perovskite

noun
pe·​rov·​skite | \ pə-ˈräv-ˌskīt How to pronounce perovskite (audio) , -ˈräf- How to pronounce perovskite (audio) \

Definition of perovskite

: a yellow, brown, or grayish-black mineral consisting of an oxide of calcium and titanium and sometimes containing rare earth elements

Examples of perovskite in a Sentence

Recent Examples on the Web

First discovered in the Ural Mountains in western Russia, perovskite has raised eyebrows in testing—from 10 percent efficiency in 2012 to 20 percent in 2014. David Grossman, Popular Mechanics, "How Solar Panels Work (And Why They're Taking Over the World)," 6 July 2019 The earliest perovskite LEDs converted only 0.76% of electrons into photons. Robert F. Service, Science | AAAS, "LEDs created from wonder material could revolutionize lighting and displays," 4 June 2019 The theoretical maximum efficiency of perovskites tops 40%. Time, "Inside the New Technology That Could Transform the Solar Power Industry," 4 June 2018 Lunt says future systems that yoke UV-capturing perovskites to infrared-capturing organics could reach efficiencies of 20%, while still being nearly entirely transparent. Robert F. Service, Science | AAAS, "Skyscrapers could soon generate their own power, thanks to see-through solar cells," 28 June 2018 Meanwhile, a new class of opaque solar cell materials, called perovskites, are closing in on silicon with top efficiencies of 22%. Robert F. Service, Science | AAAS, "Skyscrapers could soon generate their own power, thanks to see-through solar cells," 28 June 2018 Not only are the perovskites cheaper than silicon, they can also be tuned to absorb specific frequencies of light by tweaking their chemical recipe. Robert F. Service, Science | AAAS, "Skyscrapers could soon generate their own power, thanks to see-through solar cells," 28 June 2018 Ultimately, perovskites may not be a solution that transforms solar energy. Time, "Inside the New Technology That Could Transform the Solar Power Industry," 4 June 2018 Even so, enough scientists were intrigued by the possibilities of perovskite to investigate further. Scientific American, "The Perovskite Boom," 13 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'perovskite.' 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 perovskite

1840, in the meaning defined above

History and Etymology for perovskite

German Perowskit, from Count L. A. Perovskiĭ †1856 Russian statesman

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Last Updated

16 Jul 2019

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The first known use of perovskite was in 1840

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