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 lu
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.
대표청구항▼
I claim: 1. 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
I claim: 1. 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. 2. The upconversion luminescence nanoparticle material of claim 1, wherein the host is selected from the group consisting of Zn 1-xSr, Zn1-xSer, Zn1-xTe r, Cd1-xSr, Cd1-xSer, Cd1-xTer, Pb1-xSr, Pb1-xSer, Pb1-xTer, Mg1-xSr, Ca1-x Sr, Ba1-xSr and Sr1-xSr, wherein 0<x≦1, and 0<r≦1. 3. The upconversion luminescence nanoparticle material of claim 1, wherein the nanoparticle host is Zn0.4Cd0.4S. 4. The upconversion luminescence nanoparticle material of claim 1, wherein the nanoparticle host is Zn0.9S0.8 Se0.2. 5. The upconversion luminescence nanoparticle material of claim 1, wherein the rate earth ion is selected from the group consisting of Eu3+, Tb3+, Ce3+ or Er3+. 6. 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. 7. The upconversion luminescence nanoparticle material of claim 1, wherein the upconversion luminescence nanoparticle material has an excitation wavelength that is longer than the emission wavelength. 8. The upconversion luminescence nanoparticle material of claim 7, wherein the excitation wavelength is from 400 nm to 5000 nm and the emission wavelength is from about 200 nm to about 2000 nm. 9. 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. 10. 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.
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