FABRICATION OF ONE-DIMENSIONALLY ALIGNMENT-CONTROLLED ORGANIC NANO STRUCTURE AND CREATION OF ANISOTROPIC OPTO/ELECTRONIC DEVICES

一维取向控制有机纳米结构的制造和各向异性光学/电子器件的创建

基本信息

批准号：
16360040
负责人：
UEDA Yasukiyo
金额：
$ 8.64万
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：
2004
资助国家：
日本
起止时间：
2004 至 2006
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. Pentacene was vapor-deposited on a friction-transferred PTFE layer. The polarized absorption spectra of pentacene/PTFE double layer showed an anisotropic feature. Pentacene oriented uniaxially taking edge-on state on a PTFE layer. 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 4.2×10-1cm2/Vs. We succeeded in preparation of high performance organic FET films. Polarized polymer light-emitting diodes (PLEDs) have been constructed utilizing friction-transferred poly(9,9-dioctylhorene) (PFO) thin films. The friction transfer technique al … More lowed an oriented PFO to be deposited directly onto an indium tin oxide anode without an alignment layer such as polyimide. Polarized absorption and hotoluminescence spectra revealed that the polymer backbones are highly aligned in the friction direction. We fabricated PLEDs consisting of friction-transferred PFO as an emissive layer, vacuum-deposited bathocuproine as an electron transport and hole-blocking layer, and a vacuum-deposited LiF/A1 cathode. Highly polarized blue emission with an integrated polarization ratio of 31 and a luminance of up to 300 cd/m2 was observed from the PLEDs. Photo-induced molecular alignment behavior of azo dye derivative on a fused silica substrate prepared by spin-coating method was also investigated. When azo film was irradiated by linearly polarized UV light, the longitudinal direction of azo molecules aligned along the normal direction against to the polarization direction of irradiated UV light. The dichroic ratio of absorption intensity (I_⊥/I_<//>) of azo film after UV light irradiation was 6. Photo-induced alignment mechanism of azo molecule was explained by anisotropic diffusion model.Research results obtained in this project will be expected to contribute the creation of smart photoelectronic and electric devices with organic materials. Less

有机物的势能形成胶片中的粉状和光子含量。在PTFE层上发光二极管利用摩擦转移的聚（9,9-二八核）薄膜构建，摩擦转移技术。揭示了聚合物骨架在摩擦方向上高度排列。从pleds中观察到高达300 cd/m2。放射的紫外线。用有机材料的智能光电设备和电动设备的贡献

项目成果

期刊论文数量（92）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

摩擦転写法と後熱処理によるポリフルオレン単結晶様薄膜の作製

摩擦转移法及后热处理制备聚芴单晶薄膜

DOI：
发表时间：
2004
期刊：
電子情報通信学会技術研究報告,OME 第60巻
影响因子：
0
作者：
Naofumi Aoki;Naofumi Aoki;Masahiro Misaki;Masahiro Misaki;Masahiro Misaki;Hiroki Kihara;Naofumi Aoki;Kogiso M;Ikeda S;Yoshimoto N;Yoshimoto N;Kobayashi S;三崎雅裕
通讯作者：
三崎雅裕

Molecular Rearrangement and Change of Optical Properties of p-Sexiphenyl in Vacuum-deposited Film with Rubbing Technique

摩擦技术真空沉积膜中对六苯基的分子重排及其光学性质的变化