quantum dot


Definition of 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

Examples of quantum dot in a Sentence

Recent Examples on the Web For the 2020 lineup, both the 5- and 6-Series will feature quantum dot LED (QLED) technology. Jacob Krol, CNN Underscored, "TCL is going all in on QLED for its 2020 5- and 6-Series TVs," 11 Aug. 2020 The unit cell developed by Dzurak’s team comprises two qubits confined in a pair of quantum dots embedded in silicon. Caroline Delbert, Popular Mechanics, "Hot Qubits Could Deliver a Quantum Computing Breakthrough," 17 Apr. 2020 This 2019 series combines Vizio's penchant for low prices with fancy TV tech like quantum dots, full-array local dimming, and HDR/Dolby Vision compatibility. Lee Neikirk, USA TODAY, "The best Cyber Monday 65-inch TV (and up) deals you can get right now," 2 Dec. 2019 An electrical charge draws electrons, which arrange themselves into layers and form quantum dots. Caroline Delbert, Popular Mechanics, "Artificial Atoms Could Usher In the Quantum Revolution," 11 Feb. 2020 The conversation was part interview, part tutorial, with Akin-Ojo scribbling calculations and diagrams of quantum dots — nanoscale crystals that could be useful for solar cells and in the design of novel drugs. Quanta Magazine, "The Man Making Rwanda Into a Hub for Physics," 3 Mar. 2020 The 2018 TCL 5 Series is still excellent—also offering Dolby Vision and Roku—but its color gamut isn't as strong as the newer 6 Series, which utilizes quantum dot technology (QLED). Wired Staff, Wired, "14 of the Best Deals on Our Favorite Tech," 18 Jan. 2020 The team ended up using a technology called quantum dots, tiny semiconducting crystals that reflect light and were originally developed to label cells during research. Karen Weintraub, Scientific American, "Invisible Ink Could Reveal whether Kids Have Been Vaccinated," 18 Dec. 2019 Its efficacy at delivering polio vaccine along with the fluorescent quantum dots has been confirmed in rats. Elizabeth Cooney, STAT, "Experimental vaccine patch embeds invisible dots under the skin, leaving record of immunization," 18 Dec. 2019

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.

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First Known Use of quantum dot

1985, in the meaning defined above

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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 22 Oct. 2020.

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