Work function

USAGE SUMMARY

The phrase "Work function" is correct and usable in written English.
It is typically used in physics and materials science to refer to the minimum energy needed to remove an electron from a solid to a point in a vacuum. Example: "The work function of the material determines its efficiency in photoelectric applications."

✓ Grammatically correct

Science

Academia

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Interestingly, by appropriate choice of the metal source for functionalization, work function engineering can lead to work function values higher or lower than that for pristine metallic nanotubes.

Carbon

4.3 Work function.

Stanford University

It's how American illusions about work function.

The Guardian - Opinion

Smoluchowski, R. Anisotropy of the electronic work function of metals.

Nature

The collector material should have a small work function.

Encyclopedia Britannica

Pt Ru alloy was selected from the work function viewpoint.

Applied Surface Science

The work function of the deposited coatings was measured.

Surface and Coatings Technology

The electronic work function ΦAu{111} by photoemission.

Electrochimica Acta

Details on the determination of work function based on Kelvin probe measurements were provided elsewhere.

Nature

Lang, N. D. & Kohn, W. Theory of metal surfaces: Work function.

Nature

The work function (WF) of PBDTT-ffQx and PCBM thin films were measured.

Nature

Expert writing Tips

Best practice

When discussing the "work function" of a material, always specify the material and, if relevant, the surface conditions, as the "work function" can vary.

Common error

Avoid using "work function" and Fermi level interchangeably. "Work function" refers to the energy needed to remove an electron from a material's surface, while the Fermi level is the highest occupied energy level at absolute zero. They are related but distinct concepts.

Linguistic Context

The term "work function" functions as a noun phrase, primarily in scientific and technical contexts. It represents a specific physical property of materials. Ludwig AI's analysis indicates that it's used to denote the minimum energy required to remove an electron from a solid surface.

Expression frequency: Very common

Frequent in

Science

65%

Academia

20%

News & Media

5%

Less common in

Encyclopedias

5%

Formal & Business

0%

Wiki

0%

Ludwig's WRAP-UP

The term "work function" is a well-established noun phrase in scientific and academic discourse, denoting the minimum energy required to remove an electron from a solid surface. As Ludwig AI confirms, it's grammatically correct and widely used in contexts such as physics, materials science, and engineering. Its usage is particularly frequent in scientific publications and academic research, less frequent but valid in encyclopedias and news media. When writing about "work function", specify the material and surface conditions. Avoid confusing it with the Fermi level, which is a related but distinct concept. Alternatives like "electron binding energy" and "threshold energy for emission" may be suitable depending on the specific context.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

surface work function

Highlights that the "work function" is a surface property.

electronic work function

Explicitly specifies that it is the electronic "work function".

threshold energy for emission

Emphasizes the minimum energy needed for electron emission, directly related to "work function".

minimum extraction energy

Focuses on the extraction process, highlighting the energy required to remove an electron from a material.

electron binding energy

Focuses on the energy required to remove an electron, similar to "work function" but emphasizes binding.

energy barrier for electron emission

Describes the energy needed to overcome the surface barrier to release an electron.

photoelectric threshold

Specifically refers to the minimum frequency of light required for photoelectric emission, closely related to the energy aspect of "work function".

ionization potential

While generally used for atoms and molecules, it's conceptually similar as it represents the energy needed to remove an electron.

surface potential barrier

Describes the potential energy an electron must overcome at a surface, related to the "work function".

electron affinity

Indicates the energy released when an electron is added to a neutral atom or molecule, representing the energy aspect.

FAQs

How is "work function" used in the context of physics?

In physics, "work function" refers to the minimum energy required to remove an electron from a solid surface. It is a crucial parameter in understanding phenomena like photoelectric emission and thermionic emission.

What factors can influence the "work function" of a material?

The "work function" can be influenced by factors such as the material's surface composition, crystal structure, temperature, and the presence of adsorbates. Surface treatments can also alter the "work function".

What's the difference between "ionization energy" and "work function"?

"Work function" refers to the energy needed to remove an electron from a solid surface, whereas "ionization energy" is the energy required to remove an electron from an isolated atom or molecule in the gas phase. The former considers a solid-state environment while the latter concerns isolated particles.

How is "work function" measured?

The "work function" can be measured using various techniques, including ultraviolet photoelectron spectroscopy (UPS), Kelvin probe microscopy, and thermionic emission measurements. Each method relies on different principles to determine the minimum energy needed for electron emission.