dopant

noun

dop·​ant ˈdō-pənt How to pronounce dopant (audio)
: an impurity added usually in minute amounts to a pure substance to alter its properties (such as conductivity)

Examples of dopant in a Sentence

Recent Examples on the Web
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By the late 1980s, integrated circuits had become so small that the industry needed a way to measure the dopants in two dimensions. Allison Marsh, IEEE Spectrum, 17 Sep. 2025 Density Functional Theory calculations confirmed that cobalt and iron atoms, coordinated through nitrogen dopants, optimize reaction pathways and electron transfer, explaining the high efficiency. Neetika Walter, Interesting Engineering, 10 Sep. 2025 The key has been developing processes to add dopants without degrading these properties. New Atlas, 30 Nov. 2024 The nitrogen is present in small quantities as a dopant and may not have a significant influence on the structural measurements done in this new report. John Timmer, Ars Technica, 16 May 2023 ET News states that the panels are set to use Samsung's ‘M12 OLED material set’ which comprises the red, green and blue pixel’s dopant, host and prime elements in OLED displays. Gordon Kelly, Forbes, 21 June 2022

Word History

Etymology

dope entry 2

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of dopant was in 1962

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Cite this Entry

“Dopant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dopant. Accessed 7 Oct. 2025.

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