SYNTHESIS OF Pb ALLOY AND CORE/SHELL NANOWIRES
First Claim
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1. A method for producing PbSexY1-x nanowire alloys where Y═
- S or Te comprising;
providing PbSe nanowires;
producing a PbY solution where Y═
S or Te by mixing a Pb precursor solution with a Y precursor solution;
adding the PbSe nanowires to an growth solution at ambient temperature;
heating the growth solution after the addition of PbSe nanowires to a temperature of at least about 150°
C.; and
producing PbSexY1-x nanowire alloys by adding the PbY solution to the heated growth solution comprising PbSe nanowires.
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Abstract
Embodiments of the present invention are directed to methods of producing PbSexY1-x alloys and methods of producing PbSe/PbY core/shell nanowires. The method of producing PbSexY1-x alloys comprise providing PbSe nanowires, producing a PbY solution where Y═S or Te, adding the PbSe nanowires to an growth solution, and producing PbSexY1-x, nanowire alloys by adding the PbY solution to the heated growth solution comprising PbSe nanowires.
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Citations
24 Claims
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1. A method for producing PbSexY1-x nanowire alloys where Y═
- S or Te comprising;
providing PbSe nanowires; producing a PbY solution where Y═
S or Te by mixing a Pb precursor solution with a Y precursor solution;adding the PbSe nanowires to an growth solution at ambient temperature; heating the growth solution after the addition of PbSe nanowires to a temperature of at least about 150°
C.; andproducing PbSexY1-x nanowire alloys by adding the PbY solution to the heated growth solution comprising PbSe nanowires. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- S or Te comprising;
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10. A method for producing nanowires comprising a PbSe core and a PbS shell comprising the steps of:
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providing a core/shell growth solution comprising PbSe nanowires; heating the core/shell growth solution to a temperature sufficient to produce a PbS shell over the PbSe nanowires; adding a Pb precursor solution to the core/shell growth solution; and adding an S precursor solution to the core/shell growth solution after the addition of the Pb precursor to produce nanowires comprising a PbSe core and a PbS shell. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method for producing nanowires comprising a PbSe core and a PbTe shell comprising the steps of:
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providing a Pb precursor solution; adding a Te precursor solution to the Pb precursor solution to produce a PbTe solution; providing a core/shell growth solution heated to a temperature of about 150°
C., wherein the core/shell growth solution comprises PbSe nanowires; andadding the PbTe solution to the core/shell growth solution to form nanowires comprising a PbSe core and a PbTe shell. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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