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Lead Selenide Quantum Dots
PbSe Quantum Dots
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Lead Selenide Quantum Dot
PBSE-QD
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American Elements is a manufacturer and supplier specializing in producing Lead Selenide (PbSe) Quantum Dots. PbSe Quantum Dots are finding important application in solar energy due to their extremely wide band gap in which it absorbs light. American Elements manufactures quantum dots from several semiconductor materials, including Cadmium Telluride (CdTe), Cadmium Selenide/Zinc Sulfide (CdSe/ZnS), Lead Selenide (PbSe) and Zinc Cadmium Selenide/Zinc Sulfide (ZnCdSe/ZnS) nanoparticles with well-defined peak emission frequencies.

Lead is a Block P, Group 14, Period 6 element. The electronic configuration is [Xe] 4f14 5d10 6s2 6p2. In its elemental form lead's CAS number is 7439-92-1. The lead atom has a radius of 175.pm and it's Van der Waals radius is 202.pm. Lead is a bluish-white metal of bright luster, naturally occurring as a mixture of four stable isotopes: 204Pb (1.48%), 206Pb (23.6%), 207Pb (22.6%), and 208Pb (52.3%). It is highly resistant to corrosion and can be used to contain corrosive liquids such as sulfuric acid. Great quantities of Lead, both as the dioxide and the metal, are used in batteries, cable covering, plumbing, and ammunition.

Selenium is a Block P, Group 16, Period 4 element. The electronic configuration is [Ar] 3d10 4s2 4p4. In its elemental form selenium's CAS number is 7782-49-2. The selenium atom has a radius of 116.pm and it's Van der Waals radius is 190.pm. Selenium exhibits both photovoltaic action, where light is converted directly into electricity, and photoconductive action, where the electrical resistance decreases with increased illumination. These properties make selenium useful in the production of photocells and exposure meters for photographic use, as well as solar cells. Below its melting point, selenium is a p-type semiconductor and has many uses in electronic and solid-state applications.

Formula CAS No. Appearance Molecular Weight Density Melting Point Boiling Point
PbSe
PRODUCT CATALOG Submicron & Nanopowder Tolling Ultra High Purity Sputtering Target Crystal Growth Rod, Plate, Powder, etc.
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Recent Research & Development for Tellurium

  • Structural, Electrical, and Photoconductive Properties of Individual Single-Crystalline Tellurium Nanotubes Synthesized by a Chemical Route: Doping Effects on Electrical Structure. Small. 2008 Jun 2. [Epub ahead of print] No abstract available.

  • Twinning by merohedry in bis(4-methoxyphenyl)tellurium(IV) diiodide dimethyl sulfoxide hemisolvate. Acta Crystallogr C. 2008 May;64(Pt 5):o257-60. Epub 2008 Apr 9.

  • Doppler-free, multiwavelength acousto-optic deflector for two-photon addressing arrays of Rb atoms in a quantum information processor. Appl Opt. 2008 Apr 10;47(11):1816-31.

  • Reconstruction of individual radiation doses for a case-control study of thyroid cancer in French Polynesia. Health Phys. 2008 May;94(5):418-33.

  • Dynamics of the size distribution of CdTe quantum dot ensembles during growth in liquid and crystalline phases. Chemphyschem. 2008 May 16;9(7):1057-61.

  • Volatilisation of metals and metalloids: An inherent feature of methanoarchaea? Syst Appl Microbiol. 2008 Jun;31(2):81-7. Epub 2008 Apr 18.

  • Imaging characteristics of zinc sulfide shell, cadmium telluride core quantum dots. Nanomed. 2008 Feb;3(1):21-9.

  • Construction of the active site of glutathione peroxidase on polymer-based nanoparticles. Biomacromolecules. 2008 May;9(5):1467-73. Epub 2008 Apr 8.

  • Thick tellurium electrodeposition on nickel-coated copper substrate for (124)I production. Appl Radiat Isot. 2008 Feb 26. [Epub ahead of print]

  • Role of intestinal microbiota in transformation of bismuth and other metals and metalloids into volatile methyl and hydride derivatives in humans and mice. Appl Environ Microbiol. 2008 May;74(10):3069-75. Epub 2008 Mar 31.

  • Object detection with a field-portable spectropolarimetric imager. Appl Opt. 2001 Dec 20;40(36):6626-32.

  • Synthesis, NMR characterisation and X-ray structures of mixed chalcogenido PNP ligands containing tellurium: crystal structures of SeiPr2PNP(H)iPr2 and [NaN(EPiPr2)2]infinity (E = Se, Te). Dalton Trans. 2008 Apr 7;(13):1765-72. Epub 2008 Feb 20.

  • Effect of temperature on the absorption loss of chalcogenide glass fibers. Appl Opt. 1999 May 20;38(15):3206-13.

  • Electrical resistivity of tetramethyltetratelluronaphtalene crystal at very high pressures - examination of the condition of metallization of pi molecular crystal. J Am Chem Soc. 2008 Mar 26;130(12):3738-9. Epub 2008 Mar 1.

  • Surface characterization of platinum electrodes. Phys Chem Chem Phys. 2008 Mar 14;10(10):1359-73. Epub 2007 Oct 25.

  • [Te(CN)4] versus [Te(CN)3(micro-CN)](n). Dalton Trans. 2008 Mar 14;(10):1289-91. Epub 2008 Jan 30.

  • NMR solution structure of KP-TerB, a tellurite-resistance protein from Klebsiella pneumoniae. Protein Sci. 2008 Apr;17(4):785-9. Epub 2008 Feb 27.

  • Comparison of distribution and metabolism between tellurium and selenium in rats. J Inorg Biochem. 2008 Jan 26. [Epub ahead of print]

  • Speciation of inorganic tellurium from seawater by ICP-MS following magnetic SPE separation and preconcentration. J Sep Sci. 2008 Mar;31(4):760-7.

  • Utilizing a CdTe quantum dots-enzyme hybrid system for the determination of both phenolic compounds and hydrogen peroxide. Anal Chem. 2008 Feb 15;80(4):1141-5.

 

 

 

 

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