Structured-Defect Engineering of Hexagonal Boron Nitride for Identified Visible Single-Photon Emitters.

ABSTRACT: Visible-range single-photon emitters (SPEs), based on hexagonal boron nitride (hBN), with exceptional optical performance have become an outstanding candidate for quantum optical technology. However, the control of the carbon defect structures to obtain uniform and confined band structure remains elusive, restricting their integration into on-chip quantum devices. Here, we demonstrate tuning of the defect structure of hBN to precisely control the emission in SPEs. The defect structure engineering from CB (carbon substituted at the boron site) to C₂B-CN (carbon doped into two boron sites and one nitrogen site) carbon defect conversion in hBN is realized by regulating the carbon concentration from 0.0005 at % to 0.082 at % in Cu substrates to adjust the carbon diffusion during the

SUBMITTER: Tang TW 

PROVIDER: S-EPMC11912567 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature