Bottom-Up, On-Surface-Synthesized Armchair Graphene Nanoribbons for Ultra-High-Power Micro-Supercapacitors
2020
Liu, Zhaoyang | Chen, Zongping | Wang, Can | Wang, Hai I. | Wuttke, Michael | Wang, Xiao-Ye | Bonn, Mischa | Chi, Lifeng | Narita, Akimitsu | Müllen, K. (Klaus)
Bottom-up-synthesized graphene nanoribbons (GNRs) with excellent electronic properties are promising materials for energy storage systems. Herein, we report bottom-up-synthesized GNR films employed as electrode materials for micro-supercapacitors (MSCs). The micro-device delivers an excellent volumetric capacitance and an ultra-high power density. The electrochemical performance of MSCs could be correlated with the charge carrier mobility within the differently employed GNRs, as determined by pump–probe terahertz spectroscopy studies.
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