Development of Organic Memory Devices Using Radical Polymers

使用自由基聚合物开发有机存储器件

• 批准号: 21655043
• 负责人: NISHIDE Hiroyuki
• 金额: $ 1.82万
• 依托单位: Waseda University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21655043/
• 关键词: 機能性高分子; レドックスポリマー; 電子移動; 電荷注入; 有機メモリ

Organic aliphatic polymers bearing a redox-active robust radical pendant per repeating unit have been applied as key materials for organic polymer memo-ries that are viewed as next-generation memory devices. Synthesis of the so-called radical polymers with designed SOMO levels and elucidation of charge injection mechanisms at polymer/metal interfaces allowed fabrication of nonvolatile memories with ON/OFF ratio of more than 10^5, high cycle durability, and excellent bistability. Factors that dominate the electric bistability in response to the applied voltage have been determined, which offered insight into the design principles of entirely organic organic memories. Thin devices made of the radical polymer layers sandwiched by two metal electrodes demonstrated the mem-ory properties at low applied voltages, which were based on the characteristic charge in-jection and transport behaviors found for the radical polymers.

每个重复单元带有氧化还原活性的稳健自由基侧链的有机脂肪族聚合物已被用作有机聚合物存储器的关键材料，有机聚合物存储器被视为下一代存储器件。具有设计的SOMO能级的所谓自由基聚合物的合成以及聚合物/金属界面的电荷注入机制的阐明使得能够制造具有超过10^5的开/关比、高循环耐久性和优异的双稳态的非易失性存储器。已经确定了影响所施加电压的电双稳态的因素，这提供了对完全有机存储器的设计原理的深入了解。由夹在两个金属电极之间的自由基聚合物层制成的薄器件展示了低施加电压下的记忆特性，这是基于自由基聚合物的特征电荷注入和传输行为。

项目成果

Radical Poly-mers for Organic Electronics : A Radical Departure from Conjugated Polymers

用于有机电子的激进聚合物:与共轭聚合物的彻底背离

• 发表时间: 2009
• 期刊: Adv. Mater.
• 作者: K. Oyaizu;H. Nishide
• 通讯作者: H. Nishide

Mesoscale Rad-ical Polymers : Bottom-up Fabrication of Electrodes in Organic Polymer Batteries, Advanced Nanomaterials ed by K. Geckeler, H. Nishide

介观尺度自由基聚合物：有机聚合物电池中电极的自下而上制造，先进纳米材料，作者：K. Geckeler、H. Nishide

• 发表时间: 2010
• 作者: K. Oyaizu;H. Nishide
• 通讯作者: H. Nishide

Polyradicals in Batteries, Encyclopedia of Radicals in Chemistry, Biology and Materials

电池中的多自由基，化学、生物学和材料自由基百科全书

• 发表时间: 2012
• 作者: K. Oyaizu;H. Nishide
• 通讯作者: H. Nishide

有機ラジカル電池最先端電池と材料,最先端材料システムワンポイントシリーズ

有机自由基电池、尖端电池及材料、尖端材料体系一点系列

• 发表时间: 2012
• 作者: 小柳津研一;西出宏之
• 通讯作者: 西出宏之

Synthesis of Poly(oxoammonium salt)s and Their Electrical Properties in the Organic Thin Film Device

• DOI: 10.1246/cl.2009.1160
• 发表时间: 2009-11
• 期刊: Chemistry Letters
• 影响因子: 1.6
• 作者: Takeo Suga;Shunya Takeuchi;Takanori Ozaki;M. Sakata;K. Oyaizu;H. Nishide