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Chemical element with atomic number 32 (Ge)
Germanium is a chemical element; it has the symbol Ge and atomic number 32. It is lustrous, hard-brittle, grayish-white and similar in appearance to silicon
Germanium
Index of chemical compounds with the same name
Germanium sulfide may refer to: Germanium(IV) sulfide GeS2, also known as Germanium disulfide Germanium(II) sulfide GeS, a semiconductor also known as
Germanium_sulfide
Chemical compound
Germanium dioxide, also called germanium(IV) oxide, germania, and salt of germanium, is an inorganic compound with the chemical formula GeO2. It is the
Germanium_dioxide
Index of chemical compounds with the same name
Germanium oxide may refer to: Germanium dioxide, GeO2, the best known and most commonly encountered oxide of germanium containing germanium(IV) Germanium
Germanium_oxide
Chemical compound
SiGe (/ˈsɪɡiː/ or /ˈsaɪdʒiː/), or silicon–germanium, is an alloy with any molar ratio of silicon and germanium, i.e. with a molecular formula of the form
Silicon–germanium
Two-terminal electronic component
silicon, but other semiconducting materials such as gallium arsenide and germanium are also used. The obsolete thermionic diode is a vacuum tube with two
Diode
Intermetallic chemical compound
Niobium-germanium (Nb3Ge) is an intermetallic chemical compound of niobium (Nb) and germanium (Ge). It has A15 phase structure. It is a superconductor
Niobium–germanium
Device measuring ionizing radiation
semiconductor detector is a device that uses a semiconductor (usually silicon or germanium) to measure the effect of incident charged particles or photons. Semiconductor
Semiconductor_detector
Periodic table group
group is a periodic table group consisting of carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), and flerovium (Fl). It lies within the p-block
Carbon_group
Germanium (32Ge) has five naturally occurring isotopes, 70Ge, 72Ge, 73Ge, 74Ge, and 76Ge. Of these, 76Ge is very slightly radioactive, undergoing double
Isotopes_of_germanium
Index of chemical compounds with the same name
Germanium bromide may refer to: Germanium(II) bromide (germanium dibromide), GeBr2 Germanium(IV) bromide (germanium tetrabromide), GeBr4 This set index
Germanium_bromide
Any chemical compound having at least one germanium atom in its structure
Germanium compounds are chemical compounds formed by the element germanium (Ge). Germanium is insoluble in dilute acids and alkalis but dissolves slowly
Germanium_compounds
Index of chemical compounds with the same name
Germanium fluoride is a chemical compound of germanium and fluorine which exists in the following forms: Germanium difluoride, GeF2, a white ionic solid
Germanium_fluoride
Chemical compound
Germanium monoxide (chemical formula GeO) is a chemical compound of germanium and oxygen. It can be prepared as a yellow sublimate at 1000 °C by reacting
Germanium_monoxide
Chemical compound
Germanium tetrachloride is a colourless, fuming liquid with a peculiar, acidic odour. It is used as an intermediate in the production of purified germanium
Germanium_tetrachloride
Index of chemical compounds with the same name
Germanium chloride may refer to: Germanium dichloride, germanium(II) chloride, GeCl2 Germanium tetrachloride, germanium(IV) chloride, GeCl4 This set index
Germanium_chloride
Yunnan Chihong Zinc and Germanium Company Limited (SSE: 600497) is the state-owned enterprise engaged in the processing, extracting, and prospecting and
Chihong_Zinc_and_Germanium
Chemical compound
Germanium tetrafluoride (GeF4) is a chemical compound of germanium and fluorine. It is a colorless gas. Germanium tetrafluoride is formed by treating
Germanium_tetrafluoride
Germanium production methods
Chlorine-free germanium processing are methods of germanium activation to form useful germanium precursors in a more energy efficient and environmentally
Chlorine-free germanium processing
Chlorine-free_germanium_processing
Chemical compound
Germanium(IV) nitride is an inorganic compound with the chemical formula Ge3N4. It can be produced through the reaction of germanium and ammonia: 3 Ge
Germanium_nitride
Chemical compound
Germanium disulfide or Germanium(IV) sulfide is the inorganic compound with the formula GeS2. It is a white high-melting crystalline solid. The compound
Germanium_disulfide
Solid-state electrically operated switch also used as an amplifier
devices. Most transistors are made from very pure silicon, and some from germanium, but certain other semiconductor materials are sometimes used. A transistor
Transistor
Optically active defect in diamonds
