Elucidation of mechanism of memory effect in photoswitching and development of new device

光开关记忆效应机制的阐明及新器件的开发

• 批准号: 21750184
• 负责人: IIMORI Toshifumi
• 金额: $ 3万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21750184/
• 关键词: 有機導体; 光誘起相転移; 有機分子エレクトロニクス; 超伝導; 非線形伝導; 有機導電体; 光スイッチング; 有機デバイス; 外部電場効果

Organic conductors, which are organic crystals having high electrical conductivity, show conductivity switching to highly conductive state in the presence of laser light and pulsed electric fields. The highly conductive state can persist after the cease of photoirradiation because of memory effect, of which the mechanism is studied through the experiments in a variety of conditions. Moreover, time-resolved measurement technique of property change induced by photoexcitation is applied to organic superconductor, and characteristic behaviors in photoresponse are observed.

有机导体是具有高导电性的有机晶体，在激光和脉冲电场的作用下，表现出向高导电性状态的电导转换。由于记忆效应，这种高导电性状态在光照射停止后仍能继续存在，通过各种条件下的实验研究了其机理。此外，将光激发引起的性质变化的时间分辨测量技术应用于有机超导体，观察到了光响应的特征行为。

项目成果

Time-resolved measurement of the photoinduced change in the electrical conductivity of the organic superconductor kappa-(BEDT-TTF)2Cu[N(CN)2]Br

有机超导体 kappa-(BEDT-TTF)2Cu[N(CN)2]Br 光致电导率变化的时间分辨测量

• 发表时间: 2010
• 期刊: The Journal of Physical Chemistry C
• 作者: Iimori;T.; Naito;T.; Ohta;N.
• 通讯作者: N.

Comparative study of electroabsorption spectra of polar and nonpolar organic molecules in solution and in a polymer film

溶液中和聚合物薄膜中极性和非极性有机分子电吸收光谱的比较研究

• 发表时间: 2009
• 期刊: J.Chem.Phys. 131
• 作者: J.Tayama;T.Iimori;N.Ohta
• 通讯作者: N.Ohta

A novel optoelectronic function in an organic conductor: memory effect of photoswitching behavior controlled by pulsed electric fields and Photoirradiation

有机导体中的新型光电功能：脉冲电场和光照射控制的光开关行为的记忆效应

• 发表时间: 2009
• 作者: T. Iimori;et al.
• 通讯作者: et al.

Photoinduced switching of electrical conductivity and its memory effect in the organic conductor α-(BEDT-TTF)_2I_3: Dependence on voltage height and temporal width of pulsed voltages

有机导体α-(BEDT-TTF)_2I_3中电导率的光致切换及其记忆效应：对电压高度和脉冲电压时间宽度的依赖性

• 发表时间: 2010
• 期刊: Physica B: Condensed Matter
• 作者: T. Iimori;T. Naito;N. Ohta
• 通讯作者: N. Ohta

Time-resolved measurement of the photoresponse in the organic superconductor κ-(BEDT-TTF)_2Cu[N(CN)_2]Br

有机超导体κ-(BEDT-TTF)_2Cu[N(CN)_2]Br光响应的时间分辨测量

• 发表时间: 2010
• 作者: T. Iimori;et al.
• 通讯作者: et al.