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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. Alloys include solder, type metal, and various antifriction metals and compounds. Lead is extremely effective at absorbing sound and vibration. It is also used as radiation shielding for X-ray equipment and nuclear reactors. Oxides of Lead are used in producing fine "crystal glass" and "flint glass" of a high index of refraction for achromatic lenses. Lead ceramics and crystalline material have a wide range of industrial and optical applications, including infrared detection and imaging. Lead-based semiconductors, such as lead telluride, lead selenide and lead antimonide are finding application in photovoltaic (solar energy) cells and infra red detectors.

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. Selenium is available as metal and compounds with purities from 99% to 99.9999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Selenium was first discovered by Jons Berzelius in 1817.

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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Periodic table of the elements science and academic information, elements and advanced materials data, scientific presentations and all pages, designs, concepts, logos, and color schemes herein are the copyrighted proprietary rights and intellectual property of American Elements. American Elements is a U.S. Registered Trademark. © 2001-2009. American Elements. All rights reserved.

 

Recent Research & Development for Tellurium

  • Palladium and platinum complexes of tellurium-containing imidodiphosphinate ligands: nucleophilic attack of Li[(P(i)Pr2)(TeP(i)Pr2)N] on coordinated 1,5-cyclooctadiene. Robertson SD, Ritch JS, Chivers T. Dalton Trans. 2009 Oct 28;(40):8582-92. Epub 2009 Aug 14. PMID: 19809735 [PubMed - in process]

  • Halide-Capped Tellurium-Containing Macrocycles. Chandrasekhar V, Thirumoorthi R. Inorg Chem. 2009 Sep 29. [Epub ahead of print] PMID: 19788260 [PubMed - as supplied by publisher]

  • Analysis of palladium concentrations in airborne particulate matter with reductive co-precipitation, He collision gas, and ID-ICP-Q-MS. Alsenz H, Zereini F, Wiseman CL, Püttmann W. Anal Bioanal Chem. 2009 Sep 27. [Epub ahead of print] PMID: 19784830 [PubMed - as supplied by publisher]

  • Photolytic preparation of tellurium nanorods. Webber DH, Brutchey RL. Chem Commun (Camb). 2009 Oct 14;(38):5701-3. Epub 2009 Aug 11. PMID: 19774241 [PubMed - in process]

  • Effects of tellurite on growth of Saccharomyces cerevisiae. Massardo DR, Pontieri P, Maddaluno L, De Stefano M, Alifano P, Del Giudice L. Biometals. 2009 Sep 4. [Epub ahead of print] PMID: 19760109 [PubMed - as supplied by publisher]

  • Tellurium-enhanced nonresonant third-order optical nonlinearity in a germanosilicate optical fiber. Lin A, Liu X, Watekar PR, Zhao W, Peng B, Lu M, Wei W, Sun C, Wang Y, Han WT, Toulouse J. Appl Opt. 2009 Sep 10;48(26):4922-5. doi: 10.1364/AO.48.004922. PMID: 19745855 [PubMed - in process]

  • A glimpse on biological activities of tellurium compounds. Cunha RL, Gouvea IE, Juliano L. An Acad Bras Cienc. 2009 Sep;81(3):393-407. PMID: 19722011 [PubMed - in process]

  • Synthesis of the first tellurium-derivatized oligonucleotides for structural and functional studies. Sheng J, Hassan AE, Huang Z. Chemistry. 2009 Oct 5;15(39):10210-6. PMID: 19691067 [PubMed - in process]

  • Activation of tellurium with Zintl ions: 1/infinity{[Ge5Te10]4-}, an inorganic polymer with germanium in three different oxidation states. Zhang Q, Armatas G, Kanatzidis MG. Inorg Chem. 2009 Sep 21;48(18):8665-7. PMID: 19685902 [PubMed - in process]

