PHOTOEMISSIVE Meaning and
Definition
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The term "photoemissive" refers to a property or characteristic related to photoemission, which is the process by which light energy is converted to the emission of electrons from a material's surface. Specifically, photoemissive is used to describe materials, devices, or systems that are capable of exhibiting or utilizing photoemission.
In a more technical sense, photoemissive materials refer to substances that have a high quantum efficiency for emitting electrons when illuminated by light. These materials are typically semiconductors or other compounds with suitable energy band structures that allow the absorption of photons and subsequent ejection of electrons.
Devices or systems that incorporate photoemissive materials are often referred to as photoemissive devices or photomultipliers. These devices consist of a photoemissive surface or a series of multiple photoemissive stages which amplify the emitted electrons through a sequential process known as electron multiplication. Photoemissive devices are widely used in various scientific, industrial, and medical applications that require high sensitivity and detection capability. They are commonly employed in photomultiplier tubes, image intensifiers, particle detectors, and optical sensors.
The term "photoemissive" is mainly used within the context of physics, electronics, and optics to describe materials and devices that exhibit or are related to photoemission phenomena. It encompasses the understanding and usage of light-induced electron emission, providing a fundamental basis for various technological advancements and scientific investigations.
Common Misspellings for PHOTOEMISSIVE
- ohotoemissive
- lhotoemissive
- -hotoemissive
- 0hotoemissive
- pgotoemissive
- pbotoemissive
- pnotoemissive
- pjotoemissive
- puotoemissive
- pyotoemissive
- phitoemissive
- phktoemissive
- phltoemissive
- phptoemissive
- ph0toemissive
- ph9toemissive
- phoroemissive
- phofoemissive
- phogoemissive
Etymology of PHOTOEMISSIVE
The word "photoemissive" is derived from two roots: "photo-" and "emissive".
1. "Photo-" comes from the Greek word "phos" (φῶς), meaning "light". It is commonly used as a prefix to indicate a relation to or characteristic of light. For example, in words like "photograph" (a picture taken using light), "photosynthesis" (the process of converting light energy into chemical energy), or "photophobia" (fear or aversion to light).
2. "Emissive" comes from the Latin word "emissus", which is the past participle of the verb "emittere", meaning "to send forth" or "to release". It refers to something that emits, releases, or gives off. It generally indicates the ability of an object or substance to emit energy or particles.
Similar spelling word for PHOTOEMISSIVE
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