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Dream Screens from the Graphene Revolution - Innovation Toronto

Dream Screens from the Graphene Revolution - Innovation Toronto
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Multiscale Structural Design of 2D Nanomaterials-based Flexible Electr by Yunfeng Chao, Yan Han et al

2D nanomaterials play a critical role in realizing high-performance flexible electrodes for wearable energy storge devices, owing to their merits of large surface area, high conductivity and high strength. The electrode is a complex system and the performance is determined by multiple and interrelated factors including the intrinsic properties of materials and the structures at different scales from macroscale to atomic scale. Multiscale design strategies have been developed to engineer the structures to exploit full potential and mitigate drawbacks of 2D materials. Analyzing the design strategies and understanding the working mechanisms are essential to facilitate the integration and harvest the synergistic effects. This review summarizes the multiscale design strategies from macroscale down to micro/nano-scale structures and atomic-scale structures for developing 2D nanomaterials-based flexible electrodes. It starts with brief introduction of 2D nanomaterials, followed by analysis of

2d materialsEnergy storage devicesFlexible electrodesUltiscale design strategies

Graphene-based fiber for energy and health by Kezhong Wang

Portable, wearable and implantable medical devices that chronically monitor or communicate with the nervous system are indispensable in healthcare. Currently the development of these versatile devices is limited by two bottlenecks: functional microelectrodes to communicate with central and peripheral nervous systems and the power sources to drive the devices. The microelectrode needs to be flexible, capable of delivering high charge capacity and inducing minimal immune rejection response. In addition to the need for high energy density, the power supply should be flexible and robust enough to accommodate the volume and shape requirements of the electronic devices, and deformable to be adapted with human movements. Graphene fiber (GF) is a microscopic carbonaceous fiber composed of nanoscopic graphene sheets with highly ordered structure. It is a promising candidate for wearable and implantable electronics due to its robustness and flexibility, high surface area and charge injection cap

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