Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Dielectric Polarization in a Capacitor

Dielectric Polarization in a Capacitor

The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...

Capacitor With A Dielectric

Capacitor With A Dielectric

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.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...

Design Example: Capacitance Multiplier Circuit

Design Example: Capacitance Multiplier Circuit

In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.

Capacitors

Capacitors

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.
When a voltage source is connected to a capacitor, positive and negative charges accumulate on the opposite plates. This accumulation generates a potential difference that equals the product of the...

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

The relationship between esports and cognitive function: A scoping review.

PloS one·2026

Same author

A rhizobium-induced FT-FD module locally activates nodule stem cell gene to promote nodulation.

Nature communications·2026

Same author

Targeting the Light-Harvesting Complex I Gene Lhca4 Confers Saline-Alkali Tolerance in Rice Without Yield Penalty.

Plant, cell & environment·2026

Same author

Neoadjuvant therapy with anlotinib in a 5-year-old child with advanced papillary thyroid carcinoma: a case report.

Frontiers in pediatrics·2026

Same author

Analysis of the performance of LSTM-DNN models with the consideration of signal complexity in milling processes.

Journal of intelligent manufacturing·2026

Same author

Kinetic-dimension-enabled hydrogen sensing <i>via</i> spillover in oriented conductive polymer fiber networks.

Nanoscale·2026

Search research articles

Related Experiment Video

Updated: Mar 29, 2026

Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management

Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management

Published on: September 2, 2015

Impedance-driven capacitance amplification in dielectric gradient all-fiber non-ionic electronic skin.

Wendong Li¹, Le Xi¹, Mingyang Lu²

¹School of Aeronautics and Astronautics, Sichuan University, Chengdu, PR China.

Nature Communications

|March 28, 2026

Summary

This study presents a novel non-ionic electronic skin with enhanced sensitivity and thermal stability. The impedance-driven design enables precise tactile sensing in extreme environments, overcoming limitations of current ionic systems.

More Related Videos

Bidirectional Electrical and Optoelectronic Interfaces in Healthy and Ischemic Ex Vivo Rat Hearts

Bidirectional Electrical and Optoelectronic Interfaces in Healthy and Ischemic Ex Vivo Rat Hearts

Published on: July 18, 2025

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

Published on: March 13, 2017

Related Experiment Videos

Last Updated: Mar 29, 2026

Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management

Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management

Published on: September 2, 2015

Bidirectional Electrical and Optoelectronic Interfaces in Healthy and Ischemic Ex Vivo Rat Hearts

Bidirectional Electrical and Optoelectronic Interfaces in Healthy and Ischemic Ex Vivo Rat Hearts

Published on: July 18, 2025

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

Published on: March 13, 2017

Area of Science:

Materials Science
Electronics
Sensors

Background:

Non-ionic electronic skins offer environmental stability but suffer from low sensitivity due to single-mode dielectric modulation.
Ionic sensing systems are limited by leakage, volatility, and temperature sensitivity.

Purpose of the Study:

To develop a highly sensitive, thermally robust non-ionic capacitive electronic skin.
To overcome the sensitivity limitations of conventional non-ionic sensors using impedance engineering.

Main Methods:

Introduced a dielectric-gradient, fiber-integrated non-ionic capacitive architecture.
Utilized an impedance-driven enhancement mechanism with controlled fiber deformation.
Investigated pressure-induced reduction of interfacial resistance and impedance.

Main Results:

Achieved ultrahigh sensitivity of 169.8 kPa⁻¹ over a wide pressure range (20 Pa–8 MPa).
Demonstrated stable operation from -80°C to 200°C with <6% deviation.
Integrated into a tactile-sensing glove, achieving 99.25% accuracy in tool recognition under extreme temperatures.

Conclusions:

Impedance engineering is a universal strategy for high-gain, thermally robust non-ionic electronic skins.
The developed electronic skin enables precision tactile sensing in previously inaccessible environments.
This technology advances flexible electronics for extreme condition applications.