Loading patent…
AssigneeNanocrystals Technology L.P.
InventorsEfim T. Goldburt, Rameshwar N. Bhargava, Bharati S. Kulkarni
Estimating the term…
A process for the production of metal oxide nanocrystalline phosphors activated with a rare earth, line emitting, element. The nanocrystal oxides are produced by a sol-gel like process. The process begins with an n-butoxide solution of the host and activator which is first subject to acetolysis which will cause the pH of the solution to change from basic to acidic. This is followed by the addition of water in a hydrolysis step which forms a host/activator hydroxide solution. To the host/activator hydroxide solution, sodium hydroxide, which is very basic, is added, which will cause the precipitation of host oxide nanocrystals activated with the activator. The host/activator n-butoxide precursors may be synthesized by azeotropic distillation.
A process for producing yttrium oxide host nanocrystals having diameters of less than 100 angstroms, said nanocrystals being activated with a rare earth activator, the process comprising the steps of:
A process for producing host metal oxide nanocrystals having diameters of less than 100 angstroms, said nanocrystals being activated with an activator element, the process comprising the steps of:
Dependencies are inferred from the claim text.