Publication

Metal-insulator-metal tunnelling diode for operation in the visible or infrared spectrum

2026

Abstract

Disclosed is a diode device (1) including an insulator (7) extending between and in contact with two metal terminals (3, 5), wherein the insulator comprises at least one epsilon-near-zero (enz) material, or comprises at least one epsilon-negative (eng) material (7a) and a second insulator material (7b) forming a double insulator structure, and an electron source layer (9), particularly of graphene, between a metal terminal and the enz or eng material. the insulator provides a reduced effective capacitance which permits rectifying diode operation at thz, infrared or visible frequencies, particularly for a solar radiation rectenna.

Official source

https://infoscience.epfl.ch/entities/publication/5234caf3-44b3-4289-ad69-28012aa13a61

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2026

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/5234caf3-44b3-4289-ad69-28012aa13a61

About this result

Related concepts (32)

MOSFET

The metal-oxide-semiconductor field-effect transistor (MOSFET, MOS-FET, or MOS FET) is a type of field-effect transistor (FET), most commonly fabricated by the controlled oxidation of silicon. It has an insulated gate, the voltage of which determines the conductivity of the device. This ability to change conductivity with the amount of applied voltage can be used for amplifying or switching electronic signals. A metal-insulator-semiconductor field-effect transistor (MISFET) is a term almost synonymous with MOSFET.

Diode

A diode is a two-terminal electronic component that conducts current primarily in one direction (asymmetric conductance). It has low (ideally zero) resistance in one direction, and high (ideally infinite) resistance in the other. A semiconductor diode, the most commonly used type today, is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. It has an exponential current–voltage characteristic. Semiconductor diodes were the first semiconductor electronic devices.

Insulator (electricity)

An electrical insulator is a material in which electric current does not flow freely. The atoms of the insulator have tightly bound electrons which cannot readily move. Other materials—semiconductors and conductors—conduct electric current more easily. The property that distinguishes an insulator is its resistivity; insulators have higher resistivity than semiconductors or conductors. The most common examples are non-metals. A perfect insulator does not exist because even insulators contain small numbers of mobile charges (charge carriers) which can carry current.

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Metal-insulator-metal tunnelling diode for operation in the visible or infrared spectrum

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