Tin(IV) Selenide SnSe2 Molar Mass, Molecular Weight. Formula and structure: Lead sulfide chemical formula is PbS and its molar mass is 239.26 g mol-1.Lead sulfide is formed by the cation Pb +2 (the lesser oxidized ion of Pb) and the anion S-2 (the lesser oxidizer ion of S). The second system, called the common system, is not conventional but is still prevalent and used in the health sciences.This system recognizes that many metals have two common cations. Ionic Compound Formula K sp. It does not require cooling, but performs better at lower temperatures. It forms cubic crystals of the NaCl structure; it has a direct bandgap of 0.27 eV at room temperature. Since then, PbSe has been commonly used as an infrared photodetector in multiple applications, from spectrometers for gas and flame detection to infrared fuzes for artillery ammunition or Passive Infrared Cueing systems (PICs). Lead selenide (PbSe), or lead(II) selenide, a selenide of lead, is a semiconductor material. Ioffe Institute in Russia. In fact, lead sulfide was one of the earliest materials to be used as a semiconductor. (Note that incorrectly identifies PbSe and other IV–VI semiconductors as indirect gap materials.) Lead selenide (PbSe), or lead(II) selenide, a selenide of lead, is a semiconductor material. Write the formula for each of the following compounds: a. sodium oxide b. sodium peroxide c. potassium cyanide d. copper(II) nitrate e. selenium tetrabromide f. iodous acid g. lead(IV) sulfide h. copper(I) chloride i. gallium arsenide j. cadmium selenide k. zinc sulfide l. nitrous acid m. diphosphorus pentoxide Early research works on the material as infrared detector were carried out during the 1930s and the first useful devices were processed by Germans, Americans and British during and just after World War II. Use the Common Ion Table to find the formula and charge for the sulfate ion. [16], Except where otherwise noted, data are given for materials in their, Methods to manufacture PbSe infrared detectors, "High-temperature thermoelectric performance of heavily doped PbSe", "Study of the Thermoelectric Properties of Lead Selenide Doped with Boron, Gallium, Indium, or Thallium", National Pollutant Inventory - Lead and Lead Compounds Fact Sheet, https://en.wikipedia.org/w/index.php?title=Lead_selenide&oldid=996499833, Articles containing unverified chemical infoboxes, Articles with unsourced statements from February 2007, Creative Commons Attribution-ShareAlike License, This page was last edited on 26 December 2020, at 23:55. [7] Several groups have since reported thermoelectric figures of merit exceeding unity, which is the characteristic of a high performance thermoelectric.[8][9][10]. lead(IV) sulfide: PbS 2: zinc selenide* ZnSe: gallium(I) iodide: GaI: vanadium(III) chloride: VCl 3: nickel(III) selenide: Ni 2 Se 3: iron(III) bromide: FeBr 3: silver sulfide* Ag 2 S: tin(IV) chloride: SnCl 4: manganese(II) fluoride: MnF 2: antimony(V) bromide: SbBr5: cobalt(III) oxide: Co 2 O 3: titanium(IV) oxide: TiO 2 Chemical bath disposition (CBD) is the standard manufacturing method. [11], As a sensitive material to the infrared radiation, PbSe has unique and outstanding characteristics: it can detect IR radiation of wavelengths from 1.5 to 5.2 μm (mid-wave infrared window, abbreviated MWIR – in some special conditions it is possible to extend its response beyond 6 μm), it has a high detectivity at room temperature (uncooled performance), and due to its quantum nature, it also presents a very fast response, which makes this material an excellent candidate as detector of low cost high speed infrared imagers.[12]. Subsequent theoretical work at Oak Ridge National Laboratory, USA predicted that its p-type performance could equal or exceed that of the sister compound, lead telluride. It is a heavy metal that is denser than most common materials. CopyCopied, CSID:10644804, http://www.chemspider.com/Chemical-Structure.10644804.html (accessed 16:10, Jan 15, 2021) [citation needed], Single crystal nanorods and polycrystalline nanotubes of lead selenide have been synthesized via controlled organism membranes. Since oxygen almost always has an oxidation state of 2-, we use simple mathematics to yield a net oxidation state of 0: overbrace((4))^"Pb" + overbrace((x)(-2))^"O" = 0 x = color(red)(2 There is thus one lead atom and two oxygen atoms per compound of lead(IV) oxide. Formula: CuSe Hill system formula: Cu 1 Se 1 CAS registry number: [1317-41-5] Formula weight: 142.506 Class: selenide Colour: blue-black Appearance: crystalline solid Melting point: 550°C (decomposes) Boiling point: Density: 6000 kg m-3 A major process involves smelting of PbS followed by reduction of the resulting oxide. Lead(IV) Selenide PbSe2 Molar Mass, Molecular Weight. CopyCopied, TYDJWWAXVOMTQR-UHFFFAOYSA-N Its detection mechanism is based on a change of conductivity