Novel properties of nanoscale organic-inorganic systems and photonic crystals - conducting polymers in nanoscale periodic structures, microcavities and photonic crystals

被引:10
作者
Yoshino, K [1 ]
Kawagishi, Y
Tatsuhara, S
Kajii, H
Lee, S
Ozaki, M
Vardeny, ZV
Zakhidov, AA
机构
[1] Osaka Univ, Fac Engn, Dept Elect Engn, Suita, Osaka 5651871, Japan
[2] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA
[3] Uzbek Acad Sci, Dept Thermophys, Tashkent 700135, Uzbekistan
[4] Inst Fundamental Chem, Sakyo Ku, Kyoto 606, Japan
基金
日本学术振兴会;
关键词
nanosystem photonic crystal; organic-inorganic; opal laser EL;
D O I
10.1006/spmi.1998.0654
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Conducting polymer/C-60 and C-60 doped conducting polymer/C-60 heterojunctions have been fabricated and found to exhibit remarkably enhanced photoresponse due to the highly effective photoinduced charge transfer at the interface. In conducting polymer/C60 alkali metal nanoscale composite systems, multiphase superconductivity has been clarified and explained by taking the coupling of nanoscale grains by Josephson junctions into consideration. As examples of intramolecular organic-inorganic combined systems, unique electrical and optical characteristics have been revealed in oligosilanylene oligophenylene polymers. Electroluminescence has been demonstrated in organic-inorganic junction devices such as conducting polymer/porous Si and conducting polymer/diamond junctions. Conducting, polymer-based nanoscale multilayer systems have been studied utilizing molecular self-assembly method and novel photosensitive characteristics have been revealed. Novel optical and electrical properties of conducting polymers infiltrated in a photonic crystal, synthetic opal made of SiO2 spheres of several hundred nm in diameter, and also a conducting polymer replica have been revealed, A clear diffraction pattern was observed in a photonic crystal infiltrated with conducting polymers, and transmission spectra are dependent on various ambient conditions. Their photoluminescence (PL) spectra, spectral narrowing of PL and lasing characteristics at relatively low optical excitation have also been clarified. Novel conducting characteristics of conducting polymers in a photonic crystal that was prepared by pyrolysis of a polymer replica of opal have also been observed. (C) 1999 Academic Press.
引用
收藏
页码:325 / 341
页数:17
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