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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Scientists have been hoping that semiconductor quantum dots (tiny semiconductor particles that are often described as artificial atoms) could solve this problem. Rupendra Brahambhatt, Interesting Engineering, 8 Mar. 2026 By tuning the gate voltages of each quantum dot, the researchers reproduced the jump in conductivity. IEEE Spectrum, 4 Feb. 2026 Its 50-inch 4K panel uses quantum dot tech for vibrant colors and Dolby Vision HDR for sharp contrast. PC Magazine, 3 Dec. 2025 Its quantum dot technology delivers intense, natural color. Parker Hall, Wired News, 30 Nov. 2025 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 10 Mar. 2026.

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