of a polycrystalline thin-film of the active material when photons are incident. PbSe was one of the first materials found to be sensitive to the infrared radiation used for military applications. Lead (IV) Acetate, also known as lead tetraacetate, is a colourless solid that has a chemical formula of Pb(C 2 H 3 O 2) 4.It is easily degraded by moisture and is typically stored with extra acetic acid. Write the formula for each of the following compounds: a. zinc chloride b. tin(IV) fluoride c. calcium nitride d. aluminum sulfide e. mercury(I) selenide f. silver iodide. The (IV) tells us that Lead has a charge of +4. Lead selenide nanocrystals embedded into various materials can be used as quantum dots,[6] for example in nanocrystal solar cells. The common system uses two suffixes (-ic and -ous) that are appended to the stem of the element name.The -ic suffix represents the greater of the two cation charges, and the -ous suffix represents the … The mineral clausthalite is a naturally occurring lead selenide. 3) gallium selenide Ga 2 Se 3 4) strontium iodide SrI 2 5) titanium (IV) fluoride TiF 4 6) silver hydroxide AgOH 7) lead (IV) perchlorate Pb(ClO 4) 4 8) zinc hydride ZnH 2 9) potassium chromate K 2 CrO 4 10) iron (III) oxalate Fe 2 (C 2 O 4) 3 11) copper (II) bisulfate Cu(HSO 4) 2 Do I write Pb2(SO4)4 or Pb(SO4)2 (obviously, the mumbers will be in subscript) Thanks so much:) Search results for lead powder at Sigma-Aldrich. I am trying to balance a chemical equation. CBD method has been extensively used during last decades and is still used for processing PbSe infrared detectors. Write the element symbol for Lead. Since PbS is the main ore of lead, much effort has focused on its conversion. This activity includes every compound formula and name that can be formed from the list 44 Ions provided in Chemistry A at Pickerington High School Central. (Note that[2] incorrectly identifies PbSe and other IV–VI semiconductors as indirect gap materials.) Compare Products: Select up to 4 products. Formula: The (IV) indicates that lead is in the 4+ oxidation state in this compound. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 0.73 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 485.37 (Adapted Stein & Brown method) Melting Pt (deg C): 196.28 (Mean or Weighted MP) VP(mm Hg,25 deg C): 7.28E-011 (Modified Grain … For Lead (IV) sulfate we have a transition metal and a polyatomic ion. 3) vanadium (III) selenide V 2 Se 3 4) manganese (IV) nitride Mn 3 N 4 5) beryllium oxide BeO 6) sodium sulfate Na 2 SO 4 7) aluminum arsenide AlAs 8) potassium permanganate KMnO 4 9) chromium (VI) cyanide Cr(CN) 6 10) tin (II) sulfite SnSO 3 11) vanadium (V) fluoride VF 5 12) ammonium nitrate NH 4 NO 3 It is used for manufacture of infrared detectors for thermal imaging,[4] operating at wavelengths between 1.5–5.2 μm. Because of technological limitations associated to this method of processing, nowadays the biggest CBD PbSe detector format commercialized is a linear array of 1x256 elements. Lead selenide is a thermoelectric material. Lead selenide is a photoconductor material. [14] It is based on the deposition of the active material by thermal evaporation, followed by specific thermal treatments. 45 nm and their length was up to 1100 nm, for nanotubes the diameter was 50 nm and the length up to 2000 nm.[5]. chemical formula that corresponds to the name Name Formula 1) NaF 13) potassium fluoride ... cobalt (II) selenide is CoSe 20) silver cyanide is AgCN 21) copper (II) bicarbonate is Cu(HCO 3)2 22) iron (II) oxide is FeO 23) lithium cyanide is LiCN 24) lead (IV) sulfite is Pb(SO 3)2. Lead sulfide crystallizes in the sodium chloride motif, unlike many other IV-VI semiconductors. It is a grey crystalline solid material. This new processing method has been recently developed in Spain. *Please select more than one item to compare 5. Formula: Chemical Formula Writing Worksheet Write chemical formulas for the compounds in each box. Lead (atomic symbol: Pb, atomic number: 82) is a Block P, Group 14, Period 6 element with an atomic radius of 207.2. The electrolysis of molten lead(II) bromide. Chemical formulae provide a way to represent any chemical substance using the symbol of the elements present in it. lead(IV) sulfate is a product. The products of electrolysing lead bromide are lead metal and bromine gas. In fact, this has been the most important milestone in the last decades concerning the manufacturing of PbSe detectors, as it has opened the technology to the market of uncooled MWIR high-resolution imaging cameras with high frame rates and reduced costs. InChI=1S/Pb/q+4 Predicted data is generated using the US Environmental Protection Agency’s EPISuite™. 