Version 2 2024-06-17, 23:00Version 2 2024-06-17, 23:00
Version 1 2017-03-10, 14:26Version 1 2017-03-10, 14:26
journal contribution
posted on 2024-06-17, 23:00authored byJO Orwa, I Aharonovich, F Jelezko, G Balasubramanian, P Balog, M Markham, DJ Twitchen, AD Greentree, S Prawer
Ni-related optical centres in diamond are promising as alternatives to the nitrogen vacancy (NV) centre for quantum applications and biomarking. In order to achieve the reliability and reproducibility required, a method for producing the Ni-related centres in a controllable manner needs to be established. In this study, we have attempted this control by implanting high purity CVD diamond samples with Ni and N followed by thermal annealing. Samples implanted with Ni show a new Ni-related PL peak centered at 711 nm and a well known doublet at 883/885 nm along with weak NV luminescence. The optical properties of the two Ni-related defects are investigated. In particular, an excited state lifetime of the 883/885 nm peak is measured to be 11.6 ns.