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US 11,656,231 B2Granted
Passivated nanoparticles
AssigneeTectus Corporation
InventorsLianhua Qu, Gregory Miller
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Abstract
Passivated semiconductor nanoparticles and methods for the fabrication and use of passivated semiconductor nanoparticles is provided herein.
Claims20
A method for passivating a semiconductor nanocrystal, said method comprising:
- applying a binary semiconductor coating over an alloy-gradient nanoparticle, said binary semiconductor coating having a wider band gap than the alloy-gradient nanoparticle to provide a binary semiconductor coated alloy-gradient nanoparticle;
- coating the binary semiconductor coated alloy-gradient nanoparticle with an aluminum layer comprising several monolayers of aluminum;
- and
- oxidizing the aluminum layer comprising several monolayers of aluminum by exposure to an ambient environment to form an aluminum oxide layer thereon, whereby a passivated semiconductor nanocrystal is obtained.
1 more element
A method for fabricating a passivated semiconductor nanocrystal, said method comprising:
- synthesizing an alloy-gradient nanoparticle, said nanoparticle comprising at least one Group II element and two or more different Group VI elements;
- applying a semiconductor coating over said alloy-gradient nanoparticle, said semiconductor coating having a wider band gap than the alloy-gradient nanoparticle, to provide a semiconductor coated alloy-gradient nanoparticle;
- coating the semiconductor coated alloy-gradient nanoparticle with an aluminum layer comprising several monolayers of aluminum;
- and
- oxidizing said aluminum layer comprising several monolayers of aluminum by exposure to an ambient environment to form an aluminum oxide layer thereon, whereby a passivated semiconductor nanocrystal is obtained.
2 more elements
Dependencies are inferred from the claim text.