Yanming Wang Nanowires (NWs) are considered as promising components of the next-generation optical and electronic devices. One commonly used method for NW synthesis is the chemical vapor deposition (CVD) by the vapor-liquid-solid (VLS) growth mechanism as shown below. Despite decades of study on the NW and single crystal whisker VLS growth, many fundamental aspects are still
The Whisker is a fuzz that packs a punch. Based on a Silicon-Germanium hybrid circuit, the Whisker was designed around a limited stock of NOS Soviet Germanium transistors. The Whisker takes you into classic fuzz territory and beyond while retaining the clarity and definition of YOUR sound.
'It is made from a coil of wire, a cardboard roll, has an aerial, a crystal (germanium diode), an earplug and a piece of wire called a 's whisker.' More example sentences 'It took two burly labourers to manhandle the huge walnut and Bakelite tuner onto the Lilo, but within hours the valves had warmed up, and the 's whisker proved ...
AF114 Germanium Transistors Parts Analysis by: Chris Greenwell/QSS Group, Inc. Summary Prepared by: Jay Brusse/QSS Group, Inc. ... – At least one device had been opened by the restorer of the radio revealing dense metal whisker growth from the inner walls of the TO package. These whiskers were suspected to be the source of
Germanium is a typical semiconductor, with a forbidden band width of 1.104 × 10-19 joule, or 0.69 electron volt (25° C); the specific electrical resistance of very pure germanium is 0.60 ohm-m (60 ohm-cm) at 25° C; the electron mobility is 3,900 cm 2 /volt-sec, and hole mobility is 1,900 cm 2 /volt-sec at 25° C (with an impurity content of ...
Germanium is a semiconductor. The pure element was commonly doped with arsenic, gallium or other elements and used as a transistor in thousands of electronic applications. Today, however, other semiconductors have replaced it. Germanium oxide has a high index of refraction and dispersion.
2 WHISKERGROWTH GrowthProcedure ThewhiskergrowthwasobtainedbythetemperaturereductionofC-e^ intoGel^andgermanium.Thereactionusedwas 2GeI 2 Ge+Gel ...
Looking for online definition of germanium or what germanium stands for? germanium is listed in the World's largest and most authoritative dictionary database of …
Whisker definition is - a hair of the beard. How to use whisker in a sentence.
Germanium steht im Periodensystem in der Serie der Halbmetalle, wird aber nach neuerer Definition als Halbleiter klassifiziert. Elementares Germanium ist sehr spröde und an der Luft bei Raumtemperatur sehr beständig. Erst bei starkem Glühen in einer Sauerstoff -Atmosphäre oxidiert es …
Le germanium est l'élément chimique de numéro atomique 32, de symbole Ge. Il appartient au groupe 14 du tableau périodique.. Ce métalloïde est semi-conducteur et cristallise avec la même structure que le diamant, tout comme le silicium.Il possède cinq isotopes naturels, dont le 76 Ge, qui est faiblement radioactif.Au moins 27 radioisotopes ont été synthétisés.
Dec 14, 2019· Germanium is a chemical element with atomic number 32 which means there are 32 protons and 32 electrons in the atomic structure. The chemical symbol for Germanium is Ge. Germanium is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon.
The first naturally occurring terrestrial example of vapor-liquid-solid (VLS) growth has been observed in condensates from gases released by burning coal in culm banks. Scanning electron microscopy, X-ray diffraction, and energy dispersive analysis indicate that the crystals consist of elongated rods (≈ 100 μm) of germanium sulfide capped by bulbs depleted in germanium....
GERMAN, relations, germanus. Whole or entire, as respects genealogy or descent; thus, "brother-german," denotes one who is brother both by the father and mother's side cousins-germane" those in the first and nearest degree, i. e., children of brothers or sisters.
Define germanium. germanium synonyms, germanium pronunciation, germanium translation, English dictionary definition of germanium. n. Symbol Ge A brittle, crystalline, gray-white metalloid element, widely used as a semiconductor, as an alloying agent and catalyst, and in certain optical...
Germanium is widely distributed in nature but is too reactive to occur free. Primary minerals include argyrodite (from which it was first isolated), germanite, renierite, and canfieldite, all of them rare; only germanite and renierite have been used as commercial sources for the element. Trace quantities of germanium are found in certain zinc blendes, in sulfidic ores of copper and arsenic ...
