拉伸应力作用下共轭高分子的能带结构研究  

Band structure of conjugated polymers under tensile stress

作　　者：童国平[1] 林征[1] 陈琼[1] 沈晓萍[1] 李盛[1] 

机构地区：[1]浙江师范大学数理与信息工程学院,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2014年第1期50-53,共4页Journal of Zhejiang Normal University:Natural Sciences

基　　金：国家自然科学基金资助项目(21074118);浙江省钱江人才计划资助项目(2010R10019)

摘　　要：基于改进的SSH模型和弹性力学理论,研究了聚乙炔在单轴拉伸应力形变下的能带结构随应力大小的变化规律.计算结果表明:能带宽度和能隙随拉伸应力的增大而变窄,而能带宽度变化幅度要快于能隙的变化幅度.Based on the revised SSH model and theory of elasticity, the energy band structure of conjugated polymers under tensile stress was studied. The results showed that both the energy bandwidth and gap became narrower as the stress increased, and the change of bandwidth was faster than that of the gap.

关 键 词：反式聚乙炔 拉伸应力 弹性理论 能带结构 

分 类 号：O471.5[理学—半导体物理]