perovskite


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pe·rovsk·ite

 (pə-rŏvz′kīt′, -rŏfs′-)
n.
1. A relatively rare yellow, brown, or black mineral, CaTiO3, sometimes containing rare-earth elements such as lanthanum.
2. Any of various oxides having a crystal structure similar to that of this mineral and that can be found in many superconducting ceramic materials and in electrodes in fuel cells.

[After Count Lev Alekseyevich Perovski (1792-1856), Russian mineralogist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

perovskite

(pɛˈrɒvskaɪt)
n
(Minerals) a yellow, brown, or greyish-black mineral form of calcium titanate with some rare-earth elements, which is used in certain high-temperature ceramic superconductors
[C19: named after Count Lev Alekseevich Perovski (1792–1856), Russian statesman]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

pe•rovsk•ite

(pəˈrɒf skaɪt, -ˈrɒv-)

n.
1. a rare titanate mineral, CaTiO3, forming yellow, brown, or black cubic crystals.
2. any of a family of superconducting ceramics with an atomic structure resembling that of this mineral.
[1835–45; < German Perowskit, after Count Lev Alekseevich Perovskiĭ (1792–1856), Russian statesman; see -ite1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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References in periodicals archive ?
Recent advances in solar cell technology use polycrystalline perovskite films as the active layer, with an increase to efficiency of as much as 24.2%.
Together with an international team of scientists, Steele discovered that by binding a thin film of perovskite solar cells to a sheet of glass, the cells can obtain and maintain their desired black state.
'That tool used to run at 1,000 feet a minute, at 90-something per cent efficiency.' EMC has demonstrated coating speeds around 100 feet per minute for perovskite and charge transport layers so far, although it isn't yet producing complete devices by roll-to-roll coating.
University of Surrey researchers are claiming that solar cells made of their tin-based perovskite, a material that is "more efficient at absorbing light than silicon and can be fabricated using solution processable inks, could "clear the runway" for solar energy to take off in the UK and help it meet its goal of being carbon-neutral by 2050.
"One day, as we were discussing perovskite solar cells, our colleague said, 'If we need coffee to boost our energy then what about perovskites?
"One day, as we were discussing perovskite solar cells, our colleague Rui Wang said, 'If we need coffee to boost our energy then what about perovskites?
The perovskite solar cells have high efficiency, low cost and a simple manufacturing process.
Perovskite, named for a mineral discovered in the Ural Mountains in the 1830s, refers to any of a number of compounds that share a particular crystal structure.
Although some other perovskite cells are more efficient, Zhou's invention is important because it makes the manufacturing process easier and cheaper.
Cobaltites REBa[Co.sub.2][O.sub.6-[delta]], where REis a rare earth metal, with the double perovskite structure have attracted great attention in the past decade due to their unique properties such as high oxide ion and electronic conductivity as well as very promising activity as cathodes in IT SOFCs [1-5].