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聚酰亚胺Langmuir-Blodgett(LB)膜因具有超薄、有序、可控、任意组装等特点而在微电子等现代科学技术中有着极大的应用前景.它们可用于超薄绝缘膜和液晶显示中的定向层.在这些实际应用中,表征聚酰亚胺LB膜的分子结构以研究其分子功能显得尤其重要.但是,使用常规的分析方法难以在分子水平上进行LB膜的直接观察和研究.近年来,扫描隧道显微镜(STM)因具有原子级的分辨为有机超薄膜微观分子结构的表征提供了一种新型强有力的检测手段.1991年日本学者Fujiwara等人首次报道了对单层聚酰亚胺膜的STM观测研
The polyimide Langmuir-Blodgett (LB) films have great potential applications in modern science and technology such as microelectronics because of their ultra-thin, ordered, controlled and arbitrary assembly. They can be used in ultra-thin insulating films and In these practical applications, it is of particular importance to characterize the molecular structure of the polyimide LB film to study its molecular function However, it is difficult to perform direct observation of the LB film at the molecular level using conventional analytical methods And research.In recent years, scanning tunneling microscopy (STM) has provided a new and powerful method for detecting the microscopic molecular structure of organic ultra-thin films due to its atomic resolution. In 1991, Japanese scholar Fujiwara et al. Study on STM Observation of Polyimide Film