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Related Concept Videos

MOS Capacitor01:25

MOS Capacitor

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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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A spherical capacitor consists of two concentric conducting spherical shells of radii R1 (inner shell) and R2 (outer shell). The shells have  equal and opposite charges of +Q and −Q, respectively. For an isolated conducting spherical capacitor, the radius of the outer shell can be considered to be infinite.
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A device consisting of two electrical conductors that are separated by a distance and used to store electrical charges is called a capacitor. The space between the conductors is either a vacuum or an insulating material, called a dielectric. Capacitors have many applications, ranging from filtering static from radio reception to energy storage in heart defibrillators.
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Capacitors play a crucial role in car radios, where they filter and store frequencies to ensure clear signal reception. Essentially serving as energy storage devices, capacitors store energy within their electric field and are composed of two parallel conducting plates separated by a dielectric.
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Energy Stored in Capacitors01:10

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A parallel plate capacitor, when connected to a battery, develops a potential difference across its plates. This potential difference is key to the operation of the capacitor, as it determines how much electrical energy the capacitor can store.
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In 1749, Benjamin Franklin coined the word battery for a series of capacitors connected to store energy. Capacitors store electric potential energy that can be released over a short time. This property means capacitors have a wide range of applications.
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Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
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Polypyrrole Solid-State Supercapacitors Drawn on Paper.

Antonella Arena1, Graziella Scandurra1, Caterina Branca2

  • 1Department of Engineering, University of Messina, 98166 Messina, Italy.

Nanomaterials (Basel, Switzerland)
|December 8, 2023
PubMed
Summary
This summary is machine-generated.

Researchers developed eco-friendly solid-state supercapacitors on paper using polypyrrole (PPY) and dodecylbenzene sulfonic acid (DBSA). These devices offer high areal capacitance, demonstrating a simple method for advanced energy storage applications.

Keywords:
paper substratespolypyrrolesupercapacitor

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Development of high-performance, cost-effective energy storage devices is crucial.
  • Paper-based electronics offer a sustainable and flexible platform.
  • Solid-state supercapacitors require efficient electrode materials and electrolytes.

Purpose of the Study:

  • To develop solid-state supercapacitors on paper substrates using eco-friendly materials.
  • To achieve high areal capacitance for practical energy storage applications.
  • To investigate the use of polypyrrole (PPY) doped with dodecylbenzene sulfonic acid (DBSA) as an electrode material.

Main Methods:

  • Preparation of a stable, water-based PPY:DBSA ink.
  • Direct application of the ink onto paper substrates using rechargeable water pens.
  • Interfacing electrodes with a potassium hydroxide and chitosan-based polymer gel electrolyte.
  • Characterization using optical and electrical measurements, Raman spectroscopy, and Atomic Force Microscopy.

Main Results:

  • Achieved solid-state supercapacitors on paper with areal capacitance of approximately 100 mF⋅cm⁻².
  • Demonstrated electrically conducting solid-state tracks formed by the PPY:DBSA ink on paper.
  • Showcased the potential for improved capacitance by combining PPY:DBSA ink with nanostructured carbon materials.

Conclusions:

  • A simple, eco-friendly, and low-cost method for fabricating high-performance solid-state supercapacitors on paper was established.
  • The PPY:DBSA ink provides a viable electroactive material for paper-based energy storage.
  • Further enhancements in capacitance are achievable through material hybridization.