Author(s): Tan, QH (Tan, Qinghai); Lai, JM (Lai, Jia-Min); Liu, XL (Liu, Xue-Lu); Guo, D (Guo, Dan); Xue, YZ (Xue, Yongzhou); Dou, XM (Dou, Xiuming); Sun, BQ (Sun, Bao-Quan); Deng, HX (Deng, Hui-Xiong); Tan, PH (Tan, Ping-Heng); Aharonovich, I (Aharonovich, Igor); Gao, WB (Gao, Weibo); Zhang, J (Zhang, Jun)

Source: NANO LETTERS Volume: 22 Issue: 3 Pages: 1331-1337 DOI: 10.1021/acs.nanolett.1c04647 Published: FEB 9 2022

Abstract: Quantum emitters are needed for a myriad of applications ranging from quantum sensing to quantum computing. Hexagonal boron nitride (hBN) quantum emitters are one of the most promising solid-state platforms to date due to their high brightness and stability and the possibility of a spin-photon interface. However, the understanding of the physical origins of the single-photon emitters (SPEs) is still limited. Here we report dense SPEs in hBN across the entire visible spectrum and present evidence that most of these SPEs can be well explained by donor-acceptor pairs (DAPS). On the basis of the DAP transition generation mechanism, we calculated their wavelength fingerprint, matching well with the experimentally observed photoluminescence spectrum. Our work serves as a step forward for the physical understanding of SPEs in hBN and their applications in quantum technologies.

Accession Number: WOS:000777171600060

PubMed ID: 35073101

Author Identifiers:

Author        Web of Science ResearcherID        ORCID Number

Aharonovich, Igor         G-8127-2017         0000-0003-4304-3935

Tan, Qinghai         P-5349-2019         0000-0003-4808-4795

Tan, Ping-Heng         D-1137-2009         0000-0001-6575-1516

Liu, Xuelu         AAW-9857-2020         0000-0001-9156-6760

Zhang, Jun                  0000-0002-9831-6796

ISSN: 1530-6984

eISSN: 1530-6992

Full Text: https://pubs.acs.org/doi/10.1021/acs.nanolett.1c04647