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MOS Capacitor

MOS Capacitor

A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...

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Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance

Published on: November 30, 2022

Printable Gel Polymer Electrolytes for Solid-State Printed Supercapacitors.

Myeong-Lok Seol^1,2, Inho Nam³, Ellie Sadatian¹

¹Center for Nanotechnology, NASA Ames Research Center, Moffett Field, CA 94035, USA.

Materials (Basel, Switzerland)

|January 13, 2021

Summary

This summary is machine-generated.

Researchers developed printable gel-polymer electrolytes (GPEs) for advanced energy storage. The best performing GPE, using polyvinylidene difluoride (PVDF) and LiClO4, shows promise for printed supercapacitors and other devices.

Keywords:

gel polymer electrolyte in-plane manufacturing printing solid-state supercapacitors

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Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Printable supercapacitors offer manufacturing advantages but require optimized printable electrolytes.
Printable electrolytes need high ionic conductivity, suitable viscosity, small particle size, and chemical stability.

Purpose of the Study:

To develop and analyze printable gel-polymer electrolytes (GPEs) for printed energy devices.
To investigate various polymer-conductive substance combinations for GPE formulations.

Main Methods:

Synthesized five GPE formulations using different polymer matrices and conductive substances.
Evaluated electrochemical performance, including gravimetric and areal capacitance, of printed supercapacitors with the GPEs.
Analyzed in-plane solid-state supercapacitors based on printed GPEs.

Main Results:

A GPE composed of polyvinylidene difluoride (PVDF) and LiClO4 demonstrated superior electrochemical performance.
Achieved gravimetric capacitance of 176.4 F/g and areal capacitance of 152.7 mF/cm2 at 10 mV/s.
Identified key attributes of printable electrolytes for high-performance printed energy devices.

Conclusions:

Printable GPEs are crucial for advancing printed energy storage solutions.
The PVDF/LiClO4 GPE shows significant potential for applications in printed supercapacitors, batteries, fuel cells, and solar cells.
This research highlights the importance of printable electrolytes in enabling next-generation printed electronics.