Simultaneously Armored and Active Graphene for Transparent and Flexible Supercapacitors,Advanced Functional Materials

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Simultaneously Armored and Active Graphene for Transparent and Flexible Supercapacitors
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2018-05-28 , DOI: 10.1002/adfm.201801998
Yuxiang Zhong _{1,

2} , Xin Zhang _{1,

2} , Yi He _{1,

2} , Huifen Peng _{1,

2} , Gongkai Wang _{1,

2} , Guoqing Xin ₃

Affiliation

Transparent and flexible supercapacitors (TFSCs) as indispensable components for future transparent and flexible electronics have attracted significant interests. The Ag nanowires/poly(ethylene terephthalate) (PET) transparent conductive electrodes (TCEs) exhibit strong competitiveness applied in the TFSCs due to the exceptional conductivity and transparency. However, the environmental tolerance of Ag nanowires such as oxidation and sulfurization limits the reliability. Herein, electric‐double‐layer TFSCs based on Ag nanowires/PET TCEs as current collectors are reported. More importantly, a seamless, uniform, and flexible graphene layer behaves as armored and active components simultaneously for the TFSCs, by a facile electrodeposition process. On the one hand, the flexible graphene layer can isolate the Ag nanowires away from the oxidation well, particularly in the condition of electrolyte. On the other hand, the laminated graphene layer with wrinkles can store electrons, and the copercolating network of graphene layer and Ag nanowires can transport the electrons efficiently, cyclically accomplishing the operation of storage and transport, by which the synergistic effect endows the TFSCs with decent optical and electrochemical performances. The interfacial capacitance is evaluated to discuss the relationship between the structure of graphene layer and the measured capacitance. This facile process provides a rational architecture and insights into TFSCs.

中文翻译：

同时铠装和有源石墨烯，用于透明和柔性超级电容器

透明和柔性超级电容器（TFSC）作为未来透明和柔性电子产品必不可少的组件，引起了人们的极大兴趣。Ag纳米线/聚对苯二甲酸乙二醇酯（PET）透明导电电极（TCE）具有出色的电导率和透明性，因此在TFSC中具有很强的竞争力。然而，Ag纳米线的环境耐受性例如氧化和硫化限制了可靠性。在此，报道了基于Ag纳米线/ PET TCE作为集电器的双电层TFSC。更重要的是，无缝的，均匀的和柔性的石墨烯层通过简便的电沉积过程同时充当TFSC的铠装和活性组分。一方面，柔性石墨烯层可以将Ag纳米线与氧化井隔离开，特别是在电解质条件下。另一方面，具有褶皱的层压石墨烯层可以存储电子，并且石墨烯层和Ag纳米线的共渗网络可以有效地传输电子，周期性地完成存储和传输的操作，由此协同效应使TFSCs具有良好的吸收性。光学和电化学性能。评估界面电容以讨论石墨烯层的结构与测得的电容之间的关系。这一简便的过程为TFSC提供了合理的架构和见解。循环完成存储和运输的操作，通过这种协同作用，TFSC具有良好的光学和电化学性能。评估界面电容以讨论石墨烯层的结构与测得的电容之间的关系。这一简便的过程为TFSC提供了合理的架构和见解。周期性地完成存储和运输操作，通过协同效应赋予TFSC良好的光学和电化学性能。评估界面电容以讨论石墨烯层的结构与测得的电容之间的关系。这一简便的过程为TFSC提供了合理的架构和见解。

更新日期：2018-05-28

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