有机化合物的半导体性质与其化学结构的关系

• 作 者: 张乾二
• 机 构: 厦门大学化学系物质结构教研组,
• 出 处: 厦门大学学报(自然科学版)
• 发表日期: 1961年03期
• 关键词: 有机化合物 半导体性质 有机半导体 有机晶体 π电子 化学结构 禁带 共轭体系 激发能 共轭分子

在这篇交章中作者根据关于酞菁及其金屠络合物,蛋白质和稠核芳烃等有机半导体底研究结果,试图依据 Eley 的π电子假说,探求有机化合物的半导体性质与其化学结构的关系.初步认为有机半导体的禁带宽度主要系决定于个别共轭分子或共轭体系中π电子的激发能,与晶体的长程序结构的关系很小,而其载流子迁移率则决定干有机晶体中分子的堆积形式和分子间作用力的性质.

In this chapter, the author attempts to find out the relationship between the semiconducting properties of organic compounds and their chemical structures according to Eley’s π-electron hypothesis, based on the results of studies on organic semiconductors such as phthalocyanines and their complexes, proteins and condensed aromatic nuclei. It is initially believed that the forbidden band width of organic semiconductors mainly depends on the excitation energy of the π electrons in the individual conjugated or conjugated systems and has little to do with the long structure of the crystal and the carrier mobility determines the dry organic The accumulation of molecules in crystals and the nature of intermolecular forces.