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

Examples of quantum dot in a Sentence

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The color of the light emitted by the quantum dot depends on the wavelength, which is impacted by the quantum dot's size. Scharon Harding, Ars Technica, 17 Sep. 2024 Controlled by Roku's intuitive smart system, this TV is easy to use and easy on the eyes thanks to features like local dimming for solid black levels and contrast, and punchy quantum dot colors. Ryan Waniata, Wired News, 13 Apr. 2025 Microsoft’s solution employs quantum dots and microwave reflectometry to detect single-electron differences in nanowires—akin to discerning a single grain of sand in a billion. Luis E. Romero, Forbes, 19 Feb. 2025 In principle, this technique, known as doping, could also help manipulate the electronic properties of quantum dots. IEEE Spectrum, 5 Apr. 2011 See All Example Sentences for quantum dot

Word History

First Known Use

1985, in the meaning defined above

Time Traveler
The first known use of quantum dot was in 1985

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Cite this Entry

“Quantum dot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20dot. Accessed 19 May. 2025.

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