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Related Concept Videos

Capacitor With A Dielectric01:18

Capacitor With A Dielectric

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Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
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MOS Capacitor01:25

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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.
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Energy Stored in a Capacitor01:12

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When an archer pulls the string in a bow, he saves the work done in the form of elastic potential energy. When he releases the string, the potential energy is released as kinetic energy of the arrow. A capacitor works on the same principle in which the work done is saved as electric potential energy. The potential energy (UC) could be calculated by measuring the work done (W) to charge the capacitor.
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Capacitors and Capacitance01:18

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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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Capacitors01:15

Capacitors

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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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Updated: Dec 12, 2025

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
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Textile-based supercapacitors for flexible and wearable electronic applications.

Poonam Sundriyal1, Shantanu Bhattacharya2,3

  • 1Microsystems Fabrication Laboratory, Department of Mechanical Engineering, Indian Institute of Technology, Kanpur, 208016, India.

Scientific Reports
|August 9, 2020
PubMed
Summary

Researchers developed flexible, eco-friendly supercapacitors using bamboo fabric and metal oxides. This sustainable power source integrates seamlessly with wearable electronics, offering high performance and durability.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Sustainable Technology

Background:

  • Wearable electronics require compatible power sources, but current options are inflexible, costly, and environmentally unfriendly.
  • Electronic textiles are emerging as a key technology for next-generation wearable devices.
  • There is a need for sustainable and flexible substrates for energy storage in wearable applications.

Purpose of the Study:

  • To demonstrate bamboo fabric as a sustainable substrate for supercapacitor devices.
  • To develop a replicable printing process for creating textile-based energy storage.
  • To create a flexible, high-performance battery-supercapacitor hybrid device for wearable electronics.

Main Methods:

  • Direct printing of metal oxide inks (MnO2-NiCo2O4 positive electrode, rGO negative electrode) onto bamboo fabric.
  • Utilized LiCl/PVA gel as a solid-state electrolyte.
  • Fabricated a textile-based asymmetric supercapacitor device.

Main Results:

  • Achieved high areal capacitance of 2.12 F/cm² (1,766 F/g) at 2 mA/cm².
  • Demonstrated excellent energy density (37.8 mW/cm³) and power density (2,678.4 mW/cm³).
  • Supercapacitor maintained performance under mechanical deformation, showing flexibility and strength.

Conclusions:

  • Bamboo fabric serves as a viable, sustainable substrate for high-performance supercapacitors.
  • The developed printing process is replicable for integrating energy storage into electronic textiles.
  • This strategy supports the advancement of sustainable electronic textiles for wearable applications.