Ultra-smooth glassy graphene thin films for flexible transparent circuits.
Ultra-smooth glassy graphene thin films for flexible transparent circuits.
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用于柔性透明电路的超光滑玻璃态石墨烯薄膜
DOI：
10.1126/sciadv.1601574
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发表时间：
2016-11
期刊：
影响因子：
13.6
通讯作者：
Zou G
中科院分区：
文献类型：
--
作者：
Dai X;Wu J;Qian Z;Wang H;Jian J;Cao Y;Rummeli MH;Yi Q;Liu H;Zou G
研究了一种玻璃态石墨烯薄膜，并将其应用于激光直写电路。大面积石墨烯薄膜在柔性和透明设备中受到重视。我们报告了一种玻璃状石墨烯，它处于玻璃碳和石墨烯之间的中间状态，具有高结晶度，但晶格平面卷曲。采用聚合物辅助的方法生长了英寸级的超光滑（粗糙度<0.7 nm）玻璃状石墨烯薄膜。由于玻璃状石墨烯薄膜从石墨烯和玻璃碳继承的优点，玻璃状石墨烯薄膜表现出与石墨烯相当的导电性、透明度和柔性，以及玻璃碳样的机械和化学稳定性。此外，玻璃状石墨烯基电路使用激光直写方法制造。电路被转移到柔性基板，并表现出可靠的性能。玻璃态石墨烯薄膜将促进柔性透明导电材料在集成电路中的应用。
A type of glassy graphene thin film was studied and applied for laser direct writing circuits. Large-area graphene thin films are prized in flexible and transparent devices. We report on a type of glassy graphene that is in an intermediate state between glassy carbon and graphene and that has high crystallinity but curly lattice planes. A polymer-assisted approach is introduced to grow an ultra-smooth (roughness, <0.7 nm) glassy graphene thin film at the inch scale. Owing to the advantages inherited by the glassy graphene thin film from graphene and glassy carbon, the glassy graphene thin film exhibits conductivity, transparency, and flexibility comparable to those of graphene, as well as glassy carbon–like mechanical and chemical stability. Moreover, glassy graphene–based circuits are fabricated using a laser direct writing approach. The circuits are transferred to flexible substrates and are shown to perform reliably. The glassy graphene thin film should stimulate the application of flexible transparent conductive materials in integrated circuits.