| 초록 |
The importance of barrier film coating for securing the devices from oxygen or moisture penetration becomes more salient. However, conventional gas barrier films have still confronted an intrinsic drawback of large brittleness and inability to stretching for flexible device applications. To overcome this issue, we present a method to prepare multilayered films consisting of complementarily charged polyurethane and graphene oxide platelets using spin-assisted layer-by-layer self-assembly to obtain well-stacked film structures. As a result, multilayered thin films deposited on poly(ethylene terephthalate) substrate can exhibit reduced oxygen penetration even under applying large bending or stretching deformations, Therefore, the proposed means in this study is anticipated to be extensively utilized for surface coating and protection for flexible and stretchable devices under various operating conditions. |
