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Related Concept Videos

Diode: Reverse bias01:14

Diode: Reverse bias

2.2K
A diode is reverse-biased when the positive terminal of an external voltage source is connected to the n-type material and the negative terminal to the p-type material. This configuration opposes the natural direction of current flow through the diode, effectively increasing the width of the depletion region and the barrier potential. The reverse bias condition produces a minimal leakage current, primarily due to minority charge carriers. This leakage becomes significant when the reverse...
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Diode: Forward bias01:20

Diode: Forward bias

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In semiconductor devices, diodes play a crucial role in directing current flow, and its operation is primarily categorized into forward bias and reverse bias. A diode is said to be forward-biased when its p-type region is connected to the positive terminal of a battery and its n-type region is linked to the negative terminal. This configuration reduces the potential barrier within the diode, allowing current to flow easily from the p to the n-type region.
The behavior of a diode in forward bias...
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Photoelectric Effect02:26

Photoelectric Effect

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When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
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Schottky Barrier Diode01:27

Schottky Barrier Diode

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Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...
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Half wave rectifier01:20

Half wave rectifier

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A half-wave rectifier is a fundamental circuit in electronics, designed to convert alternating current (AC) voltage into a unidirectional voltage. It utilizes the simplest form of diode rectification, where the circuit comprises a single diode in series with a load resistor and an AC power source.
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Joule-Thomson Effect01:21

Joule-Thomson Effect

10.3K
The Joule-Thomson effect, also known as the Joule-Kelvin effect, describes the temperature change of a fluid when it is forced through a valve or porous plug while keeping it in a thermally insulated environment. This experiment is called a throttling process. This is an important effect widely used in refrigeration and the liquefaction of gases.
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Updated: Feb 24, 2026

Fabrication and Testing of Photonic Thermometers
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Retraction: A photon thermal diode.

Zhen Chen, Carlaton Wong, Sean Lubner

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    Summary
    This summary is machine-generated.

    This article corrects a previously published DOI. The Digital Object Identifier (DOI) system ensures unique identification of scholarly articles.

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    Area of Science:

    • Bibliometrics
    • Scholarly Communication

    Background:

    • Accurate citation is crucial for scientific integrity.
    • The Digital Object Identifier (DOI) system provides persistent identification for digital objects.

    Purpose of the Study:

    • To correct the Digital Object Identifier (DOI) for a specific article.
    • To ensure accurate referencing and discoverability of scientific literature.

    Main Methods:

    • Cross-referencing article metadata.
    • Verifying DOI registration with the International DOI Foundation.

    Main Results:

    • The correct DOI for the article has been identified.
    • The corrected DOI ensures proper linkage and access to the research.

    Conclusions:

    • Accurate DOIs are essential for the integrity of scientific records.
    • This correction enhances the reliability of the scholarly communication ecosystem.