WebPbTe unit cell Lead telluride is a compound of lead and tellurium (PbTe). It crystallizes in the NaCl crystal structure with Pb atoms occupying the cation and Te forming the anionic lattice. It is a narrow gap semiconductor with a band gap of 0.32 eV. [4] It occurs naturally as the mineral altaite . Properties [ edit] Dielectric constant ~1000. WebMelting Point >2000 °F: pH: Neutral: MOHS Hardness: 5.5: Water Absorption: 200-600 % by weight: Oil Adsorption: ... Lead Telluride Description : ... Bismuth compounds account for about half the production of bismuth. They are used in cosmetics, pigments, and a few pharmaceuticals, notably bismuth subsalicylate, used to treat diarrhea. ...
BISMUTH TELLURIDE 1304-82-1 - ChemicalBook
WebIn its elemental form, tellurium has a silvery lustrous gray appearance. The tellurium atom has a radius of 140 pm and a Van der Waals radius of 206 pm. Tellurium is most commonly sourced from the anode sludges produced as a byproduct of copper refining. The name Tellurium originates from the Greek word Tellus, meaning Earth. Recent Research Bismuth telluride (Bi2Te3) is a gray powder that is a compound of bismuth and tellurium also known as bismuth(III) telluride. It is a semiconductor, which, when alloyed with antimony or selenium, is an efficient thermoelectric material for refrigeration or portable power generation. Bi2Te3 is a … See more Bismuth telluride is a narrow-gap layered semiconductor with a trigonal unit cell. The valence and conduction band structure can be described as a many-ellipsoidal model with 6 constant-energy ellipsoids that are centered … See more Bismuth telluride is a well-studied topological insulator. Its physical properties have been shown to change at highly reduced … See more • Thermoelectric materials • Thermoelectric effect • Topological insulator See more The mineral form of Bi2Te3 is tellurobismuthite which is moderately rare. There are many natural bismuth tellurides of different stoichiometry, as well as compounds of the … See more • Media related to Bismuth telluride at Wikimedia Commons • Bismuth Telluride and its Alloys (Chapter 4.5 of Martin Wagner dissertation) See more pond state park
Tellurium - Wikipedia
WebMelting Point: 1410 °C (lit.) Density: 2.33 g/mL at 25 °C (lit.) Semiconductor properties <100>, N-type: ... Lead Telluride Description : ... Bismuth compounds account for about half the production of bismuth. They are used in cosmetics, pigments, and a few pharmaceuticals, notably bismuth subsalicylate, used to treat diarrhea. ... WebBismuth (Bi) Pieces Overview. ... Low Melting Point materials not ideal for sputtering. Suggested QCM Crystal: Gold Crystal: KJLCRYSTAL6-G10**** **** Suggestion based on previous experience but could vary by process. Contact local KJLC Sales Manager for further information. Weba melting point of which limits the temperature range for thermoelectric applications. A change of the free carrier concentration can, similarly to lead telluride, either be performed by changing the material composition or … ponds spray