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Sodium-Ion Intercalated Transparent Conductors with Printed Reduced Graphene Oxide Networks

机译:具有印刷的石墨烯氧化物网络的钠离子插入透明导体

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摘要

In this work, we report for the first time that Na-ion intercalation of reduced graphene oxide (RGO) can significantly improve its printed network's performance as a transparent conductor. Unlike pristine graphene that inhibits Na-ion intercalation, the larger layer-layer distance of RGO allows Na-ion intercalation, leading to simultaneously much higher DC conductivity and higher optical transmittance. The typical increase of transmittance from 36% to 79% and decrease of sheet resistance from 83k to 311 Ohms/sq in the printed network was observed after Na-ion intercalation. Compared with Li-intercalated graphene, Na-ion intercalated RGO shows much better environmental stability, which is likely due to the self-terminating oxidation of Na ions on the RGO edges. This study demonstrated the great potential of metal-ion intercalation to improve the performance of printed RGO network for transparent conductor applications.
机译:在这项工作中,我们首次报告了石墨烯氧化物(RGO)的Na离子插入可以显着改善印刷网络的性能作为透明导体。 与抑制Na离子插入的原始石墨烯不同,RGO的较大层距离允许Na离子插入,导致同时更高的直流电导率和更高的光学透射率。 在Na离子插入后,观察到从36%到79%的透射率从36%增加到79%的透射率的增加,并且在印刷网络中的83k至311欧姆/ Sq的降低。 与锂嵌入的石墨烯相比,Na离子插入的RGO显示出更好的环境稳定性,这可能是由于RGO边缘上的Na离子的自终止氧化。 本研究表明了金属离子插相的巨大潜力,以改善印刷RGO网络进行透明导体应用的性能。

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