quantum dot
noun
: a semiconductor nanocrystal exhibiting quantum mechanical effects that allow it to mimic the properties of an atom
The quantum dot is a semiconducting (or metallic) region so tiny that it is essentially confined in all three dimensions; like an atom, it contains a finite number of charges and has discrete energy levels.—
Barbara Goss Levi
Barbara Goss LeviExamples of quantum dot in a Sentence
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In 2023, the prize was shared by three researchers who worked to discover and develop quantum dots, used in LED lights and TV screens, as well as by surgeons when removing cancer tissue.
—Katie Hunt, CNN Money, 8 Oct. 2025
The science of carbon quantum dots At the heart of this breakthrough are carbon quantum dots (CQDs), tiny particles that measure less than a virus in size.
—Sujita Sinha, Interesting Engineering, 24 Sep. 2025
Carbon quantum dots are ultra-small nanoparticles (500,000 times smaller than a grain of sand).
—Hannah Millington, MSNBC Newsweek, 23 Sep. 2025
Additionally, while costs are falling globally, new innovations like quantum dots are on the horizon, and consumer protections matter more than ever.
—Dianne Plummer, Forbes.com, 22 Aug. 2025
See All Example Sentences for quantum dot
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Katie Hunt, CNN Money, 8 Oct. 2025
The science of carbon quantum dots At the heart of this breakthrough are carbon quantum dots (CQDs), tiny particles that measure less than a virus in size.
—Sujita Sinha, Interesting Engineering, 24 Sep. 2025
Carbon quantum dots are ultra-small nanoparticles (500,000 times smaller than a grain of sand).
—Hannah Millington, MSNBC Newsweek, 23 Sep. 2025
Additionally, while costs are falling globally, new innovations like quantum dots are on the horizon, and consumer protections matter more than ever.
—Dianne Plummer, Forbes.com, 22 Aug. 2025
See All Example Sentences for quantum dot
Cite this Entry
“Quantum dot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20dot. Accessed 25 Oct. 2025.
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