Passivated nanoparticles, method of fabrication thereof, and devices incorporating nanoparticles
First Claim
1. A plurality of semiconductor nanoparticles having an elementally passivated surface.
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Abstract
A plurality of semiconductor nanoparticles having an elementally passivated surface are provided. These nanoparticles are capable of being suspended in water without substantial agglomeration and substantial precipitation on container surfaces for at least 30 days. The method of making the semiconductor nanoparticles includes reacting at least a first reactant and a second reactant in a solution to form the semiconductor nanoparticles in the solution. A first reactant provides a passivating element which binds to dangling bonds on a surface of the nanoparticles to passivate the surface of the nanoparticles. The nanoparticle size can be tuned by etching the nanoparticles located in the solution to a desired size.
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Citations
46 Claims
- 1. A plurality of semiconductor nanoparticles having an elementally passivated surface.
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16-43. -43. (canceled)
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44. An article, comprising one of:
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(a) a polishing slurry comprising a polishing slurry fluid containing semiconductor nanoparticles;
(b) a device comprising a semiconductor nanoparticle hardness or wear resistant coating located on at least a portion of the device;
(c) an ultra low porosity material having a porosity below 10 volume percent comprising a solid matrix and semiconductor nanoparticles incorporated into the matrix;
(d) a filter comprising semiconductor nanoparticles;
(e) a paint comprising a liquid base and semiconductor nanoparticles;
(f) an article of apparel or footwear comprising a semiconductor nanoparticle moisture barrier layer located on at least one surface of the article;
(g) an edifice comprising a semiconductor nanoparticle moisture barrier layer located on at least one surface of the edifice;
(h) an environmental sensor comprising a radiation source and a matrix material containing semiconductor nanoparticles;
(i) an organic light emitting diode comprising an organic light emitting material in a matrix of semiconductor nanoparticles, a first electrode, and a second electrode;
(j) a lamp, comprising a shell a source of radiation located in the shell, and a layer of semiconductor nanoparticles located on at least one surface of the shell which absorb the radiation emitted by the radiation source and emit visible light;
(k) a magnetic data storage device comprising a magnetic field source, a data storage medium comprising semiconductor nanoparticles, and a photodetector which detects radiation emitted from the nanoparticles in response to the application of a magnetic field by the magnetic field source;
(l) a magnetic storage medium comprising a magnetic material and semiconductor nanoparticles;
(m) an optical storage medium comprising a substrate, and semiconductor nanoparticles located in predetermined areas of the substrate, such that first areas of the substrate contain the nanoparticles, while second areas of the substrate do not contain the nanoparticles;
(n) an optical system, comprising at least one microcantilever, and light emitting semiconductor nanoparticles located on a tip of the at least one microcantilever;
(o) an optical switch, comprising light emitting semiconductor nanoparticles, and a source of magnetic field which is adapted to extinguish radiation emitted by the nanoparticles when it provides a magnetic field adjacent to the nanoparticles;
(p) an ink composition comprising a liquid ink and semiconductor nanoparticles; and
(q) a cleaning composition comprising a cleaning fluid containing semiconductor nanoparticles. - View Dependent Claims (45, 46)
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Specification