| 초록 |
Graphene is attracting tremendous attention on research field of heat dissipation thin film. However, because of its 2D-plate-like structure, it has a low through-plane thermal conductivity as opposed to a high in-plane thermal conductivity. To solve its low through-plane thermal conductivity problem, we devised nano-scaled multilayer films Alumina particles, relatively high thermal conductivity material, can compensate low through-plane thermal conductivity of rGO. GO/Alumina multilayer films are fabricated by alternately stacking GO flakes and alumina particles. After thermal reduction process, rGO/Alumina film has 800W/m.K of in-plane thermal conductivity and 8W/m.K of through–plane thermal conductivity. This rGO/Alumina film shows extremely efficient heat dissipation effect. Due to its simple fabrication process and excellent thermal properties, it is expected that rGO/Alumina film can be applied in not only LED and integrated electronic device but also other heat management. |
