quantum dot


: 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

Example Sentences

Recent Examples on the Web Nanosys says adding a blue quantum dot to the current red and green array won’t cost much (less than 10 percent more) and can reduce the harm caused by blue light without sacrificing colors or contrast. IEEE Spectrum, 14 Jan. 2023 As Roku’s first attempts at televisions, the Select and Plus Series are more budget-focused, emphasizing the Roku TV platform and features without featuring more advanced display technology like mini-LED backlight systems or quantum dot panels. PCMAG, 4 Jan. 2023 Most exciting is a brand new 77-inch QD-OLED, but there are also new Mini LED, and quantum dot LCD TVs further down the range. Verge Staff, The Verge, 4 Jan. 2023 By using different materials and sizes, researchers can fine-tune the colors of light that quantum dots can absorb, a way of isolating good candidates for quantum dot solar cells [CNN]. Andrew Moseman, Discover Magazine, 7 May 2010 The battery manages such a speedy charge by utilizing quantum dot technology. Carl Engelking, Discover Magazine, 10 Apr. 2014 Weighing in at roughly 27 pounds, this 50-inch 4K QLED television from TCL delivers a clear picture with Dolby Vision HDR and uses quantum dot technology for better brightness and deep color volume. Kevin Cortez, Popular Mechanics, 11 Nov. 2022 The quantum dot panel means viewers will experience bright colors, deep blacks, and excellent contrast. Louryn Strampe, WIRED, 10 Oct. 2022 Beyond the resolution, the 6-Series also has mini-LED backlighting for deeper black levels, and a quantum dot panel for brighter, bolder colors. Gear Team, WIRED, 1 Sep. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quantum dot.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1985, in the meaning defined above

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

Dictionary Entries Near quantum dot

Cite this Entry

“Quantum dot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20dot. Accessed 6 Feb. 2023.

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