FABRICATION OF POLARIZED EMITTING DEVICES WITH INTERFACE-CONTROLLED CONJUGATED ORGANIC THIN FILMS

界面控制共轭有机薄膜偏振发射器件的制备

基本信息

批准号：
13555020
负责人：
UEDA Yasukiyo
金额：
$ 2.88万
依托单位：
Kobe University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

项目摘要

Organic thin films have high potential for next generation photoelectronic and photonic materials. Their physical properties heavily depend on the molecular orientation in the film. In this project, we aim to fabrication and characterization of low dimensional orientation-controlled organic thin films for electronic and photonic devices.The structure and optical properties of sigma-and pi-conjugated oligomers such as oligo-dimethylsilane (ODMS) and distyrylbenzene derivatives (timer of poly(p-phenylene vinylene) : PPV) vapor-deposited on uniaxially oriented polydimethylsilane (PDMS) and PPV films. ODMS and DSBs grew epitaxially on the PDMS and PPV layers. The ODMS/PDMS and DSBs/PPV double layers indicated the remarkable anisotropic feature in absorption and emission properties. The dichroic ratio of absorption and emission intensities were about 15 and 10, respectively. We succeeded in preparation of polarized emitting oligomer films as novel photonic materials.Uniaxially oriented pentacene films were also fabricated. The electrical property of pentacene/PTFE double layer also indicated anisotropic feature. The field effect mobility along to the traverse of the friction direction was 4.2x10^<-1>cm^2/Vs. We succeeded in preparation of high performance organic FET films.Thin film of J-aggregate of merocyanine (BTET) was prepared from vapor phase. Oriented structure and formation mechanism of J-aggregate were clarified. Moreover, liquid crystal (LC) cells were prepared by using Langmuir-Blodgett films of azobenzene as a substrate. Photochemical regulation of LC alignment depended on adsorption structure of azobenzene. The relative transmittance of the cell was changed reversibly by UV and visible light irradiation. These films had high potential for optical memory.Research results obtained in this project will be expected to contribute the fabrication of new photoelectronic and photonic devices with organic compounds

有机薄膜对于下一代光电子和光子材料具有很高的潜力。它们的物理特性在很大程度上取决于膜中的分子方向。在这个项目中，我们旨在制造和表征用于电子和光子设备的低维取向控制的有机薄膜。Sigma和Sigma和Pi结合的寡聚的结构和光学特性，例如寡二甲基硅烷（ODMS）和Distyrylbenzene衍生物（ODM）聚（p-苯基乙烯基）的计时器：PPV）在单轴向的聚二甲基硅烷（PDMS）和PPV膜上蒸气沉积。 ODM和DSB在PDMS和PPV层上的外世生长。 ODM/PDMS和DSB/PPV双层表明吸收和发射特性具有显着的各向异性特征。吸收和发射强度的二分法比率分别约为15和10。我们成功地制定了偏光化的低聚物膜作为新的光子材料。五苯/PTFE双层的电性能也表明各向异性特征。沿着摩擦方向的轨道迁移率为4.2x10^<-1> cm^2/vs。我们成功地制定了高性能有机FET膜。从蒸气阶段制备了Merocyanine（BTET）的J种群的薄膜。阐明了J种聚物的定向结构和形成机理。此外，通过使用偶氮苯作为底物的Langmuir-Blodgett膜制备液晶（LC）细胞。 LC比对的光化学调节取决于偶氮苯的吸附结构。细胞的相对透射率通过紫外线和可见光照射可逆地改变。这些电影具有很高的光学记忆潜力。