Thin film supercapacitors were fabricated using printable materials to make flexible devices on plastic. The active electrodes were made from sprayed networks of single-walled carbon nanotubes (SWCNTs) serving as both electrodes and charge collectors. Using a printable aqueous gel electrolyte as well as an organic liquid electrolyte, the performances of the devices show very high energy and pow...

Plasma enhanced chemical vapor deposition (PECVD) is a versatile technique to obtain vertically densealigned carbon nanotubes (CNTs) at lower temperatures than chemical vapor deposition (CVD). In this work, we used magnetron sputtering to deposit iron layer as a catalyst on silicon wafers. After that, radio frequency (rf) assisted PECVD reactor was used to grow CNTs. They were treated with wate...

Guest editors Zhaojun Han, Ruopian Fang, Dewei Chu, Da-Wei Wang and Kostya (Ken) Ostrikov, introduce this Nanoscale Advances themed issue on supercapacitors.

[1] Atmospheric fronts are important for the day-to-day variability of weather in the midlatitudes, particularly during winter when extratropical storm-tracks are at their maximum intensity. Fronts are often associated with heavy rain, and strongly affect the local space-time distribution of rainfall. A recently developed objective front identification method that distinguishes between cold, wa...

Zinc-Ion Hybrid Supercapacitors In article number 2300630, Bon-Ryul Koo, Geon-Hyoung An, and co-workers present a novel design for high-performance zinc-ion hybrid supercapacitors. They achieve this by introducing multifunctional VOSO4 additives, which can spontaneously generate zinc vanadium hydrate layer with oxygen vacancies on the surface of electrode. This study provides new strategy addit...

The very fast evolution in wearable electronics drives the need for energy storage micro-devices, which have to be flexible. Micro-supercapacitors are of high interest because their power density, long cycle lifetime and charge discharge. Recent developments on micro-supercapacitors focus improving overall electrochemical performance, mechanical properties. In this review, different types confi...