GRAVIA - Contiguous graphene ultra-barrier films for flexible electronic applications

该项目将研究在标准测试格式下生产非常高质量的阻挡层的可行性，用于OLED和塑料逻辑显示器的高质量柔性封装。这些薄膜使用高质量的CVD石墨烯和原子层沉积(ALD)非晶氧化铝多层自修复多层膜，具有超低的水蒸气传输率(WVTR)，每天低于1×10-6g/m2。这项工作将探索必要的工业工艺参数，以确保能够提供最低阻隔性能的最低价格点，所生成的阻隔膜将在WVTR和机械弯曲测试中与现有的阻隔涂层进行基准比较。工业创新将使用先进的表征和质量控制方法来生产完全灵活、自愈(连续)的光学透明薄膜，大小为25 cm2(超过当前技术水平4 cm2)，以确保迭代开发。从可行性研究中获得的理解将被用于模拟和预测未来更大的电影系统，还将在可能的情况下被寻求障碍的最终用户利用，并通过联合KTN活动来针对这些社区。

The project will investigate the feasbility of producing very high quality barrier films in standard test formats for high quality flexible encapsulation of OLED and plastic logic display applications.These exhibit ultra low water vapour transfer rates (WVTR) of less than 1 X 10-6 g/m2 per day using self healing multilayers of high quality CVD graphene and Atomic Layer Deposited (ALD) amorphous alumina multilayers. The work will explore the neccessary industrial process parameters to ensurelowest price point at which the minimum barrier properties can be delivered The resultant barrier films will be benchmarked against existing barrier coatings in WVTR and mechanical flex tests. The industrial innovation will be producing a fully flexible, self-healed (contiguous), optically transparent film of 25cm2 (beyond the current state of art 4cm2) using advanced characterisation and quality control metrologies to ensure iterative development. The resultant understanding gained from the feasibility studies will be used to model and anticipate future larger film systems and will be also exploitated where possible by barrier seeking end users and through joint KTN activities to target these communities.