  • Irreversible inhibition of human cathepsins B, L, S and K by hypervalent tellurium compounds. Cunha RL, Gouvêa IE, Feitosa GP, Alves MF, Brömme D, Comasseto JV, Tersariol IL, Juliano L. Biol Chem. 2009 Nov;390(11):1205-12. PMID: 19663682 [PubMed - in process]

  • Multicomponent reactions for the synthesis of multifunctional agents with activity against cancer cells. Shabaan S, Ba LA, Abbas M, Burkholz T, Denkert A, Gohr A, Wessjohann LA, Sasse F, Weber W, Jacob C. Chem Commun (Camb). 2009 Aug 21;(31):4702-4. Epub 2009 Jun 22. PMID: 19641815 [PubMed - in process]

  • Projection x-ray imaging with photon energy weighting: experimental evaluation with a prototype detector. Shikhaliev PM. Phys Med Biol. 2009 Aug 21;54(16):4971-92. Epub 2009 Jul 30. PMID: 19641240 [PubMed - indexed for MEDLINE]

  • Diaroyl tellurides: synthesis, structure and NBO analysis of (2-MeOC6H4CO)2Te--comparison with its sulfur and selenium isologues. The first observation of [MgBr][R(C=Te)O] salts. Niyomura O, Nakaiida S, Yamada R, Kato S, Ishida M, Ebihara M, Ando F, Koketsu J. Molecules. 2009 Jul 13;14(7):2555-72. PMID: 19633623 [PubMed - indexed for MEDLINE]

  • An unusual binary phosphorus-tellurium anion and its seleno- and thio- analogues: P(4)Ch(2)(2-) (Ch = S, Se, Te). Rotter C, Schuster M, Karaghiosoff K. Inorg Chem. 2009 Aug 17;48(16):7531-3. PMID: 19621885 [PubMed - in process]

  • Resolution of inflammation-related apoptotic processes by the synthetic tellurium compound, AS101 following liver injury. Brodsky M, Hirsh S, Albeck M, Sredni B. J Hepatol. 2009 Sep;51(3):491-503. Epub 2009 Jun 6. PMID: 19595469 [PubMed - in process]

  • Mechanistic aspects of quantum dot based probing of Cu (II) ions: role of dendrimer in sensor efficiency. Ghosh S, Priyam A, Bhattacharya SC, Saha A. J Fluoresc. 2009 Jul;19(4):723-31. Epub 2009 Jul 12. PMID: 19593654 [PubMed - indexed for MEDLINE]

  • Dielectric function of ZnTe nanocrystals by spectroscopic ellipsometry. Ahmed F, En Naciri A, Grob JJ, Stchakovsky M, Johann L. Nanotechnology. 2009 Jul 29;20(30):305702. Epub 2009 Jul 8. PMID: 19584414 [PubMed]

  • Spectroscopic and lasing performance of Tm3+-doped bulk TZN and TZNG tellurite glasses operating around 1.9 microm. Fusari F, Lagatsky AA, Richards B, Jha A, Sibbett W, Brown CT. Opt Express. 2008 Nov 10;16(23):19146-51. PMID: 19582007 [PubMed - indexed for MEDLINE]

  • Photoluminescence of CdTe nanocrystals modulated by methylene blue and DNA. A label-free luminescent signaling nanohybrid platform. Shen JS, Yu T, Xie JW, Jiang YB. Phys Chem Chem Phys. 2009 Jul 7;11(25):5062-9. Epub 2009 Mar 26. PMID: 19562136 [PubMed - indexed for MEDLINE]

  • Cefixime-tellurite rhamnose MacConkey agar for isolation of Vero cytotoxin-producing Escherichia coli serogroup O26 from Scottish cattle and sheep faeces. Evans J, Knight HI, Smith AW, Pearce MC, Hall M, Foster G, Low JC, Gunn GJ. Lett Appl Microbiol. 2008 Sep;47(3):148-52. PMID: 19552777 [PubMed - indexed for MEDLINE]

 

 

 

 

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