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Updated: Sep 17, 2025

Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy
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费米级管理的多障碍异质连接二极管用于太赫兹检测

Iñigo Belio-Apaolaza1, James Seddon2, Cyril C Renaud2

  • 1Department of Electronic and Electrical Engineering, University College London, London, UK. inigo.apaolaza.21@ucl.ac.uk.

Scientific reports
|July 2, 2025
PubMed
概括

费米级管理屏障二极管 (FMBD) 对特拉赫兹 (THz) 异质接收器显示出希望,比传统二极管提供更好的性能. 一个新的多障碍设计 (FMMBD) 进一步提高了灵敏度,接近量子极限的10倍.

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Schottky Barrier Diode

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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Metal-Semiconductor Junctions

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Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
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Fermi Level Dynamics

The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
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Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
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