Two-Dimensional Transition Metal Dichalcogenide Micro-Supercapacitors

University of North Texas Background
The technology concerns making flexible supercapacitors that can be made with two-dimensional (2D) materials. 2D layered materials have been chosen because of their unique structure, which makes them a good flexible energy storage for wearable electronics. The technology is a new way to make flexible and high-efficiency supercapacitors out of 2D materials by sputtering them right away. The supercapacitor electrode made with 2D materials is very stable and strong when it is attached to the substrate. The optimized MoS2-based supercapacitor has a high capacitance, a lot of power, and a lot of energy in a small space. A good cyclic stability and a low equivalent series resistance (ESR) were also shown by this supercapacitor electrode. It only had a few ohms of resistance. An efficient wearable electronic device could be made more efficient by using a flexible and high-performance supercapacitor made of two different materials.
Technology Overview
This technology involves making a layered MoS2 supercapacitor. It does this by: providing a substrate; providing a Molybdenum source; using a magnetron to make Molybdenum ions; sputtering the Molybdenum on the substrate to make a thin layer of Molybdenum; placing the substrate in a CVD chamber; and providing a sulphur source. A supercapacitor is made by providing a substrate, a transition metal source, a magnetron, and a plasma source. The transition metal ions are sputtering on the substrate to form a thin layer of transition metal. Then, the substrate is placed in a CVD chamber and a chalcogen source is provided. The chalcogen source is used to make chalcogen ions (MX2). It could be Mo, W, or Nb. The chalcogen could be S, Se, or Te. It could also be a different type of metal.

Benefits

The electrode is very stable and strong.
High capacitance, a lot of power, and a lot of energy in a small space.
Good cyclic stability and a low equivalent series resistance (ESR). 

Applications
Make next-generation portable and wearable electronic devices, implantable medical devices, and remote sensors. They can also be used as flexible energy storage for wearable electronics because they have a unique structure that makes them more efficient than other types of materials.

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