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 The research built on the fact that perovskite, a conductive and light-sensitive material used in solar cells, can be used to create extremely thin nanowires several thousandths of a millimeter in length. Sophie Bushwick, Scientific American, "New Artificial Eye Mimics a Retina’s Natural Curve," 20 May 2020 Solar cells are made from semiconductors, materials like silicon or perovskite that can either conduct electricity or insulate against it, depending on the environment. Daniel Oberhaus, Wired, "Fast Nanoscale ‘Movies’ Shed Light on a Solar Cell Mystery," 15 Apr. 2020 Until recently, little was known about how and where deep traps formed in perovskite cells. Daniel Oberhaus, Wired, "Fast Nanoscale ‘Movies’ Shed Light on a Solar Cell Mystery," 15 Apr. 2020 But scientists weren't sure what to do with them until 2009, when a Japanese researcher found that perovskite, like silicon, could absorb photons of sunlight and turn them into electricity. John Fialka, Scientific American, "Lead-Trapping Coating Could Make Cheaper, More Efficient Solar Cell Viable," 24 Feb. 2020 Researchers are also making progress on solar cells made of perovskite, or materials with a unique crystal structure that allows them to be much more efficient than the current generation silicon solar cells. Jason Daley, Smithsonian, "Tiny, Sunlight-Following Polymer ‘Sunflowers’ Could Boost the Efficiency of Solar Panels," 7 Nov. 2019 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

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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The first known use of perovskite was in 1840

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Cite this Entry

“Perovskite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/perovskite. Accessed 11 Aug. 2020.

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