Tseng Chiao-Wei, Tao Yu-Tai
Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, Republic of China, 115.
J Am Chem Soc. 2009 Sep 2;131(34):12441-50. doi: 10.1021/ja904882m.
Pentacene films were deposited on a silica surface decorated with gold nanoparticles (Au-NPs). The crystallinity and packing orientation of the film are critically dependent on the surface properties of the nanoparticles, which can be tuned by a self-assembled monolayer (SAM) of organic thiolate on the nanoparticles. High-performance field-effect transistors based on the Au-NPs-embedded pentacene films can be prepared if the nanoparticles are made "hydrophobic" as well as "oleophobic" by appropriate SAMs. Electrical bistability was observed in these devices, with a memory window that depends on the size and surface modification of the Au-NPs. The structural characterization and electronic characteristics of the devices will be detailed.
并五苯薄膜沉积在装饰有金纳米颗粒（Au-NPs）的二氧化硅表面上。薄膜的结晶度和堆积取向严重依赖于纳米颗粒的表面性质，而纳米颗粒的表面性质可通过纳米颗粒上有机硫醇盐的自组装单分子层（SAM）进行调节。如果通过合适的自组装单分子层使纳米颗粒具有“疏水性”和“疏油性”，则可以制备基于嵌入金纳米颗粒的并五苯薄膜的高性能场效应晶体管。在这些器件中观察到了电双稳性，其记忆窗口取决于金纳米颗粒的尺寸和表面修饰。将详细介绍这些器件的结构表征和电子特性。
