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Directional organic electroluminescent device based on molecular synchronization phenomena

基于分子同步现象的定向有机电致发光器件

基本信息

批准号：
11167220
负责人：
WATANABE Toshiyuki
金额：
$ 31.68万
依托单位：
Tokyo University of Agriculture and Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2002
项目状态：
已结题

项目摘要

Novel bio-devices, electronics devices, all-optical devices and mechanical actuators based on molecular synchronization are proposed and their unique properties have been analyzed. The directional macroscopic responses are obtained from weak microscopic stimulus according to cascade, domino and resonance effects. The important research results are summarized as follows1)Biocompatible polymer alloy membrane for implantable artificial oancreas are developed. This polymer pump was used as an artificial pancreas that spontaneously release insulin in response to the blood glucose level.2)Bi-ionic actuator was developed using polypyrrole (PPy) films. PPy films prepared by electrochemical deposition of pyrrole and with various electrolyte like p-phenolsulfonic acid (PPS) and dodecylbenzene sulfonic acid (DBS) are found to show that electrochemical deformation of PPy/PPS film elongates upon oxidation, contrary to that of PPy/DBS film expands by oxidation. In addition, photoresponsive polymer g … More els having jungle-gym-like structure was synthesized and their photochemical and mechanical properties were investigated. Exposure of the amic acid gel containing azo-benzene moieties in DMF to UV light, which cause trans-cis photo isomerization. induce deflecting of amic acid gel toward to the irradiation direction of the actinic light. When the bent film was irradiated by visible light, which cause cis-trans back isomerization of the azo-benzene moiety, unbending of the amic acid gel immediately took place.3)The polymer liquid crystal with azobenzene moiety in the side chain was prepared. It was confirmed from polarized UV absorption that the azobenzene moiety was homeotropically aligined in the film. A linear polarized beam was split into two beams and interfered in the film with crossing angle 180℃. Diffraction efficiency of this film was found to be near 90%.4)Phnylethynyl anthracene unit was connected with diarylethene unit through adamantyl unit to control photo-induced modulations of fluorescence emission intensity and wavelength. Single molecule fluorescence imaging was demonstrated with a laser-scanning confocal microscope with a single photon counting detector and an excitaion Ar-ion laser. On-Off digital switching of single molecule fluorescence signals was observed with UV laser irradiation and its average time constant depend linearly with inverse of irradiation light power.5)Highly reversible reflectanoe changes corresponding to photochromism or photoinduced electron transfer upon repeated fs laser excitation was demonstrated to fabricate ultra-fast all optical spatial light modulation based on guided mode. Less

提出了基于分子同步的新型生物器件、电子器件、全光器件和机械致动器，并分析了它们的独特性能。根据级联效应、多米诺效应和共振效应，从微弱的微观刺激中获得定向的宏观响应。主要研究成果如下：1）研制了生物相容性高分子合金膜。这种聚合物泵被用作人工胰腺，其响应于血糖水平自发地释放胰岛素。2）使用聚吡咯（PPy）膜开发了双离子致动器。通过电化学沉积吡咯制备的PPy薄膜，在不同电解质如对苯酚磺酸（PPS）和十二烷基苯磺酸（DBS）中发现，PPy/PPS薄膜的电化学变形在氧化时伸长，而PPy/DBS薄膜的电化学变形在氧化时膨胀。此外，光响应聚合物g ...更多信息合成了具有类丛林体操结构的ELS，并研究了其光化学性能和力学性能。将含有偶氮苯部分的酰胺酸凝胶在DMF中暴露于UV光，这引起反式-顺式光异构化。诱导酰胺酸凝胶向光化光的照射方向偏转。在可见光照射下，偶氮苯部分发生顺反异构化，酰胺酸凝胶立即发生解弯。3）制备了侧链含偶氮苯的聚合物液晶。从偏振紫外吸收证实，偶氮苯部分在膜中是垂直排列的。一束线偏振光束被分成两束光，并以180℃的交叉角在薄膜中干涉。该薄膜的衍射效率接近90%。4）通过金刚烷基单元将苯基乙炔基蒽单元与二芳基乙烯单元连接起来，控制荧光发射强度和波长的光致调制。单分子荧光成像是用激光扫描共聚焦显微镜，单光子计数检测器和激发氩离子激光器演示的。在紫外激光照射下，观察到单分子荧光信号的数字开关，其平均时间常数与照射光功率的倒数呈线性关系。5）利用飞秒激光重复激发产生的光致变色或光诱导电子转移引起的高度可逆的反射变化，实现了基于导模的超快全光空间光调制。少