Issue 46, 2021

Photoluminescence study of N-rich B-doped diamonds grown in NiMnCo solvent before and after annealing

Abstract

In this paper, we study the PL spectra of N-rich B-doped diamond single crystals grown in NiMnCo solvent, before and after HPHT (high pressure and high temperature) annealing. The PL peaks are observed under 325 nm, 488 nm and 532 nm excitation, respectively. The effects of boron impurity and HPHT annealing on optical centers in N-rich B-doped diamonds are discussed. Before HPHT annealing, as boron incorporation increases in the N-rich diamond, the intensity of the NV center (627 nm) presents a trend of rising first and then falling. After HPHT annealing at 2.5 GPa and 2000 °C, PL spectra show complex luminescence systems. A series of lines related to Ni–N and Co–N complexes are observed at 602.2 nm, 729.4 nm, 748.8 nm and 542.7 nm in PL spectra under 532 nm and 488 nm excitation. The paramagnetic NE8 center with a ZPL at 793.6 nm appears in the PL spectrum of the N-rich diamond without a boron additive. In the 325 nm excitation PL spectrum of the N-rich B-doped diamond, we also observed the blue luminescence band known as “band-A”. Boron incorporation significantly influences the PL intensity of Ni–N, Co–N and NV related optical centers in diamonds.

Graphical abstract: Photoluminescence study of N-rich B-doped diamonds grown in NiMnCo solvent before and after annealing

Article information

Article type
Paper
Submitted
18 jun 2021
Accepted
09 okt 2021
First published
11 okt 2021

CrystEngComm, 2021,23, 8110-8114

Photoluminescence study of N-rich B-doped diamonds grown in NiMnCo solvent before and after annealing

X. Miao, G. Liu, H. Ma, Z. Zhang, L. Zhou and X. Jia, CrystEngComm, 2021, 23, 8110 DOI: 10.1039/D1CE00806D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements