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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Recent Advancement on Stretchable and Wearable Electronics
Presentation Title Laser Writing and Photonic Reduction of High Performance Supercapacitors on Flexible Substrates
On-Site Speaker (Planned)
Abstract Scope We developed an innovative and facile approach to fabricate high performance supercapacitors on flexible substrates with femtosecond laser writing and photonic reduction. Au-graphene oxide nanocomposite is used for electrical collectors. Unlike previous studies collectors are fabricated through conventional photolithography gold electrodes is directly written by femtosecond laser reduction of Au ions. We found that gold nanoparticles can be well sintered on the surface of reduced graphene. The reduced graphene also work as glues to bridge the electrical interconnection. The measured conductivity of Au/reduced graphene reaches 10% of that of bulk gold. With optimized interdigital structure, the areal capacitor is achieved as 1.5 mF/cm2. The charge’discharge rate can be as fast as 1 KV/s. With modifying the surface properties we successfully write such an energy device on various flexible substrates, such as, paper and polyimide. High performance supercapacitors can find attractive applications in portable device, wearable electronics and biomedical micorsystems.
Proceedings Inclusion? Planned: TMS Journal: Journal of Electronic Materials


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Laser Writing and Photonic Reduction of High Performance Supercapacitors on Flexible Substrates
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