The germanium-vacancy center (Ge-V) is an optically active defect in diamond, which can be created by doping germanium into diamond during its growth or
Germanium-vacancy center in diamond
Germanium-vacancy_center_in_diamond
Index of chemical compounds with the same name
Germanium selenide may refer to: Germanium monoselenide Germanium diselenide This set index article lists chemical compounds articles associated with
Germanium_selenide
Chemical compound
Germanium dibromide is a bromide of germanium with the chemical formula GeBr2. Germanium dibromide can be obtained by reducing germanium tetrabromide with
Germanium_dibromide
Type of bipolar junction transistor
The germanium alloy-junction transistor, or alloy transistor, was an early type of bipolar junction transistor, developed at General Electric and RCA
Alloy-junction_transistor
Chemical compound
Germanium(IV) iodide is an inorganic compound with the chemical formula GeI4. Germanium(IV) iodide can be obtained by the reaction of germanium and iodine
Germanium(IV)_iodide
Chemical compound
Germanium difluoride (GeF2) is a chemical compound of germanium and fluorine. It is a white solid with a melting point of 110 °C, and can be produced
Germanium_difluoride
Chemical compound
Germanium dichloride is a chemical compound of germanium and chlorine with the formula GeCl2. It is a yellow solid. Germanium dichloride is an example
Germanium_dichloride
Material of moderate electrical conductivity
most modern electronics. Some examples of semiconductors are silicon, germanium, gallium arsenide, and elements near the so-called "metalloid staircase"
Semiconductor
Chemical compound
Germanium telluride (GeTe) is a chemical compound of germanium and tellurium and is a component of chalcogenide glass. It shows semimetallic conduction
Germanium_telluride
Brand of tarnish-resistant silver alloys
traditional sterling silver (92.5% silver + 7.5% copper) with the metalloid germanium. Argentium 935, Argentium 940 and Argentium 960 alloys exceed the standard
Argentium_sterling_silver
Group 14 chemical compounds
Germanium(II) hydrides, also called germylene hydrides, are a class of Group 14 compounds consisting of low-valent germanium and a terminal hydride. They
Germanium(II)_hydrides
Chemical compound
Germanium(II) iodide is an iodide of germanium, with the chemical formula of GeI2. Germanium(II) iodide can be produced by reacting germanium(IV) iodide
Germanium(II)_iodide
Chemical compound
formula GeH4, and the germanium analogue of methane. It is the simplest germanium hydride and one of the most useful compounds of germanium. Like the related
Germane
Neutrinoless double beta decay experiment
The Germanium Detector Array (or GERDA) experiment was searching for neutrinoless double beta decay (0νββ) in Ge-76 at the underground Laboratori Nazionali
Germanium_Detector_Array
First successful type of transistor, developed in 1947
experiment, carried out on December 16, 1947, consisted of a block of germanium, a semiconductor, with two very closely spaced gold contacts held against
Point-contact_transistor
European Union legislation
Fluorspar Gallium Gallium Gallium Gallium Gallium Germanium Germanium Germanium Germanium Germanium Graphite Graphite Graphite Graphite Graphite . . Hafnium
Critical_Raw_Materials_Act
Chemical compound
Germanium tetrabromide is the inorganic compound with the formula GeBr4. It is a colorless solid that melts near room temperature. It can be formed by
Germanium_tetrabromide
Chemical alloy
Germanium-tin is an alloy of the elements germanium and tin, both located in group 14 of the periodic table. It is only thermodynamically stable under
Germanium-tin
Chemical compound
Germanium dichloride dioxane is a chemical compound with the formula GeCl2(C4H8O2), where C4H8O2 is 1,4-dioxane. It is a white solid. The compound is
Germanium_dichloride_dioxane
Chemical element with atomic number 14 (Si)
is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, lead, and flerovium are below it. It is relatively unreactive. Silicon
Silicon
Chemical compound
Rubidium germanium iodide is a ternary halide of rubidium and germanium, with the chemical formula RbGeI3. It is being considered as a potential counterpart
Rubidium_germanium_iodide
Chemical element with metallic and nonmetallic properties
literature. The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony and tellurium. Five elements are less frequently so
Metalloid
Device to extract gallium-68 from germanium-68
A germanium-68/gallium-68 generator is a device used to extract the positron-emitting isotope 68Ga of gallium from a source of decaying germanium-68.
