Dysprosium(III) telluride

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Dysprosium(III) telluride
Identifiers
3D model (JSmol)
ECHA InfoCard 100.032.068 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 235-288-9
PubChem CID
  • InChI=1S/2Dy.3Te
    Key: ISSYQCZLWJTXOM-UHFFFAOYSA-N
  • [Te].[Te].[Te].[Dy].[Dy]
Properties
Dy2Te3
Molar mass 707.80
Melting point around 1550 °C
Structure
Sc2S3 [1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Dysprosium(III) telluride is an inorganic compound, one of the tellurides of dysprosium, with the chemical formula Dy2Te3, where Dy is in the +3 oxidation state.

Contents

Preparation

Dysprosium(III) telluride can be obtained by reacting tellurium and dysprosium in a stoichiometric ratio: [1]

2 Dy + 3 Te → Dy2Te3

Properties

Dysprosium(III) telluride reacts with copper(II) telluride at high temperature to obtain phases such as DyCuTe2, DyCu5Te4, and Dy7Cu3Te12. [2] It and cadmium telluride can form CdDy2Te4 at high temperatures: [3]

Dy2Te3 + CdTe → CdDy2Te4

Related Research Articles

<span class="mw-page-title-main">Dysprosium</span> Chemical element with atomic number 66 (Dy)

Dysprosium is a chemical element; it has symbol Dy and atomic number 66. It is a rare-earth element in the lanthanide series with a metallic silver luster. Dysprosium is never found in nature as a free element, though, like other lanthanides, it is found in various minerals, such as xenotime. Naturally occurring dysprosium is composed of seven isotopes, the most abundant of which is 164Dy.

<span class="mw-page-title-main">Tellurium</span> Chemical element with atomic number 52 (Te)

Tellurium is a chemical element; it has symbol Te and atomic number 52. It is a brittle, mildly toxic, rare, silver-white metalloid. Tellurium is chemically related to selenium and sulfur, all three of which are chalcogens. It is occasionally found in its native form as elemental crystals. Tellurium is far more common in the Universe as a whole than on Earth. Its extreme rarity in the Earth's crust, comparable to that of platinum, is due partly to its formation of a volatile hydride that caused tellurium to be lost to space as a gas during the hot nebular formation of Earth.

<span class="mw-page-title-main">Cadmium sulfide</span> Chemical compound

Cadmium sulfide is the inorganic compound with the formula CdS. Cadmium sulfide is a yellow salt. It occurs in nature with two different crystal structures as the rare minerals greenockite and hawleyite, but is more prevalent as an impurity substituent in the similarly structured zinc ores sphalerite and wurtzite, which are the major economic sources of cadmium. As a compound that is easy to isolate and purify, it is the principal source of cadmium for all commercial applications. Its vivid yellow color led to its adoption as a pigment for the yellow paint "cadmium yellow" in the 18th century.

The telluride ion is the anion Te2− and its derivatives. It is analogous to the other chalcogenide anions, the lighter O2−, S2−, and Se2−, and the heavier Po2−.

<span class="mw-page-title-main">Cadmium telluride</span> Semiconductor chemical compound used in solar cells

Cadmium telluride (CdTe) is a stable crystalline compound formed from cadmium and tellurium. It is mainly used as the semiconducting material in cadmium telluride photovoltaics and an infrared optical window. It is usually sandwiched with cadmium sulfide to form a p–n junction solar PV cell.

<span class="mw-page-title-main">Mercury cadmium telluride</span> Alloy

Hg1−xCdxTe or mercury cadmium telluride is a chemical compound of cadmium telluride (CdTe) and mercury telluride (HgTe) with a tunable bandgap spanning the shortwave infrared to the very long wave infrared regions. The amount of cadmium (Cd) in the alloy can be chosen so as to tune the optical absorption of the material to the desired infrared wavelength. CdTe is a semiconductor with a bandgap of approximately 1.5 electronvolts (eV) at room temperature. HgTe is a semimetal, which means that its bandgap energy is zero. Mixing these two substances allows one to obtain any bandgap between 0 and 1.5 eV.

Cadmium zinc telluride, (CdZnTe) or CZT, is a compound of cadmium, zinc and tellurium or, more strictly speaking, an alloy of cadmium telluride and zinc telluride. A direct bandgap semiconductor, it is used in a variety of applications, including semiconductor radiation detectors, photorefractive gratings, electro-optic modulators, solar cells, and terahertz generation and detection. The band gap varies from approximately 1.4 to 2.2 eV, depending on composition.

<span class="mw-page-title-main">Infrared detector</span>

An infrared detector is a detector that reacts to infrared (IR) radiation. The two main types of detectors are thermal and photonic (photodetectors).

<span class="mw-page-title-main">Bismuth telluride</span> Chemical compound

Bismuth telluride is a gray powder that is a compound of bismuth and tellurium also known as bismuth(III) telluride. It is a semiconductor, which, when alloyed with antimony or selenium, is an efficient thermoelectric material for refrigeration or portable power generation. Bi2Te3 is a topological insulator, and thus exhibits thickness-dependent physical properties.

