Cold cathode - Wikipedia
A cold cathode is distinguished from a hot cathode that is heated to induce thermionic emission of electrons. Discharge tubes with hot cathodes have an envelope filled with low-pressure gas and containing two electrodes.
Cold Cathode - an overview | ScienceDirect Topics
The cold cathode is a device for electron field emission replacing the hot filament in vacuum electronics. High-power high-frequency devices such as the TWT are still the backbone of the high-power amplifier.
Cold Cathode | Light Bulb Types - Bulbs.com
Cold Cathode. What are they? A cold cathode fluorescent lamp (CCFL) is a type gas-discharge lamp similar to linear fluorescent or compact fluorescent lamps. CCFLs are used in a number of different specialty applications, such as cold-weather lighting, display back lighting, and signage.
Recent Progress on ZnO Nanowires Cold Cathode and Its Applications …
Aug 23, 2021 · This paper aims to provide a comprehensive review on recent progress on the ZnO nanowire cold cathode and its applications. We will begin with a brief introduction on the synthesis methods and discuss their advantages/disadvantages for cold cathode applications.
Advances in cold cathode physics and technology - IEEE Xplore
May 31, 1999 · We review recent progress in the physics and technology of cold cathode electron emitters. The characteristics of emission from field emitter arrays, photocathodes, and ferroelectrics are presented, together with a summary of the understanding of …
The Cold Truth About Cold Cathode Lighting – GoodBulb
A cold cathode fluorescent lamp (CCFL) is a lighting system that utilizes both fluorescence and electron discharge in order to produce light. This means they operate similar to a standard fluorescent lamp, by exciting electrodes, but they just go about it differently.
Cold-Cathode Devices | Elektor Magazine
Sep 20, 2023 · Cold-cathode devices are a type of gas-discharge device that uses a low-pressure gas to produce light. The simplest cold-cathode device is the neon lamp, which is often used as an indicator light. Other common cold-cathode devices include neon signs, voltage regulator tubes, and gas-discharge surge suppressors.
Novel cold cathode materials and applications - ScienceDirect
Jan 31, 2005 · In this review, we shall focus on several kinds of novel cold cathode materials that have been developed in the past decade. These include materials for microfabricated field-emitter arrays, diamond and related films, carbon nanotubes, other quasi one-dimensional nanomaterials and printable composite materials.
Carbon nanotubes as cold cathodes | Nature
Oct 12, 2005 · Here we describe a microwave diode that uses a cold-cathode electron source consisting of carbon nanotubes1 and that operates at high frequency and at high current densities.
Recent Progress on ZnO Nanowires Cold Cathode and Its …
Aug 23, 2021 · This paper aims to provide a comprehensive review on recent progress on the ZnO nanowire cold cathode and its applications. We will begin with a brief introduction on the synthesis methods and discuss their advantages/disadvantages for cold cathode applications.
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