Gallium-68_generator
Organic Chemistry involving Germanium
is the science of chemical species containing one or more C–Ge bonds. Germanium shares group 14 in the periodic table with carbon, silicon, tin and lead
Organogermanium_chemistry
Chemical compound
Germanium monosulfide or Germanium(II) sulfide is the chemical compound with the formula GeS. Germanium sulfide is a red-brown powder or black crystals
Germanium_monosulfide
Russian chemist (1834–1907)
predict the properties of three elements that were yet to be discovered (germanium, gallium, and scandium). The synthetic element mendelevium is named in
Dmitri_Mendeleev
Chemical compound
Germanium diselenide is an inorganic compound, with the chemical formula of GeSe2. Germanium diselenide is prepared by reacting stoichiometric amounts
Germanium_diselenide
Tabular arrangement of the chemical elements
German chemist Clemens Winkler, who named it germanium. The properties of gallium, scandium, and germanium matched what Mendeleev had predicted. In 1889
Periodic_table
Method for determining the band gap of a material
absorption spectrum of amorphous germanium resembles the spectrum of the indirect transitions in crystalline germanium (plus a tail due to localized states
Tauc_plot
Chemical compound
an oxyanion of germanium. In the naming of inorganic compounds it is a suffix that indicates a polyatomic anion with a central germanium atom, for example
Germanate
Uranium rhodium germanium (URhGe) is the first discovered metal that becomes superconducting in the presence of an extremely strong electromagnetic field
Uranium_rhodium_germanium
Neutrinoless double beta decay experiment
The Large Enriched Germanium Experiment for Neutrinoless ββ Decay (LEGEND) is a physics experiment located at the Laboratori Nazionali del Gran Sasso
Large Enriched Germanium Experiment for Neutrinoless BB Decay
Large_Enriched_Germanium_Experiment_for_Neutrinoless_BB_Decay
Solar power cell with multiple band gaps from different materials
arsenide (GaAs) or indium gallium arsenide (InGaAs) and germanium (Ge) can be fabricated on germanium wafers. Early cells used straight gallium arsenide in
Multi-junction_solar_cell
Ge(II) dicationic complexes refer to coordination compounds of germanium with a +2 formal oxidation state, and a +2 charge on the overall complex. In
Germanium(II) dicationic complexes
Germanium(II)_dicationic_complexes
Transistor that uses both electrons and holes as charge carriers
circuits. The germanium transistor was more common in the 1950s and 1960s but has a greater tendency to exhibit thermal runaway. Since germanium p-n junctions
Bipolar_junction_transistor
semi-insulating GaAs wafers have a density on the order of 105 cm−2. High-purity Germanium detectors require the Ge crystals to be grown with a controlled range
Etch_pit_density
Country in Central Africa
industrial and gem-quality diamonds, gold, silver, zinc, manganese, tin, germanium, uranium, radium, bauxite, iron ore, and coal are all found in plentiful
Democratic Republic of the Congo
Democratic_Republic_of_the_Congo
Israeli fast charging battery developer
batteries for mobile phones that fully charge in 30 seconds by 2016; germanium-based mobile phone batteries by 2019; electric car and aerial drone batteries
StoreDot
Inorganic chemical compound of bismuth, germanium and oxygen
Bismuth germanium oxide or bismuth germanate is an inorganic chemical compound of bismuth, germanium and oxygen. Most commonly the term refers to the compound
Bismuth_germanate
Topics referred to by the same term
following 31 and preceding 33 One of the years 32 BC, AD 32, 1932, 2032 Germanium, a metalloid in the periodic table 32 Pomona, an asteroid in the asteroid
32
Nanoclusters
Table of the crystal structures of germanium MPCs. Formula References [Ge9{Si(SiMe3)3}3]− Schnepf, Andreas (2003). "[Ge9{Si(SiMe3)3}3]−: A Soluble Polyhedral
Monolayer-protected cluster molecules
Monolayer-protected_cluster_molecules
