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What is a diode? 


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A diode is a semiconductor device that acts as a one-way switch for current, allowing current to flow easily in one direction but severely restricting current in the opposite direction . Diodes conduct electric current mainly in one direction and can be used in electronic devices with ultralow power consumption . The union of two extrinsic semiconductors doped with donor and acceptor impurities forms a diode, which has specific electrical characteristics such as energy band structure and current-voltage characteristic curve . Diodes can be used in light emitting devices, such as quantum dot-based diodes, which have both electroluminescence and photoelectric response performance . Diodes are fundamental components in electronic and optoelectronics technology, with applications in amplifier circuits, solar cells, photodetectors, and semiconductor lasers .

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A diode is a semiconductor device that acts as a one-way switch for current, allowing it to flow easily in one direction but restricting it from flowing in the opposite direction.
The paper provides a didactic model of a diode, which is a union of two extrinsic semiconductors doped with donor and acceptor impurities.
Book ChapterDOI
Naci Balkan, Ayse Erol 
01 Jan 2021
A diode is a two terminal semiconductor device that conducts in the forward direction without any potential drop across its terminals, while blocking conduction in the reverse direction.
Journal ArticleDOI
Toshiya Ideue, Yoshihiro Iwasa 
01 Aug 2020-Nature
12 Citations
The paper does not provide a direct definition of a diode.
The paper does not provide a definition of a diode.

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