<span class="mw-page-title-main">Mercury telluride</span> Topologically insulating chemical compound

Mercury telluride (HgTe) is a binary chemical compound of mercury and tellurium. It is a semi-metal related to the II-VI group of semiconductor materials. Alternative names are mercuric telluride and mercury(II) telluride.

<span class="mw-page-title-main">Silver compounds</span> Chemical compounds containing silver

Silver is a relatively unreactive metal, although it can form several compounds. The common oxidation states of silver are (in order of commonness): +1 (the most stable state; for example, silver nitrate, AgNO3); +2 (highly oxidising; for example, silver(II) fluoride, AgF2); and even very rarely +3 (extreme oxidising; for example, potassium tetrafluoroargentate(III), KAgF4). The +3 state requires very strong oxidising agents to attain, such as fluorine or peroxodisulfate, and some silver(III) compounds react with atmospheric moisture and attack glass. Indeed, silver(III) fluoride is usually obtained by reacting silver or silver monofluoride with the strongest known oxidizing agent, krypton difluoride.

<span class="mw-page-title-main">Cadmium telluride photovoltaics</span> Type of solar power cell

Cadmium telluride (CdTe) photovoltaics is a photovoltaic (PV) technology based on the use of cadmium telluride in a thin semiconductor layer designed to absorb and convert sunlight into electricity. Cadmium telluride PV is the only thin film technology with lower costs than conventional solar cells made of crystalline silicon in multi-kilowatt systems.

<span class="mw-page-title-main">Copper indium gallium selenide solar cell</span>

A copper indium gallium selenide solar cell is a thin-film solar cell used to convert sunlight into electric power. It is manufactured by depositing a thin layer of copper indium gallium selenide solid solution on glass or plastic backing, along with electrodes on the front and back to collect current. Because the material has a high absorption coefficient and strongly absorbs sunlight, a much thinner film is required than of other semiconductor materials.

<span class="mw-page-title-main">Dysprosium acetylacetonate</span> Chemical compound

Dysprosium acetylacetonate is a chemical compound of dysprosium with formula Dy(C5H7O2)3(H2O)n.

<span class="mw-page-title-main">Dysprosium(III) hydroxide</span> Chemical compound

Dysprosium(III) hydroxide is an inorganic compound with the chemical formula Dy(OH)3.

Dysprosium(II) chloride (DyCl2), also known as dysprosium dichloride, is an ionic chemical compound of dysprosium and chlorine. This salt is a reduced compound, as the normal oxidation state of dysprosium in dysprosium compounds is +3.

<span class="mw-page-title-main">Dysprosium phosphide</span> Erbium compound

Dysprosium phosphide is an inorganic compound of dysprosium and phosphorus with the chemical formula DyP.

<span class="mw-page-title-main">Terbium compounds</span> Chemical compounds with at least one terbium atom

Terbium compounds are compounds formed by the lanthanide metal terbium (Tb). Terbium generally exhibits the +3 oxidation state in these compounds, such as in TbCl3, Tb(NO3)3 and Tb(CH3COO)3. Compounds with terbium in the +4 oxidation state are also known, such as TbO2 and BaTbF6. Terbium can also form compounds in the 0, +1 and +2 oxidation states.

<span class="mw-page-title-main">Dysprosium(III) bromide</span> Chemical compound

Dysprosium(III) bromide is an inorganic compound of bromine and dysprosium, with the chemical formula of DyBr3.

<span class="mw-page-title-main">Dysprosium(III) phosphate</span> Chemical compound

Dysprosium(III) phosphate is an inorganic compound with the chemical formula DyPO4.

References

  1. 1 2 Stefan Pokrzywnicki (Jul 1995). "Crystal field effects and magnetic properties of Dy2Te3". Journal of Alloys and Compounds. 225 (1–2): 163–165. doi:10.1016/0925-8388(94)07027-X. Archived from the original on 2018-06-10. Retrieved 2023-06-13.
  2. O.V. Marchuk, M. Daszkiewicz, L.D. Gulay, I.D. Olekseyuk, A. Pietraszko (May 2008). "Investigation of the R2Te3–M2Te–PbTe (R=Tb, Dy; M=Cu, Ag) systems at 770K". Journal of Alloys and Compounds. 455 (1–2): 186–190. doi:10.1016/j.jallcom.2007.01.065. Archived from the original on 2022-03-19. Retrieved 2023-06-13.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  3. Agaev, A. B.; Kulieva, U. A. Study of the cadmium telluride-dysprosium telluride system{{Country data {{{1}}} | flaglink/core | variant = | size = | name = | altlink = national rugby union team | altvar = rugby union}}. Azerbaidzhanskii Khimicheskii Zhurnal, 1984. 5: 61-63. ISSN   0005-2531