Simple Formation of C-60 and C-60-Ferrocene Conjugated Monolayers Anchored onto Silicon Oxide with Five Carboxylic Acids and Their Transistor Applications

[摘要]：C-60 and C-60-ferrocene conjugated molecule bearing five carboxylic acids successfully anchor onto a silicon oxide surface as a monolayer through a simple method of simply dipping an amino-terminated surface into the solution of the C-60 derivatives. The monolayer structure was characterized by UV-vis spectroscopy, X-ray reflectivity, X-ray photoelectron spectroscopy, and IR spectroscopy to reveal that the molecules are standing presenting its C-60 spherical face at the surface. The electronic effect of the C-60 monolayer and the ferrocene-functionalized C-60 monolayer in OFET devices was investigated. When an n-type OFET was fabricated on the ferrocene functionalized monolayer, we sec an enhancement in the mobility. When a p-type OFET was made the ferrocene-functionalized C-60 monolayer showed a lowering of the carrier mobility.

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