Thermally Stable OLED Materials Based on Aromatic Spirocyclic Structures for Full-Color Displays

用于全彩显示器的基于芳香螺环结构的热稳定 OLED 材料

• 批准号: 14550789
• 负责人: KIMURA Makoto
• 金额: $ 2.24万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550789/
• 关键词: Display devices; Organic light emitting diodes; Thermal stability; Hole transport materials; Aromatic compounds; Glass transition temperature; Spirocyclic; Propellane; ELデバイス; 発光材料; 芳香族; ジベンゾクリセン; 発光層材料; ジベンゾ[g, p]クリセン

The current OLEDs (organic light emitting diodes) as a next-generation display to liquid crystals need advanced materials with high electroluminescent (EL) performance and high stability for further commercial use. The present study has explored new compounds having stable aromatic spirocyclic structures as hole transport materials (HTMs) in OLEDs.1.A new trispirocyclic aromatic compound containing fluorene moieties was devised and derivatized for an effective HTM. The novel material was found to show 170℃ of glass transition temperature (Tg) allowing practical use and also execllent EL characteristics.2.As a new synthetic material for optoelectronics, fluorenone dimethyl acetal was prepared uniquely by an electrooxidative method using bis (trimethylsilyl) fluorenone; other methods are not accessible.3.An aromatic [4.4.4] propellane was utilized for thermally stable HTMs. The representative HTM substructure was incorporated into the core from 1 to 3 units. All of them revealed high Tg's as well as excellent EL characteristics. These results show our molecular design is effective as leading postulate for efficient HTMs.4.Another approach was accomplished by use of oligomers obtained by novel cyclopolymerization of functionalized fluorenes.

目前的OLED（有机发光二极管）作为液晶的下一代显示器，需要具有高电致发光（EL）性能和高稳定性的先进材料才能进一步商业化应用。本研究探索了具有稳定芳香螺环结构作为空穴的新化合物。 OLED 中的传输材料（HTM）。1.设计并衍生了一种含有芴部分的新型三螺环芳香族化合物，以实现有效的 HTM。 170℃的玻璃化转变温度（Tg）可供实际使用，并且具有优异的EL特性。2.芴酮二甲缩醛作为一种新型光电合成材料，采用双（三甲基硅基）芴酮通过电氧化方法独特制备而成，是其他方法无法达到的； .3.芳香族[4.4.4]丙烷用于热稳定HTM，代表性的HTM子结构被纳入1的核心中。至 3 个单元。这些结果表明我们的分子设计作为高效 HTM 的主要假设是有效的。4.另一种方法是通过使用通过官能化芴的新型环聚合获得的低聚物来实现。

项目成果

New 9-Fluorence-type Trispirocyclic Compounds for Thermally Stable Hole Transport Materials in OLEDs

用于 OLED 热稳定空穴传输材料的新型 9 荧光型三螺环化合物

• 发表时间: 2005
• 期刊: J. Mater. Chem. 15
• 作者: M.Kimura;S.Kuwano;Y.Sawaki;H.Fujikawa;K.Noda;Y.Taga;K.Takagi
• 通讯作者: K.Takagi

Utilization of an Aromatic [4. 4. 4] Propellane for Thermally Stable Hole-Transport Materials in OLEDs

芳香族化合物的利用[4．

• 发表时间: 2006
• 期刊: Bull. Chem. Soc. Jpn. 79, (in press)
• 作者: M.Kimura;S.Kuwano;K.Shimada;R.Kamata;S.Yasuda;Y.Sawaki;H.Fujikawa;K.Noda;Y.Taga;K.Takagi
• 通讯作者: K.Takagi

Utilization of an Aromatic[4.4.4]Propellane for thermally Stable Hole-Transport Materials in OLEDs

利用芳香族[4.4.4]丙烷作为 OLED 中的热稳定空穴传输材料

• 发表时间: 2006
• 期刊: Bull.Chem.Soc.Jpn. 79(印刷中)
• 作者: M.Kimura;S.Kuwano;K.shimada;R.Kawata;S.Yasuda;Y.Sawaki;H.Fujikawa;K.Noda;Y.Taga;K.Takagi
• 通讯作者: K.Takagi

Utilization of Bis (trimethylsily1) fluorine as Protected Fluorenes and Fluorenones. Effective Electooxidation into Fluorene Dimethyl Acetales

使用双(三甲基甲硅烷基1)氟作为受保护的芴和芴酮。

• 发表时间: 2004
• 期刊: Electrochemistry 72
• 作者: M.Kimura;T.Kawai;Y.Sawaki
• 通讯作者: Y.Sawaki

Utilization of Bis(trimethylsilyl)fluorine as Protected Fluorenones and Fluorenones.Effective Electooxidation into Fluorene Dimethyl Acetales

双(三甲基甲硅烷基)氟作为受保护的芴酮和芴酮的利用。有效电氧化成芴二甲基乙缩醛

• 发表时间: 2004
• 期刊: Electrochemistry 72
• 作者: M.Kimura;T.Kawai;Y.Sawaki
• 通讯作者: Y.Sawaki