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(inorganic chemistry)
M2Se A binary compound of divalent selenium, such as Ag2Se, silver selenide.
(organic chemistry)
An organic compound containing divalent selenium, such as (C2H5)2Se, ethyl selenide.



any of the chemical compounds formed with selenium and metals. Selenides are analogues of sulfides and tellu-rides. They are obtained by, for example, the direct reactions of elements, the reactions of metals and corresponding oxides with H2Se, and the action of H2Se on solutions of metal salts. Normal selenides and polyselenides are known, the former being more stable. Selenides of the transition elements of groups IV-VIII and of the lanthanides and actinides form chemically stable, refractory (melting points 2000°–2500°C) compounds.

Selenides of metals belonging to the zinc subgroup are primarily used in resistors and photoelectric cells. Gallium selenides are used in laser technology and nonlinear optics. The selenides of transition metals can be used in high-temperature semiconductor devices; diselenides of molybdenum and tungsten serve as solid lubricants in the friction points of machines. Organic selenides are also known.


Chizhikov, D. M., and V. P. Schastlivyi. Selen i selenidy. Moscow, 1964.
Obolonchik, V. A. Selenidy. Moscow, 1972.
Medvedeva, Z. S. Khal’kogenidy elementov III B podgruppy periodicheskoi sistemy. Moscow, 1968.
References in periodicals archive ?
The team then restricted blood flow to one of the animals' hind limbs and observed a significant increase in selenide in the injured limb after blood flow was restored in comparison with the untreated hind limb.
In the early 2000s, a series of papers showed how quantum dots made with cadmium selenide could actually kill cells in a petri dish.
The efficiencies of dye-removal processes by using lead selenide nanoparticles and erbium doped lead selenide are 64% and 96% in 75 minutes, respectively.
The project will be located at the newly finished North Park offices of Saudi Aramco, and will see more than 120,000 copper indium selenide photovoltaic modules installed above the company's 4,500-space car park.
Cadmium selenide quantum dots can be used in a wide range of technological applications.
1, 2010 -(BUSINESS WIRE/Me NewsWire)-- MiaSole, the leading manufacturer of copper indium gallium selenide (CIGS) thin-film photovoltaic solar panels, today announced that the U.
University of Minnesota researchers may have found a way to boost solar cell efficiency by making them out of titanium dioxide and adding quantum dots made of lead selenide.
The company also offers polymer-based silver conductors for use on indium tin oxide (ITO) transparent conductor oxide layers for front side grid applications in thin film copper indium selenide (CIS), copper indium gallium selenide (CIGS) and amorphous silicon cell structures.
has introduced a line of new production-scale PV-Series Thermal Deposition Sources, enabling copper indium gallium selenide (CIGS) thin film solar manufacturers to more quickly transition from pilot to full scale solar cell production.
As part of the joint effort, STF has signed a three-year R&D agreement with RESI to develop the next generation of manufacturing equipment used to produce the Copper Indium Gallium Selenide (CIGS) thin-film PV modules.
cadmium selenide (CdSe), lead sulfide] with a diameter between 2- and 10-nm wide or 10 and 50 atoms, respectively, and have a range of useful electrical and optical properties that diverge in character from those of bulk material (Evident Technologies Inc.
Made of cadmium selenide (CdSe), the quantum dot is 3-6nm in diameter and excels in size distribution and photochemical stability.