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Fabrication of Multilayr Heterostructure Devices of Conducting Polymers using Molecular Self-Assembly Prtocess and Their Functionality

利用分子自组装工艺制备导电聚合物多层异质结构器件及其功能

基本信息

批准号：
08650389
负责人：
ONODA Mitsuyoshi
金额：
$ 1.6万
依托单位：
Himeji Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

项目摘要

Conducting polymers are generally becoming more important as semiconducting materials in new applications. Recent progress has been made in the fabrication of electronic devices based on metal-semiconductor Schottky junctions, where conducting polymers are used as active semiconducting materials. We had investigated on the fabrication of molecular self-assembled multilayr heterostructure devices of conducting polymers and their fanctionality. A novel thin film processing technique has been developed for the fabrication of ultrathin films of conducting polymers with molecular-level control over thickness and multilayr architecture. This new self-assembly process opens up vast possibilities in applications which require large area, ultrathin films of conducting polymers and more importantly in applications that can take advantage of the unique interactions achievable in the complex, supermolecular architectures of miltilayr films. Optical properties and phtoconduction of multilayred heterostructure devices using various conducting polymers have been studied Remarkable quenching of photoluminescence and enhanced photoconduction are found in the multilayred heterostructure. These phenomena are explained in terms of efficient photoinduced charge separation at the heterointerfaces between the negatively and the positively charged conducting polymers which are thought to act as a photo-donor and a photo-acceptor, respectively. Polypyrrole (PPy) films on the surface of sulfonated polyethylene (SPE) were grew using molecular self-assembly process and the properties of PPy/SPE composite films have been investigated.

导电聚合物作为新应用中的半导体材料通常变得越来越重要。近年来，以导电聚合物为活性半导体材料的金属-半导体肖特基结电子器件的研制取得了很大进展。我们研究了导电聚合物分子自组装多层异质结器件的制备及其功能性。发展了一种新型的薄膜加工技术，用于制备具有分子水平控制厚度和多层结构的导电聚合物薄膜。这种新的自组装过程开辟了巨大的可能性，在应用程序中，需要大面积，导电聚合物的可渗透膜，更重要的是，在应用程序中，可以利用独特的相互作用，实现复杂的，超分子结构的miltilayr膜。本文研究了用不同导电聚合物制成的多层异质结构器件的光学性质和光电导特性，发现多层异质结构的光致发光有明显的猝灭，光电导有明显的增强。这些现象被解释在有效的光诱导电荷分离在异质界面之间的负电荷和正电荷的导电聚合物，被认为是作为一个光供体和光受体，分别。采用分子自组装技术在磺化聚乙烯（SPE）表面制备了聚吡咯（PPy）膜，并对PPy/SPE复合膜的性能进行了研究。