Tellurium-containing nanocrystalline materials
AssigneeMassachusetts Institute of Technology
InventorsMoungi G. Bawendi, Frederic V. Mikulec, Sungjee Kim
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Abstract
Tellurium-containing nanocrystallites are produced by injection of a precursor into a hot coordinating solvent, followed by controlled growth and annealing. Nanocrystallites may include CdTe, ZnTe, MgTe, HgTe, or alloys thereof. The nanocrystallites can photoluminesce with quantum efficiencies as high as 70%.
Claims34
A population of nanocrystallites comprising a plurality of nanocrystallites, each nanocrystallite including:
- a nanocrystalline core comprising MTe, wherein M is selected from the group consisting of Cd, Zn, Mg, and Hg;
- and
- an overcoating of a semiconductor material on a surface of the core,
- wherein the plurality of cores is monodisperse.
A population of nanocrystallites comprising a plurality of nanocrystallites, each nanocrystallite including:
- a nanocrystalline core comprising MTe, wherein M is selected from the group consisting of Cd, Zn, Mg, and Hg, and
- an overcoating of a semiconductor material on a surface of the core wherein the plurality of cores is monodisperse, and each core photoluminesces at a wavelength in the range of 435 to 800 nm.
A population of nanocrystallites comprising a plurality of nanocrystallites, each nanocrystallite including:
- a nanocrystalline core comprising MTe, wherein M is selected from the group consisting of Cd, Zn, Mg, and Hg, and
- an overcoating of a semiconductor material on a surface of the core, wherein the plurality of cores is monodisperse and each core photoluminesces with a full-width at half maximum (FWHM) of 70 nm or less.
Dependencies are inferred from the claim text.