studied their PL and electroluminescence properties. Moreover, we also studied their fluorescent lifetime. As a result, we found that optimum molecular weight of PF-based LEDs is about $10^{5}$. From this result, it is thought that it is important to control the molecular weight of PDOF for PF-based LEDs.

• 2005-01-15

著者

• Yamamoto Takakazu

  Chemical Resources Lab. Tokyo Inst. Of Technol.

• Mori Tatsuo

  Department Of Electrical Engineering And Computer Science Graduate School Of Engineering Nagoya University

• Mizutani Teruyoshi

  Department of Electrical and Electronic Engineering, Aichi Institute of Technology, Toyota, Aichi 470-0529, Japan

• Mizutani Teruyoshi

  Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan

• Fujishima Daisuke

  Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan

• Kitamura Naoyuki

  JFE Chemical Corporation, 9-2 Kokan-cho, Kasaoka, Okayama 714-0063, Japan

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