| 초록 |
Graphene is a promising material for future electronic devices such as transparent electrode due to its outstanding physical properties with high transparency and flexibility. Polycrystalline graphene (PCG) is generally used for the transparent electrode, which has structural defects. However, single crystalline graphene (SCG) has never been used as transparent electrode because it has been a great challenge to synthesize it with large size and some simulation studies show that electrical and mechanical properties would be the same with PCG with large grain size. Here we demonstrate large area transparent flexible electrode using SCG and compared its properties with PCG. We have confirmed that electrical properties are similar, but SCG has much improved mechanical and barrier properties and chemical stability confirmed by bending, stretching, durability and permeation test. This result shows better macroscopic properties of SCG and its advantages for applying electronic devices. |
