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  2. Silicon–germanium - Wikipedia

    en.wikipedia.org/wiki/Silicongermanium

    Silicongermanium. SiGe (/ ˈsɪɡiː / or / ˈsaɪdʒiː /), or silicongermanium, is an alloy with any molar ratio of silicon and germanium, i.e. with a molecular formula of the form Si 1−x Ge x. It is commonly used as a semiconductor material in integrated circuits (ICs) for heterojunction bipolar transistors or as a strain -inducing ...

  3. Germanium - Wikipedia

    en.wikipedia.org/wiki/Germanium

    Germanium is a chemical element; it has symbol Ge and atomic number 32. It is lustrous, hard-brittle, grayish-white and similar in appearance to silicon. It is a metalloid (more rarely considered a metal) in the carbon group that is chemically similar to its group neighbors silicon and tin. Like silicon, germanium naturally reacts and forms ...

  4. Silicon on insulator - Wikipedia

    en.wikipedia.org/wiki/Silicon_on_insulator

    NanoCleave is a technology developed by Silicon Genesis Corporation that separates the silicon via stress at the interface of silicon and silicon-germanium alloy. [18] ELTRAN is a technology developed by Canon which is based on porous silicon and water cut. [19] Seed methods [20] - wherein the topmost Si layer is grown directly on the insulator ...

  5. Czochralski method - Wikipedia

    en.wikipedia.org/wiki/Czochralski_method

    v. t. e. The Czochralski method, also Czochralski technique or Czochralski process, is a method of crystal growth used to obtain single crystals of semiconductors (e.g. silicon, germanium and gallium arsenide), metals (e.g. palladium, platinum, silver, gold), salts and synthetic gemstones. The method is named after Polish scientist Jan ...

  6. Semiconductor device - Wikipedia

    en.wikipedia.org/wiki/Semiconductor_device

    Semiconductor device. A semiconductor device is an electronic component that relies on the electronic properties of a semiconductor material (primarily silicon, germanium, and gallium arsenide, as well as organic semiconductors) for its function. Its conductivity lies between conductors and insulators. Semiconductor devices have replaced vacuum ...

  7. Nanowire battery - Wikipedia

    en.wikipedia.org/wiki/Nanowire_battery

    Nanowire battery. A nanowire battery uses nanowires to increase the surface area of one or both of its electrodes, which improves the capacity of the battery. Some designs (silicon, germanium and transition metal oxides), variations of the lithium-ion battery have been announced, although none are commercially available.

  8. Silicon nanotube - Wikipedia

    en.wikipedia.org/wiki/Silicon_nanotube

    [9] [10] A silicon nanotube charged with hydrogen delivers energy and in the process leaves residual water, ethanol, silicon and sand. However, as hydrogen production requires considerable energy, this is only a proposed method of storing energy, not producing it. Silicon nanotubes and silicon nanowires can be used in lithium-ion batteries ...

  9. Agricultural technology - Wikipedia

    en.wikipedia.org/wiki/Agricultural_technology

    e. Agricultural technology or agrotechnology (abbreviated agtech, agritech, AgriTech, or agrotech) is the use of technology in agriculture, horticulture, and aquaculture with the aim of improving yield, efficiency, and profitability. Agricultural technology can be products, services or applications derived from agriculture that improve various ...