Construct · 1 fields · 3 citations

perovskite: a standalone construct

One name. One construct. A landmark on the map.

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perovskite1 CONSTRUCTPerovskiteROSE · ABX3 STRUCTURE

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Mineralogy and materials science

The mineral CaTiO3 and the ABX3 crystal-structure family named after it

Gustav Rose named perovskite in 1839 for the mineral calcium titanate (CaTiO3) he identified in the Ural Mountains, honoring the Russian mineralogist Lev Perovski. Crystallographers later generalized the name to a whole family of compounds that share the same atomic arrangement, written ABX3, in which a network of corner-sharing BX6 octahedra encloses a larger A cation; Victor Goldschmidt's 1926 tolerance factor gave a simple geometric rule for which combinations of ions will pack into this structure. Because the A, B, and X positions accept a very wide range of elements, the perovskite structure hosts thousands of distinct materials whose properties span insulators, ferroelectrics, superconductors, and magnets, which is why it recurs across mineralogy, solid-state physics, and chemistry. Interest widened sharply after Akihiro Kojima and colleagues reported in 2009 that a halide perovskite could act as a light absorber in a solar cell, opening the field of perovskite photovoltaics. The distinctive meaning of the term is therefore structural rather than compositional: perovskite names a shared ABX3 crystal architecture, not a single substance.[1][2][3]

Unit
A crystal-structure type (ABX3) and the mineral that names it, identified by its atomic arrangement rather than by a single chemical formula
Recovery means
Not applicable
Measured by
Identified by X-ray or neutron diffraction that resolves the ABX3 arrangement of corner-sharing octahedra, with the Goldschmidt tolerance factor used to gauge structural stability

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Nearby constructs

crystal4 fields · 4 citationsjingle · one word, four constructsarchitecture3 fields · 4 citationsjingle · one word, three constructsarrangement3 fields · 6 citationsjingle · one word, three constructs

References

  1. Rose, G. (1839). De novis quibusdam fossilibus quae in montibus Uraliis inveniuntur. Berlin.
  2. Goldschmidt, V. M. (1926). Die Gesetze der Krystallochemie. Naturwissenschaften, 14(21), 477–485. https://doi.org/10.1007/BF01507527
  3. Kojima, A., Teshima, K., Shirai, Y., & Miyasaka, T. (2009). Organometal halide perovskites as visible-light sensitizers for photovoltaic cells. Journal of the American Chemical Society, 131(17), 6050–6051. https://doi.org/10.1021/ja809598r

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