surface impurity concentration
71N-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… …
72Rainwater tank — A rainwater tank (sometimes called rain barrels , in North America or a water butt in the UK) is a water tank which is used to collect and store rain water runoff, typically from rooftops via rain gutters. Rainwater tanks are devices for… …
73Gossage — is a family name of soapmakers and alkali manufacturers. Their company eventually became part of the Unilever group. During World War II, all soap brands were abolished by British government decree in 1942, in favour of a generic soap. When… …
74The 36 tattvas — In Kaśmir Śaivism, the 36 tattvas describe the Absolute, its internal aspects and the creation including living beings, down to the physical reality. The addition of 11 supplemental tattvas compared to the IAST|Sāṃkhya allows for a richer, fuller …
75Mineralizer — The purpose of a mineralizer is to facilitate the transport of insoluble “nutrient” to a seed crystal by means of a reversible chemical reaction. Overtime, the seed crystal accumulates the material that was once in the nutrient and grows.… …
76Dopant — This article is about elemental impurities. For the fictional characters in Kamen Rider W, see Dopant (Kamen Rider). A dopant, also called a doping agent, is a trace impurity element that is inserted into a substance (in very low concentrations)… …
77Heparin — Systematic (IUPAC) name see Hep …
78Plutonium — (pronEng|pluːˈtoʊniəm, symbol Pu, atomic number 94) is a rare radioactive, metallic chemical element. The most significant isotope of plutonium is 239Pu, with a half life of 24,100 years; this isotope is fissile and is used in most modern nuclear …
79List of MÄR characters — MÄR characters from the anime. Going clockwise: Ginta and Babbo (top right); Alan (upper right corner); Jack (right); Dorothy (lower right corner); Belle on top of Edward (bottom); Snow (lower left corner); Nanashi (left, lower side); Alviss… …
80Diamond type — is a method of scientifically classifying diamonds by the level and type of their chemical impurities. Diamonds are separated into four types: Type Ia, Type Ib, Type IIa, and Type IIb. The impurities measured are at the atomic …