M559 Microsegregation in Germanium M560 Growth of Spherical Crystals M561 Whisker-Reinforced Composites M562 Indium-Antimonide Crystals M563 Mixed III-V Crystal Growth M564 Halide Eutectics M565 Silver Grids Melted in Space M566 Copper-Aluminum Eutectic Zero-Gravity Systems Studies M487 Habitability/Crew Quarters
Selective absorber surface coatings can be categorised into several distinct types based on different physical principles: Intrinsic, Semiconductor-metal tandems, Multilayer absorbers, Multi-dielectric composite coatings, Textured surfaces, and. Selectively solar-transmitting coating on a …
Germanium Whisker Transistors Robert Hall returned to General Electric Research Laboratories Schenectady just as Bell announced its point-contact transistor. Hall had just graduated PhD from Caltech and had previously worked at the laboratories on a range of projects including the Harper North Wartime radar diode project.
Crystal detector definition, a device for rectifying a modulated radio-frequency signal, consisting of a crystal of germanium, silicon, galena, or the like with a whisker contact, permitting a high-frequency current to pass freely in one direction only: one of the two principal components of a …
Definition: Point contact diode ... ( whisker). The semiconductor used in the construction of point contact diode can be either silicon or germanium but Germanium is used extensively because it possesses higher carrier mobility. The dimension of the semiconductor substrate is about 1.25 mm square and its thickness is 0.5 mm thick. One phase ...
A crystal radio receiver, also called a crystal set, is a simple radio receiver, popular in the early days of radio.It uses only the power of the received radio signal to produce sound, needing no external power. It is named for its most important component, a crystal detector, originally made from a piece of crystalline mineral such as galena. This component is now called a diode.
Definition of whisker in the Definitions.net dictionary. Meaning of whisker. What does whisker mean? Information and translations of whisker in the most comprehensive …
Apr 01, 1974· Naturally occurring vapor-liquid-solid (VLS) Whisker growth of germanium sulfide Author links open overlay panel Robert B. Finkelman Richard R. Larson Edward J. Dwornik Show more
Synonyms for Germanium whisker in Free Thesaurus. Antonyms for Germanium whisker. 2 synonyms for germanium: atomic number 32, Ge. What are synonyms for Germanium whisker?
PN junction diodes can be obtained in a number of semiconductor materials - the earliest diodes tended to be made from germanium, but most of them today are silicon diodes. The diode is simple in its basic concept, being formed from the junction of N-type and P-type materials, although in reality the manufacture and theory of operation are more ...
Aug 10, 2016· What is GERMANIUM? What does GERMANIUM mean? GERMANIUM meaning, definition & explanation.Germanium is a chemical elem...
Feb 19, 2017· I am a curious person by nature, so when I was asked why Germanium Stones were included with the Helo (Wor(l)d's Most Advanced Wearable Health Monitor), and what they did, I …
A germanium transistor is a variation on a standard transistor built on the element silicon, where, instead, a silicon-silicon-germanium alloy is commonly used to increase transmission speed of electrical signals. Individual electrical component speed adds up as an aggregate, and, therefore, a germanium transistor array can significantly ...
Jul 21, 2021· Germanium definition is - a grayish-white hard brittle metalloid element that resembles silicon and is used especially in optical and semiconductor materials and as a catalyst.
The Whisker was designed around a limited stock of NOS Soviet Germanium transistors. It takes you into classic fuzz territory and beyond while retaining the clarity and definition of YOUR sound. The Whisker is our secret weapon for great fuzz tones, and it never backs down from a fight. Bass or guitar, it pummels them all!
Solid-state device, electronic device in which electricity flows through solid semiconductor crystals (silicon, gallium arsenide, germanium) rather than through vacuum tubes. The first solid-state device was the " 's whisker" (1906), in which a fine wire was …
Solid-state device, electronic device in which electricity flows through solid semiconductor crystals (silicon, gallium arsenide, germanium) rather than through vacuum tubes. The first solid-state device was the "'s whisker" (1906), in which a fine wire was moved across a solid crystal to detect
Ohl realized that the problems with 's whisker detectors were caused by bad quality of the semiconductor. There-fore he melted the silicon in quartz tubes and then let it ... 1947 John Bardeen and Walter Brattain built a germanium point-contact transistor (Fig. 3) and demonstrated that this device exhibited a power gain. There was, however, an
Dec 24, 2010· CR (someone mentioned) would most likely refer to a germanium diode being used as a detector; and if you mention a 's Whisker and Galena, you should also mention Tin Whisker; an unwanted conductive crystalline growth from pure tin or zinc.
Germanium in minerals reveals distinct affinity to deep crust elements, like Li, Rb, Tl, and Ga, what reinforces hypothesis of deep crust Ge-origin in waters. A geochemical approach to explain germanium origin in potentially medicinal waters of the Bieszczady mountains (the Carpathians, se Poland)