7 lead(IV) oxide 32 copper bromide 8 zinc nitride 33 sodium nitride 9 silver iodide 34 silver chloride 10 barium fluoride 35 sodium hydride 11 lead(II) iodide 36 potassium nitride 12 … See more Lead products. The material was identified as a potential high temperature thermoelectric with sodium or chlorine doping by Alekseva and co-workers at the A.F. What is widely accepted is that the material and the polycrystalline nature of the active thin film play a key role in both the reduction of the Auger mechanism and the reduction of the dark current associated with the presence of multiple intergrain depletion regions and potential barriers inside the polycrystalline thin films. The diameter of the nanorods were approx. NOTE: ALL NUMBERS IN FORMULAS SHOULD BE WRITTEN AS SUBSCRIPTS. [3] It is a grey crystalline solid material. "PbO"_2 This is also sometimes called lead dioxide. The number of electrons in each of Lead's shells is [2, 8, 18, 32, 18, 4] and its electron configuration is [Xe] 4f 14 5d 10 6s 2 6p 2.The lead atom has a radius of 175 pm and a Van der Waals radius of 202 pm. Two methods are commonly used nowadays to manufacture infrared detectors based on PbSe. This method has an intrinsic advantage compared with the CBD method, which is the compatibility with preprocessed substrates, like silicon CMOS-technology wafers, and the possibility of processing complex detectors, such as the focal plane arrays for imagers. Plumbic Selenide. The following are a good mix of naming and formula writing problems to help you get some practice. [15], Also quantum dots based PbSe photodetectors are under development in the recent decade. It may be formed by direct reaction between its constituent elements, lead and selenium. Lead (II) sulfide has an cubic crystal structure with a unit cells forms by one anion surrounded by 6 cations (it can also be considered one cation surrounded by 6 anions). MODULE 4 UNIT 1 Assignment Part A This assignment is to be sent to your instructor for evaluation. Solubility Product Constants near 25 °C. Provided below is a list of the chemical formulas of some common chemical compounds (along with their molecular weights). [13] It was developed in USA during the '60s and is based on the precipitation of the active material on a substrate rinsed in a controlled bath with selenourea, lead acetate, potassium iodine and other compounds. These photons are absorbed inside the PbSe micro-crystals causing then the promotion of electrons from the valence band to the conduction band. The peak sensitivity depends on temperature and varies between 3.7–4.7 μm. Stannic Selenide. In contrast to the polycrystalline material based detectors other solution processing techniques like spin-coating are applied. 1. Common Covalent Binary Inorganic Compounds # of atoms Prefix (element closest to fluorine goes on right)Common Examples 1 Mono H 2 Hydrogen N 2 Nitrogen 2 Di O 2 Oxygen NH 3 Ammonia 3 Tri O 3 Ozone NO Nitrogen monoxide (Nitric Oxide) 4 Tetra H 2O Water (Dihydrogen Monoxide) NO 2 Nitrogen dioxide 5 Penta F 2 Fluorine N 2O Dinitrogen monoxide (Nitrous oxide) 6 Hexa HF Hydrogen fluoride N Lead is soft and malleable, and also has a relatively low melting point.When freshly cut, lead is silvery with a hint of blue; it tarnishes to a dull gray color when exposed to air. Using these games will help you prepare for writing formulas and naming binary ionic compounds. You can electrolyse molten compounds as long as they are ionic compounds, so that on melting there free ions to move to carry the current to facilitate the electrolysis process of splitting the compound into its constituent elements. It forms cubic crystals of the NaCl structure; it has a direct bandgap of 0.27 eV at room temperature. Structure, properties, spectra, suppliers and links for: Lead(IV) fluoride, Lead tetrafluoride. Even though it has been extensively studied, today the mechanisms responsible of its high detectivity at room temperature are not well understood. CopyCopied, Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, Predicted data is generated using the US Environmental Protection Agency’s EPISuite™, Click to predict properties on the Chemicalize site, For medical information relating to Covid-19, please consult the, ACD/Labs Percepta Platform - PhysChem Module, US Environmental Protection Agency’s EPISuite™, Compounds with the same molecular formula, Search Google for structures with same skeleton. 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Have a transition metal and bromine gas their Molecular weights ) electrons from the valence band to conduction! Indirect gap materials. electrons from the valence band to the conduction band of... That is denser than most common materials. require cooling, but performs better lower... Co-Workers at the A.F selenide ( PbSe ), or lead ( IV ) we... A major process involves smelting of PbS followed by reduction of the NaCl structure ; it has direct!

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