Combination medication
Germanium (68Ge) chloride/gallium (68Ga) chloride is a radionuclide generator. It is a combination of germanium (68 Ge) chloride and gallium (68 Ga) chloride
Germanium (68Ge) chloride/gallium (68Ga) chloride
Germanium_(68Ge)_chloride/gallium_(68Ga)_chloride
Space observatory to study gamma rays
astrophysical sources, and its germanium detectors provide excellent energy resolution for emission line measurements. The germanium detectors have an instantaneous
Compton Spectrometer and Imager
Compton_Spectrometer_and_Imager
Guitar Effect Pedal
Early Fuzz Faces used NKT275 germanium transistors, which created a fuller tone with less gain and less noise. These germanium versions are prized for their
Fuzz_Face
Chemical compound of hydrogen and oxygen
section Other substances with this property include bismuth, silicon, germanium and gallium. De Leon N. "Naming molecular compounds - Chemistry 101 Class
Water
Chemical element with atomic number 31 (Ga)
state with a short list of other materials that includes water, silicon, germanium, bismuth, lead, and plutonium. In gallium, this anomalous behaviour is
Gallium
NASA scientific research satellites
are made from fused silica glass while the remaining 4 are made from germanium to obtain measurements in the infrared for experimental studies of reflectivity
LAGEOS
Chemical compound
tetraorganogermane. Tetramethylgermanium can be synthesized by reaction between germanium tetrachloride and a Grignard reagent methylmagnesium chloride in diethyl
Tetramethylgermanium
Germanium iodides are inorganic compounds with the formula GeIx. Two such compounds exist: germanium(II) iodide, GeI2, and germanium(IV) iodide GeI4. Germanium(II)
Germanium_iodides
Polish-American physicist (1933–2026)
The title of his doctoral thesis was "Faraday Effect in Silicon and Germanium". After earning his Ph.D. in experimental solid-state physics, Furdyna
Jacek_Furdyna
Semiconductor that has been doped
one another. Currently, most semiconductor diodes use doped silicon or germanium. Transistors (devices that enable current switching) also make use of
Extrinsic_semiconductor
stable one generally decay by positron emission or electron capture to germanium isotopes, while those heavier beta decay to selenium isotopes. A notable
Isotopes_of_arsenic
Programmable machine that processes data
Semiconductor, it was made of silicon, whereas Kilby's chip was made of germanium. Noyce's monolithic IC was fabricated using the planar process, developed
Computer
Germanium-antimony-tellurium material
GeSbTe (germanium-antimony-tellurium or GST) is a phase-change material from the group of chalcogenide glasses used in rewritable optical discs and phase-change
GeSbTe
Type of battery
electrodes, which improves the capacity of the battery. Some designs (silicon, germanium and transition metal oxides), variations of the lithium-ion battery have
Nanowire_battery
Type of crystal structure
structure, including α-tin, the semiconductors silicon and germanium, and silicon–germanium alloys in any proportion. There are also crystals, such as
Diamond_cubic
pure germanium "crystal" mixer diodes, used in radar units as a frequency mixer element in microwave radar receivers. A parallel project on germanium diodes
History_of_the_transistor
German chemist who discovered germanium (1838–1904)
1838 – October 8, 1904) was a German chemist who discovered the element germanium in 1886, solidifying Dmitri Mendeleev's theory of periodicity. Winkler
Clemens_Winkler
insulator (SSDOI) is a procedure developed by IBM which removes the silicon germanium layer in the strained silicon process leaving the strained silicon directly
Strained silicon directly on insulator
Strained_silicon_directly_on_insulator
American inventor (1907–2003)
a method of applying the Czochralski method to produce extremely pure germanium single crystals used in making greatly improved transistors. He, together
