Electronic Excitations in Polyacetylene
Electronic Excitations in Polyacetylene
复制标题
聚乙炔中的电子激发
DOI：
10.1080/00268948108075228
复制
发表时间：
1981
影响因子：
0.7
通讯作者：
A. MacDiarmid
中科院分区：
文献类型：
--
作者：
S. Etemad;A. Heeger;L. Lauchlan;T. Chung;A. MacDiarmid
本文综述了聚乙炔中光散射和光吸收的最新实验结果，并用孤子模型进行了解释。数据表明，电子-电子(空穴-空穴)对的化学掺杂注入或电子-空穴对的光注入都会扭曲晶格，导致孤子-反孤子对的形成。结果表明，与传统半导体不同，聚乙炔晶格在存在电子和/或空穴激发的情况下具有固有的不稳定性。
Abstract Recent experimental results on light scattering and absorption in polyacetylene are reviewed, and interpreted in terms of the soliton model. The data indicate that injection of an electron-electron (hole-hole) pair by chemical doping or photoinjection of an electron-hole pair invariably distort the lattice leading to formation of a soliton-antisoliton pair. It is concluded that unlike traditional semiconductors, the polyacetylene lattice is inherently unstable in the presence of electron and/or hole excitations.