intrinsic germanium

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• Intrinsic semiconductor — An intrinsic semiconductor, also called an undoped semiconductor or i type semiconductor, is a pure semiconductor without any significant dopant species present. The number of charge carriers is therefore determined by the properties of the… …   Wikipedia

• radiation measurement — ▪ technology Introduction       technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement.       The term ionizing radiation refers to those… …   Universalium

• spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

• semiconductor — /sem ee keuhn duk teuhr, sem uy /, n. 1. a substance, as silicon or germanium, with electrical conductivity intermediate between that of an insulator and a conductor: a basic component of various kinds of electronic circuit element (semiconductor …   Universalium

• Diode — Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left) …   Wikipedia

• semiconductor device — ▪ electronics Introduction       electronic circuit component made from a material that is neither a good conductor nor a good insulator (hence semiconductor). Such devices have found wide applications because of their compactness, reliability,… …   Universalium

• Neutron activation analysis — Science with Neutrons Foundations Neutron temperature Flux · Radiation  …   Wikipedia

• Alloy-junction transistor — The germanium alloy junction transistor, or alloy transistor, was an early type of bipolar junction transistor, developed at General Electric and RCA in 1951 as an improvement over the earlier grown junction transistor. The usual construction of… …   Wikipedia

• N-type semiconductor — N type semiconductors are a type of extrinsic semiconductor where the dopant atoms are capable of providing extra conduction electrons to the host material (e.g. phosphorus in silicon). This creates an excess of negative (n type) electron charge… …   Wikipedia

• Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …   Wikipedia

• Organogermanium compound — Organogermanium compounds are organometallic compounds containing a carbon to germanium or hydrogen to germanium chemical bond. Organogermanium chemistry is the corresponding chemical science.[1] Germanium shares group 14 in the periodic table… …   Wikipedia