منابع مشابه
Hyperbranched lead selenide nanowire networks.
Lead chalcogenide nanostructures are good potential candidates for applications in multiexciton solar cells, infrared photodetectors, and electroluminescence devices. Here we report the synthesis and electrical measurements of hyperbranched PbSe nanowire networks. Hyperbranched PbSe nanowire networks are synthesized via a vapor-liquid-solid (VLS) mechanism. The branching is induced by continuou...
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A bstruct-Measurements of the near-field intensity dis ributions of .7 three lead-sulfide-selenide diode lasers operating near 4.8 pm have been made as a function of injection current. Localized emission in the near field exhibits peaked structure of full width from 5 to 10 pm for operation above threshold. From the dependence of the emission profiles on injection current estimates of 25 ...
متن کاملSynthesis and Properties of Lead Selenide Nanocrystal Solids
We present results of our investigation of the synthesis, structural properties and electrical transport properties of lead selenide (PbSe) nanoparticle-derived solids. Stable colloidal solutions containing crystalline PbSe particles with sizes on the order of 5–10 nm were synthesized using an organometallic lyothermal growth method in high-temperature organic solvents (100∼200 ◦C). The nanopar...
متن کاملA Single Electron Transistor Made From Lead Cadmium Selenide Nanocrystals
With the miniaturization of transistor size, fabrication of transistor with lithography technique is a foreseen problem. It is possible to routinely create semiconductor nanocrystals whose dimensions are much smaller than those can be realized by lithography techniques using colloidal chemistry. The size of the nanocrystals can be varied easily by varying the process parameters to study the qua...
متن کاملLead Selenide Nanomaterials: Hydrothermal Synthesis, Characterization, Optical Properties and DFT Calculations
Well-defined crystalline PbSe nanocubes and nanospheres have been synthesized through a simple hydrothermal method by using Pb2+- EDTA and Pb2+- oleylamine complexes at 180°C for different reaction times. Composition and morphology of the samples have been characterized by means of XRD and SEM. Gradual release process of Pb2+ from Pb2+-EDTA and Pb2+-oleylamine complexes can adjust the growth ra...
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ژورنال
عنوان ژورنال: Nature
سال: 1948
ISSN: 0028-0836,1476-4687
DOI: 10.1038/161244a0