信息技术的飞速发展,要求不断开发具有更高信息存储密度及更快响应速度的材料和器件。有机功能材料具有低成本、结构简单、可设计性强以及良好的响应性能等优点被认为是适用于纳米尺度和单分子水平超高密度信息存储的优异材料。采用真空蒸镀方法制备了有机功能分子 N,N’-二[4-(1,1-二氰乙烯基)苯基]-N,N’-二(4-甲氧基苯基)联苯二胺的薄膜,研究了该薄膜电开关特性。在此基础上通过扫描隧道显微镜在薄膜上成功写入了纳米尺度的信息点。研究结果期待为发展未来基于有机功能分子的纳米信息存储材料和器件提供帮助。
The rapid development of information technology demands that the materials and devices for data storage must have ultrahigh storage density and fast response speed.Organic functional materials have been considered as one of promising candidates for nanoscale and single molecular level ultrahigh density data storage because of their low cost,simplicity,versatility in molecular design,and good stimuli-responsive properties.In this paper,we described the preparation of a thin film of the organic functional molecule N,N'-bis[4-(1 ,1-dicya-novinyl)phenyl]-N,N'-bis(4-methoxyphenyl)benzidine through physical vacuum vapor deposition method,and investigated the electrical switching character.Furthermore,nanoscale data storage was successfully realized through scanning tunneling microscope.Our results would provide help for the future nanoscale ultrahigh den-sity data storage materials and devices.
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