Study on New LB films with Molecular-Janction System

本研究的目的是建立一种新的LB方法，通过这种方法可以在脂质单层中实现功能分子的图案化区域，通过组合图案化的单层来实现三维集成分子系统，并最终将该系统应用于电子器件。“部分浇铸”、“液滴表面浇铸”和“吸附LB”方法。在部分浇铸方法中，外力局部施加到水亚相上的单层上以打开小孔，并且功能分子被注入到孔中。外力是物理力，例如电场、弯月面区域中的力或通过框架的力等。通过使用弯月面区域可以形成固化聚合物LB膜的细丝，这将在下面提到。部分浇铸法中最现实的一种是液滴表面浇铸法，其中小水滴（几十μ m至1mm 关于我们 直径）被推出锥形玻璃移液管，并将功能性分子浇铸在液滴上。吸附LB膜法是利用染料分子的化学结构和极性所产生的自组织性质以及控制电场在LB膜中形成分子结或聚集体系。新的LB方法已被发现的几个应用。其中最突出的是通过液滴表面浇铸在集成SAW器件上沉积多个脂质分子膜以实现高灵敏度（几ppm范围）SAW多通道气体或气味传感器.在弯月形区域中的导电聚合物的细丝形成可以通过将脂质材料和吡咯铺展在水表面之后在ITO涂覆的基底上的电聚合来完成。此外，我们购买的扫描探针显微镜使我们能够观察沉积的分子膜的分子图像、表面形貌和表面电位图像。少

The purpose of the present study is to establish the "new LB method" by which a patterned region of functional molecules can be implemented in a lipid monolayr, to realize three-dimensional integrated molecular system by combining the pattterned monolayrs, and to finally apply the system to a electronic device.The three "new LB methods" have been developed ; "partial-casting", "droplet-surface casting" and "adsorption LB" methods. In the partially-casting method, a outer force is applied locally onto a monolayr on water subphase in order to open a small hole, and functional molecules are injected into the hole. The outer force is a physical one such as an electric field, forces in a meniscus region or by a frame, etc. The filament of a conduting polymer LB film can be formed by using the meniscus region, which will be mentioned below. The most realistic one among partial-casting methods is the droplet-surface casting method, in which a small water droplet (several tens of mu m to 1 mm … More in diameter) is pushed out of a tapered glass pipette and functional molecules are cast on the droplet. If a substrate surface is attached onto the droplet, the spread molecules are transferred and a patterned mlecular film can be deposited on it. In the adsorption LB method, a self-organizing property due to the chemical structures and the polarity of dye molecules and an controling electric field are used for preparing molucular junctions or aggregation system in LB films..Several applications have been found by the new LB method. One of the most prominent ones is the deposition of plural lipid molecular films by the droplet-surface casting on integrated SAW devices for realization of an highly sensitive (several ppm range) SAW multi-channel gas or odor sensors.The filament formation of conducting polymer in a meniscus region can be done by electro polymerization of pyrrole on to an ITO coated substrate after spreading a lipid material and pyrrole on water surface. The technique might be used for wiring to molecular devices.Furthermore, the purchased scaning-probe microscope enabled us to observe the molecular images, surface morphology and surface-potential images of the deposited molecular films. Less