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  2. Zinc selenide - Wikipedia

    en.wikipedia.org/wiki/Zinc_selenide

    Zinc selenide is the inorganic compound with the formula ZnSe. It is a lemon-yellow solid although most samples have a duller color due to the effects of oxidation. It is an intrinsic semiconductor with a band gap of about 2.70 eV at 25 °C (77 °F), equivalent to a wavelength of 459 nm.

  3. Light-emitting diode - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode

    Zinc selenide (ZnSe) Indium gallium nitride (InGaN) Silicon carbide (SiC) as substrate Silicon (Si) as substrate — (under development) Violet: 400 < λ < 450 2.76 < ΔV < 4.0 Indium gallium nitride (InGaN) Purple: multiple types 2.48 < ΔV < 3.7 Dual blue/red LEDs, blue with red phosphor, or white with purple plastic Ultraviolet: λ < 400 3.1 ...

  4. Optical manufacturing and testing - Wikipedia

    en.wikipedia.org/wiki/Optical_manufacturing_and...

    Calcium fluoride (CaF2) can be used as an optical material, although it is easily fractured and scratched. [ 7 ] Materials for infrared optical components include zinc selenide (ZnSe), zinc sulfide (ZnS), and gallium arsenide (GaAs).

  5. List of semiconductor materials - Wikipedia

    en.wikipedia.org/.../List_of_semiconductor_materials

    A compound semiconductor is a semiconductor compound composed of chemical elements of at least two different species. These semiconductors form for example in periodic table groups 13–15 (old groups III–V), for example of elements from the Boron group (old group III, boron, aluminium, gallium, indium) and from group 15 (old group V, nitrogen, phosphorus, arsenic, antimony, bismuth).

  6. Light-emitting diode physics - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode_physics

    Zinc selenide (ZnSe) Indium gallium nitride (InGaN) Synthetic sapphire, Silicon carbide (SiC) as substrate with or without epitaxy, Silicon (Si) as substrate—under development (epitaxy on silicon is hard to control) Violet: 400 < λ < 450: 2.76 < ΔV < 4.0: Indium gallium nitride (InGaN) Ultraviolet: λ < 400: 3 < ΔV < 4.1: Indium gallium ...

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    Whether you go with a timeless or more quirky style, Kate Spade handbags are made from high-quality materials, including real leather and durable metal hardware. So if you’re in the market for a ...

  8. Selenium compounds - Wikipedia

    en.wikipedia.org/wiki/Selenium_compounds

    The selenide dianion Se 2− forms a variety of compounds, including the minerals from which selenium is obtained commercially. Illustrative selenides include mercury selenide (HgSe), lead selenide (PbSe), zinc selenide (ZnSe), and copper indium gallium diselenide (Cu(Ga,In)Se 2). These materials are semiconductors.

  9. The World Bank Group's Uncounted - The Huffington Post

    projects.huffingtonpost.com/worldbank-evicted...

    The plan was to build the plant along the Gulf of Kutch, an inlet of the Arabian Sea that provides a living for fishing clans that harvest the coast’s rich marine life.

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