Electronic Excitations in Polyacetylene

作者：Shahrokh Etemad, Allan J. Heeger, Laurie J. Lauchlan, Taek-Gyun Chung, Alan Graham MacDiarmid · 发表于：Molecular crystals and liquid crystals · 年份：1981 · DOI：10.1080/00268948108075228 · 被引用次数：64 · 研究领域：Conducting polymers and applications、Analytical Chemistry and Sensors、Mechanical and Optical Resonators

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.