The optical and electrical properties of graphene oxide with water-soluble conjugated polymer composites by radiation.
In order to overcome the difficulty of dispersion and low conductivity in composite containing graphene, graphene oxide (GO) has been used instead of neat graphene. And the GO treated by radiation, could give improved conductivity of the GO-containing polymer composite. In this study, fluorene based water-soluble conjugated polymer (WPF-6-oxy-F) was introduced in GO solution to investigate the change of optical and electrical properties through radiation process. UV-Vis absorption of irradiated WPF-6-oxy-F-GO composite was red shifted and I(D)/I(G) ratio of Raman spectra decreased. XPS analysis showed that C-N bonds was formed after the irradiation and confirmed the increased bonds between the GO and the water-soluble conjugated polymer matrix. From the AFM and XPS analysis, it was found that the water-soluble conjugated polymer matrix was stacked between the modified GO in the morphology of irradiated WPF-6-oxy-F-GO composite was increased after gamma ray irradiation up to 10(-2) S/cm.
Korea Atomic Energy Research Institute, Advanced Radiation Technology institute, 29 Geumgu-gi Jeongup-si Jeollabuk-do, 580-185, Republic of Korea.
Seung Tae
ST
Jungo
Seung-Hwan
SH
Oh
Hyun Bin
HB
Kim
Joon-Pyo
JP
Jeun
Bum-Jae
BJ
Lee
Phil-Hyun
PH
Kang
D004553:Electric Conductivity; D006108:Graphite / Q000737:chemistry* / Q000528:radiation effects; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure*; D010087:Oxides / Q000737:chemistry* / Q000528:radiation effects; D010316:Particle Size; D011108:Polymers / Q000737:chemistry* / Q000528:radiation effects; D011829:Radiation Dosage; D012031:Refractometry; D012995:Solubility; D014867:Water / Q000737:chemistry*
D010087:Oxides; D011108:Polymers; D014867:Water; D006108:Graphite