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 However, Clarke said there are different ways of encoding a qubit in a quantum dot (Loss-DiVincenzo, singlet-triplet, and exchange-only, for those curious). John Timmer, Ars Technica, 15 June 2023 Non-toxic quantum dots for CMOS shortwave infrared image sensors for consumer electronics. Jennifer Ouellette, Ars Technica, 18 Jan. 2024 So, an electron in a BLG quantum dot can occupy either of the two valleys. IEEE Spectrum, 30 Jan. 2024 The next step was to incorporate those quantum dots into a lab-scale photodetector. Jennifer Ouellette, Ars Technica, 18 Jan. 2024 Versus LCDs, quantum dots can reveal many more colors—potentially upwards of one billion—even at brightness levels that take advantage of newer techs like high dynamic range (HDR). IEEE Spectrum, 17 Dec. 2023 Kaoru says that in conventional approaches, such as fabricating a quantum dot single-photon emitter, the quantum particles are embedded into the outside of a tapered fiber. IEEE Spectrum, 10 Jan. 2024 Burn-in risk varies from monitor to monitor Advancements in the materials science of OLED and quantum dots are big contributors to OLED displays' growing life spans. Scharon Harding, Ars Technica, 3 Nov. 2023 The movement of electrons in quantum dots is highly constrained. Laura Baisas, Popular Science, 4 Oct. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'quantum dot.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 21 May. 2024.

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