| 초록 |
Graphene, a single layer exfoliated from a graphite, exhibits excellent electrical properties and thermal stability, facilitating utilize for variable practical application. We employed a Langmuir-Shaefer(LS) technique to produce a close packed graphene oxide(GO) monolayer on any arbitrary surface. We spread the amine-terminated surfactant such as octadecyl amine(ODA) on the surface of GO suspensions, which induced formation of the ODA-GO complex monolayer at the liquid-gas interface. Upon compression, the monolayer wrinkled from the surface pressure of 40mN/m. We also investigated the effect of the GO concentration, alkyl chain length of surfactants and spread amount of ODA surfactants on morphology changes of GO Langmuir films. Subsequently, we obtained the reduced graphene oxide(rGO) layer on substrates by chemical and thermal treatments. We compared the sheet resistances and Raman Spectra before and after reductive treatment. |
