Preparation method of diamond rare earth europium color center particles

By coating a europium oxide suspension onto a diamond film and performing microwave plasma chemical vapor deposition, rare earth europium color center particles were prepared, solving the problem of residual europium oxide particles and improving luminescence intensity and particle quality.

CN122169061AActive Publication Date: 2026-06-09INNER MONGOLIA UNIV OF SCI & TECH
3 Cites 0 Cited by

Patent Information

Application Number
CN202610243161.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-02
Publication Date
2026-06-09
Estimated Expiration
2046-03-02

AI Technical Summary

Technical Problem

Existing technologies make it difficult to efficiently prepare rare earth europium color center particles in diamond, and europium oxide particles are prone to remain during the preparation process, affecting particle quality.

Method used

Europium oxide suspension was coated onto a diamond film using microwave plasma chemical vapor deposition (MPCVD), and then a secondary deposition was performed using an MPCVD apparatus to form rare earth europium color core particles, ensuring that the europium oxide particles were covered by the diamond core, thus forming a core-shell structure.

Benefits of technology

Diamond rare earth europium color center particles with no obvious traces of Eu2O3 nanoparticles on the surface were successfully prepared, with improved luminescence intensity and mostly irregular shapes of about 8μm, exhibiting good luminescence properties.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a preparation method of diamond rare earth europium color center particles, and belongs to the field of non-metallic element materials. Coating the single polished silicon wafer with europium oxide suspension liquid, and then forming diamond rare earth europium color center particles by adopting a microwave plasma chemical vapor deposition method; by means of the method, the diamond rare earth europium color center particles can grow on the surface of the diamond film, no obvious Eu2O3 nano particle trace exists on the surfaces of the diamond rare earth europium color center particles, and it is indicated that diamond crystal planting liquid in europium oxide particles rapidly forms the diamond rare earth europium color center particles in the chemical vapor deposition process; and finally, the europium oxide particles are covered by the diamond cores, so that core-shell structures, namely the diamond rare earth europium color center particles, are formed. Most of the prepared diamond rare earth europium color center particles are in irregular shapes of about 8 microns.
Need to check novelty before this filing date? Find Prior Art