Organic quantum-well characteristics of quasi-one-dimensional copolymers  

作　　者：刘德胜 魏建华 解士杰 韩圣浩 梅良模 

机构地区：[1]School of Physics&Microelectronics,Shandong University,Jinan 250100,China [2]Department of Physics,Jining Normal University,Jining 272025,China [3]National Key Laboratory of Crystal Materials,Jinan 250100,China

出　　处：《Science China Mathematics》2002年第6期795-801,共7页中国科学：数学（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China ( Grant Nos. 10074040 and 59871024).

摘　　要：Copolymers which are synthesized by oligomers or homopolymers have quasi-one-dimen sional structures. A tight-binding model was suggested to study the organic quantum-well properties of triblock copolymers xPA/nPPP/yPA and xPPP/nPA/yPPP consisting of polyacetylene (PA) and poly(p-phenylene) (PPP). It was found that the electronic density in the lowest conductive state ( LU MO) could be tuned by the ratios of homopolymers and interfacial coupling. The spontaneous quantum tunneling effects will occur in triblock copolymer xPA/nPPP/yPA with the increasing interfacial cou pling.Copolymers which are synthesized by oligomers or homopolymers have quasi-one-dimensional structures. A tight-binding model was suggested to study the organic quantum-well properties of triblock copolymers xPA/nPPP/yPA and xPPP/nPA/yPPP consisting of polyacetylene (PA) and poly( p-phenylene) (PPP). It was found that the electronic density in the lowest conductive state (LUMO) could be tuned by the ratios of homopolymers and interfacial coupling. The spontaneous quantum tunneling effects will occur in triblock copolymer xPA/nPPP/yPA with the increasing interfacial coupling.

关 键 词：COPOLYMERS organic quantum-well interfacial coupling 

分 类 号：O641.121[理学—物理化学]