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SURFACE STRUCTURES FOR ENHANCEMENT OF QUANTUM YIELD IN BROAD SPECTRUM EMISSION NANOCRYSTALS
SURFACE STRUCTURES FOR ENHANCEMENT OF QUANTUM YIELD IN BROAD SPECTRUM EMISSION NANOCRYSTALS
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机译:宽谱发射纳米晶体中量子产率增强的表面结构
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摘要
Disclosed are inorganic nanoparticles comprising a body comprising cadmium and/or zinc crystallized with selenium, sulfur, and/or tellurium; a multiplicity of phosphonic acid ligands comprising at least about 20% of the total surface ligand coverage; wherein the nanocrystal is capable of absorbing energy from a first electromagnetic region and capable of emitting light in a second electromagnetic region, wherein the maximum absorbance wavelength of the first electromagnetic region is different from the maximum emission wavelength of the second electromagnetic region, thereby providing a Stokes shift of at least about 20 nm, wherein the second electromagnetic region comprises an at least about 100 nm wide band of wavelengths, and wherein the nanoparticle exhibits has a quantum yield of at least about 10%. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
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