Claims
- 1. A method of producing an electronic device, comprising:
providing at least one population of quantum dots of a selected size distribution, the dots having a surface adapted to allow the dots to disperse in a host matrix; dispersing the quantum dots in said host matrix; and providing a solid state primary light source capable of causing the quantum dots to photoluminesce secondary light of a color characteristic of their size distribution.
- 2. The method of claim 1, where the step of providing a population of dots includes growing the dots by precipitation from a solution.
- 3. The method of claim 1, where the quantum dots comprise at least one material selected from the group consisting of CdS, CdSe, CdTe, ZnS, and ZnSe.
- 4. The method of claim 3, where the quantum dots further comprise an overcoating of at least one material selected from the group consisting of ZnS, ZnSe, CdS, CdSe, CdTe, and MgSe.
- 5. The method of claim 4, where the overcoating is produced by precipitation from a solution.
- 6. The method of claim 1, where the step of providing includes coating the quantum dots with a material having an affinity for the host matrix.
- 7. The method of claim 6, where the host matrix comprises a polymer and the coating comprises a related monomer.
- 8. The method of claim 1, where the host matrix comprises at least one material selected from the group consisting of polymers, silica glasses, and silica gels.
- 9. The method of claim 1, where the host matrix comprises a polymer selected from the group consisting of polystyrene, polyimides, and epoxies.
- 10. The method of claim 1, where the primary light source is selected from the group consisting of a light-emitting diode, a solid-state laser, and a solid-state ultraviolet source.
- 11. The method of claim 1, where the size distribution is characterized by an rms deviation in diameter of the quantum dots of less than 10%.
Parent Case Info
[0001] This application is a divisional of U.S. application Ser. No. 09/167,795, now issued as U.S. Pat. No. 6,501,091, which claims benefit of U.S. Provisional Application No. 60/092,120, filed Apr. 1, 1998. Both of these related applications are incorporated herein by reference in their entirety.
Government Interests
[0002] This invention was made with government support under Contract Number 94-00034 awarded by the National Science Foundation. The government has certain rights in the invention.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60092120 |
Apr 1998 |
US |
Divisions (1)
|
Number |
Date |
Country |
Parent |
09167795 |
Oct 1998 |
US |
Child |
10329596 |
Dec 2002 |
US |