Photoinduced Displacement current across organic-monolayrs and the development of monolayr-memory devices

有机单层光致位移电流和单层存储器件的开发

• 批准号: 04452170
• 负责人: IWAMOTO Mitsumasa
• 金额: $ 4.29万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04452170/
• 关键词: Maxuell-displacenent current; Largmuir-Blodgel Films; Poly imaide; Organic Memory device; Tummling Conduction Current; Inelastic tunneling spectroscopy; Maxwell-displacetiont currpent measurement; Electrical property; Maxuell-displacenent current; Largmuir-Blodgel Films; Poly imaide; Organic Memory device; Tummling Conduction Current; Inelastic tunneling spectroscopy; Maxwell-displacetiont currpent measurement; Electrical property

The purpose of this project was to examine the electrical and optical properties of organic single monolayrs on the basis of physics of dielectrics, and then to develop organic-monolayr memory devices using photoinduced displacement current across the monolayr. Photoisomerization of monolayr films containing Azo-dye prepared on a water surface was found to be detected by means of Maxwell-displacement-currentmeasuring-technique developed by the present investigators. The desplacement current was reversely generated across single monolayrs in opposite directions by alternately irradiation of visible and ultra-violet lights. This phenomenon was applied to the development of organic-monolayr memory devices using single monolayrs prepared on solid substrates. We then fabricated tunnel junction with polyimide Langmuir-Blodgett films. The electron transport mechanism through the films was examined by means of I-V and d^2V/dI^2-V measurements. It was found that electrons tunnel scross across the films without loss of their own energy. Based on this information, we fabricated monolayr devices using polymide as a tunneling barrier, and we also fabricated monolayr devices using polyimide with functional entities.

该项目的目的是根据电介质物理学检查有机单单层的电气和光学特性，然后使用整个Monolayr上的光诱导的位移电流开发有机单层存储器。发现通过本研究人员开发的Maxwell-Dispracement-currentmemeentmemeentmemeentermecter-the Fient of Thectosemation在水面上发现了含有偶氮-DYE的单层膜的光异构化。通过对可见的和超紫罗莱氏光的辐照，在相反的方向上沿相反的方向互相产生了备置电流。这种现象应用于使用在固体底物上制备的单个单层的有机单层存储器开发。然后，我们用聚酰亚胺Langmuir-Blodgett膜制造了隧道连接。通过I-V和D^2V/DI^2-V测量值检查了通过膜的电子传输机制。发现电子隧道在整个电影中都散布而不会损失自己的能量。基于这些信息，我们使用多聚酯作为隧道障碍制造了单层设备，并且还使用与功能实体的聚酰亚胺制造了Monolayr设备。