Manganese doped upconversion luminescence nanoparticles
AssigneeNomadics, Inc.
InventorWei Chen
Life of this patent
Estimating the term…
Abstract
The present relates in general to upconversion luminescence (“UCL”) materials and methods of making and using same and more particularly, but not meant to be limiting, to Mn2+ doped semiconductor nanoparticles for use as UCL materials. The present invention also relates in general to upconversion luminescence including two-photon absorption upconversion, and potential applications using UCL materials, including light emitting diodes, upconversion lasers, infrared detectors, chemical sensors, temperature sensors and biological labels, all of which incorporate a UCL material.
Claims10
An upconversion luminescence nanoparticle material having the general formula (X):(Mn, R), wherein
- (X) is a host having a size less than 100 nm and is represented by the formula (M1-zNz)1-xA1-rBr where M=Zn, Cd, Pb, Ca, Ba, Sr, and Mg;
- N=Zn, Cd, Pb, Ca, Ba, Sr, and Mg;
- A=S, Se, Te, and O;
- B=S, Se, Te, and O;
- wherein 0<x<1, 0<r≦1, 0<z≦1, and
- (R) is a rare earth ion.
An upconversion luminescence nanoparticle material selected from the group consisting of ZnS:Mn,Er;
- ZnSe:Mn,Er;
- MgS:Mn,Er;
- CaS:Mn,Er;
- ZnS:Mn,Yb;
- ZnSe:Mn,Yb;
- MgS:Mn,Yb;
- CaS:Mn,Yb and ZnS:Mn, Eu.
A film comprising an upconversion luminescence nanoparticle material, wherein the upconversion luminescence nanoparticle material has the general formula (X):(Mn, R), wherein
- (X) is a host having a size less than 100 nm and is represented by the formula (M1-zNz)1-xA1-rBr where M=Zn, Cd, Pb, Ca, Ba, Sr, and Mg;
- N=Zn, Cd, Pb, Ca, Ba, Sr, and Mg;
- A=S, Se, Te, and O;
- B=S, Se, Te, and O;
- wherein 0<x<1, 0<r≦1, 0<z≦1, and
- (R) is at least one rare earth ion.
A solution comprising a nanoparticle material having the general formula (X):(Mn, R), wherein
- (X) is a host having a size less than 100 nm and is represented by the formula (M1-zNz)1-xA1-rBr where M=Zn, Cd, Pb, Ca, Ba, Sr, and Mg;
- N=Zn, Cd, Pb, Ca, Ba, Sr, and Mg;
- A=S, Se, Te, and O;
- B=S, Se, Te, and O;
- wherein 0<x<1, 0<r≦1, 0<z≦1,
- (R) is at least one rare earth ion.
Dependencies are inferred from the claim text.