论文部分内容阅读
理论和实验表明,许多有机分子的超极化率β比无机材料的大2～3个数量级[1].这些有机分子一般都带有强的电子给体和受体,并通过离域的共轭π键连接起来.除分子结构外,分子的排列取向、聚集种类和程度等是决定Ｌａｎｇｍｕｉｒ＿Ｂｌｏｄｇｅｔｔ(ＬＢ)膜宏观物理特性的主要因素.
Theoretical and experimental results show that the hyperpolarizability β of many organic molecules is two to three orders of magnitude larger than that of inorganic materials.1 These organic molecules generally have strong electron donors and acceptors, Yoke π bond together.In addition to the molecular structure, the orientation of the molecules, the type and degree of aggregation are the main factors that determine the macroscopic physical properties of the Langmuir_Blodgett (LB) film.