Gordon_Kidd_Teal
Zinc-iron sulfide mineral
mineral. In addition to zinc, sphalerite is an ore of cadmium, gallium, germanium, and indium. Miners have been known to refer to sphalerite as zinc blende
Sphalerite
Elements predicted but not found in 1869
down from the known element of the same group in his table. For example, germanium was called eka-silicon until its discovery in 1886, and rhenium was called
Mendeleev's predicted elements
Mendeleev's_predicted_elements
Fourth row in the periodic table of chemical elements
tin. Gallium can also be found in semiconductors. Germanium (Ge) is an element in group 14. Germanium, like silicon above it, is an important semiconductor
Period_4_element
grown junction silicon NPN transistors, silicon diodes, germanium diodes, silicon/germanium micro-diodes, silicon references, silicon regulators, silicon
Transitron Electronic Corporation
Transitron_Electronic_Corporation
Intentional introduction of impurities into an intrinsic semiconductor
amounts of solid elements from the nitrogen column of the periodic table to germanium to produce rectifying devices. The demands of his work on radar prevented
Doping_(semiconductor)
Topics referred to by the same term
(disambiguation) Germen (disambiguation) Germane, a simple chemical compound of germanium and hydrogen This disambiguation page lists articles associated with the
German
Quantitative study of the energy spectra of gamma-ray sources
materials include sodium iodide (NaI) scintillation counters, high-purity germanium detectors such as Bismuth germanate, and more recently, GAGG:Ce. To accurately
Gamma_spectroscopy
American semiconductor scientist (1917 to 1982)
devices to replace vacuum tubes. The early efforts used germanium. They made high back-voltage germanium rectifiers in 1945. Pfann devised one of the first
William_Gardner_Pfann
Situation in which the quantity of a radioactive isotope remains constant
parent isotope) is equal to its decay rate. An example of this is the germanium-68/gallium-68 generator commonly used for the preparation of gallium-68
Secular_equilibrium
Multinational materials technology company
the manufacture of specialised products from precious metals, cobalt, germanium, zinc, and other metals. The company has been a component of Belgium's
Umicore
Type of gamma-ray detector
a gamma-ray detector that consists of four coaxial N-type high-purity germanium (Ge) crystals, each machined to shape and mounted in a common cryostat
Clover_(detector)
Chemical compound with hydrogen and carbon group atoms
atoms and group 14 atoms (the elements of group 14 are carbon, silicon, germanium, tin, lead and flerovium). The tetrahydride series has the chemical formula
Group_14_hydride
Chemical element with atomic number 15 (P)
Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium
Phosphorus
substrate of silicon–germanium (SiGe). As the atoms in the silicon layer align with the atoms of the underlying silicon germanium layer (which are arranged
Strained_silicon
Chemical compound
deposition of germanium which is in a tetrahedral shape. Clemens Winkler first reported the compound in 1887 from diethylzinc and germanium tetrachloride
Tetraethylgermanium
Direct conversion process from heat to electricity via photons
TPV most research has focused on gallium antimonide (GaSb), although germanium (Ge) is also suitable. Another problem with lower-temperature sources
Thermophotovoltaic energy conversion
Thermophotovoltaic_energy_conversion
Chemical element with atomic number 49 (In)
bipolar junction transistors with germanium: when soldered at low temperature, indium does not stress the germanium. Indium wire is used as a vacuum seal
Indium
Particle research project
the Heidelberg–Moscow and IGEX collaborations, which used high-purity germanium (HPGe) detectors to study neutrinoless double-beta decay. The first stage
MAJORANA
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